+++ /dev/null
-/*
- * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#ifndef __XFS_SUPPORT_SEMA_H__
-#define __XFS_SUPPORT_SEMA_H__
-
-#include <linux/time.h>
-#include <linux/wait.h>
-#include <linux/semaphore.h>
-#include <asm/atomic.h>
-
-/*
- * sema_t structure just maps to struct semaphore in Linux kernel.
- */
-
-typedef struct semaphore sema_t;
-
-#define initnsema(sp, val, name) sema_init(sp, val)
-#define psema(sp, b) down(sp)
-#define vsema(sp) up(sp)
-#define freesema(sema) do { } while (0)
-
-static inline int issemalocked(sema_t *sp)
-{
- return down_trylock(sp) || (up(sp), 0);
-}
-
-/*
- * Map cpsema (try to get the sema) to down_trylock. We need to switch
- * the return values since cpsema returns 1 (acquired) 0 (failed) and
- * down_trylock returns the reverse 0 (acquired) 1 (failed).
- */
-static inline int cpsema(sema_t *sp)
-{
- return down_trylock(sp) ? 0 : 1;
-}
-
-#endif /* __XFS_SUPPORT_SEMA_H__ */
unsigned long pgoff)
{
xfs_inode_t *ip;
- bhv_vnode_t *vp = vn_from_inode(inode);
loff_t isize = i_size_read(inode);
loff_t offset = page_offset(page);
int delalloc = -1, unmapped = -1, unwritten = -1;
if (page_has_buffers(page))
xfs_count_page_state(page, &delalloc, &unmapped, &unwritten);
- ip = xfs_vtoi(vp);
+ ip = XFS_I(inode);
if (!ip->i_rwtrace)
return;
bp, id,
(void *)(unsigned long)bp->b_flags,
(void *)(unsigned long)bp->b_hold.counter,
- (void *)(unsigned long)bp->b_sema.count.counter,
+ (void *)(unsigned long)bp->b_sema.count,
(void *)current,
data, ra,
(void *)(unsigned long)((bp->b_file_offset>>32) & 0xffffffff),
memset(bp, 0, sizeof(xfs_buf_t));
atomic_set(&bp->b_hold, 1);
- init_MUTEX_LOCKED(&bp->b_iodonesema);
+ init_completion(&bp->b_iowait);
INIT_LIST_HEAD(&bp->b_list);
INIT_LIST_HEAD(&bp->b_hash_list);
init_MUTEX_LOCKED(&bp->b_sema); /* held, no waiters */
return;
}
+ ASSERT(atomic_read(&bp->b_hold) > 0);
if (atomic_dec_and_lock(&bp->b_hold, &hash->bh_lock)) {
if (bp->b_relse) {
atomic_inc(&bp->b_hold);
spin_unlock(&hash->bh_lock);
xfs_buf_free(bp);
}
- } else {
- /*
- * Catch reference count leaks
- */
- ASSERT(atomic_read(&bp->b_hold) >= 0);
}
}
xfs_buf_iodone_work(&bp->b_iodone_work);
}
} else {
- up(&bp->b_iodonesema);
+ complete(&bp->b_iowait);
}
}
XB_TRACE(bp, "iowait", 0);
if (atomic_read(&bp->b_io_remaining))
blk_run_address_space(bp->b_target->bt_mapping);
- down(&bp->b_iodonesema);
+ wait_for_completion(&bp->b_iowait);
XB_TRACE(bp, "iowaited", (long)bp->b_error);
return bp->b_error;
}
xfs_buf_init(void)
{
#ifdef XFS_BUF_TRACE
- xfs_buf_trace_buf = ktrace_alloc(XFS_BUF_TRACE_SIZE, KM_SLEEP);
+ xfs_buf_trace_buf = ktrace_alloc(XFS_BUF_TRACE_SIZE, KM_NOFS);
#endif
xfs_buf_zone = kmem_zone_init_flags(sizeof(xfs_buf_t), "xfs_buf",
xfs_buf_iodone_t b_iodone; /* I/O completion function */
xfs_buf_relse_t b_relse; /* releasing function */
xfs_buf_bdstrat_t b_strat; /* pre-write function */
- struct semaphore b_iodonesema; /* Semaphore for I/O waiters */
+ struct completion b_iowait; /* queue for I/O waiters */
void *b_fspriv;
void *b_fspriv2;
void *b_fspriv3;
#define XFS_BUF_CPSEMA(bp) (xfs_buf_cond_lock(bp) == 0)
#define XFS_BUF_VSEMA(bp) xfs_buf_unlock(bp)
#define XFS_BUF_PSEMA(bp,x) xfs_buf_lock(bp)
-#define XFS_BUF_V_IODONESEMA(bp) up(&bp->b_iodonesema);
+#define XFS_BUF_FINISH_IOWAIT(bp) complete(&bp->b_iowait);
#define XFS_BUF_SET_TARGET(bp, target) ((bp)->b_target = (target))
#define XFS_BUF_TARGET(bp) ((bp)->b_target)
}
xfs_iunlock(ip, XFS_ILOCK_SHARED);
- return ip->i_vnode;
+ return VFS_I(ip);
}
STATIC struct dentry *
if (!inode)
return NULL;
if (IS_ERR(inode))
- return ERR_PTR(PTR_ERR(inode));
+ return ERR_CAST(inode);
result = d_alloc_anon(inode);
if (!result) {
iput(inode);
if (!inode)
return NULL;
if (IS_ERR(inode))
- return ERR_PTR(PTR_ERR(inode));
+ return ERR_CAST(inode);
result = d_alloc_anon(inode);
if (!result) {
iput(inode);
if (unlikely(error))
return ERR_PTR(-error);
- parent = d_alloc_anon(cip->i_vnode);
+ parent = d_alloc_anon(VFS_I(cip));
if (unlikely(!parent)) {
- iput(cip->i_vnode);
+ iput(VFS_I(cip));
return ERR_PTR(-ENOMEM);
}
return parent;
xfs_off_t last,
int fiopt)
{
- struct address_space *mapping = ip->i_vnode->i_mapping;
+ struct address_space *mapping = VFS_I(ip)->i_mapping;
if (mapping->nrpages)
truncate_inode_pages(mapping, first);
xfs_off_t last,
int fiopt)
{
- struct address_space *mapping = ip->i_vnode->i_mapping;
+ struct address_space *mapping = VFS_I(ip)->i_mapping;
int ret = 0;
if (mapping->nrpages) {
uint64_t flags,
int fiopt)
{
- struct address_space *mapping = ip->i_vnode->i_mapping;
+ struct address_space *mapping = VFS_I(ip)->i_mapping;
int ret = 0;
int ret2;
xfs_iunlock(ip, XFS_ILOCK_SHARED);
- *inode = XFS_ITOV(ip);
+ *inode = VFS_I(ip);
return 0;
}
xfs_diflags_to_linux(
struct xfs_inode *ip)
{
- struct inode *inode = XFS_ITOV(ip);
+ struct inode *inode = VFS_I(ip);
unsigned int xflags = xfs_ip2xflags(ip);
if (xflags & XFS_XFLAG_IMMUTABLE)
xfs_synchronize_atime(
xfs_inode_t *ip)
{
- struct inode *inode = ip->i_vnode;
+ struct inode *inode = VFS_I(ip);
if (inode) {
ip->i_d.di_atime.t_sec = (__int32_t)inode->i_atime.tv_sec;
xfs_mark_inode_dirty_sync(
xfs_inode_t *ip)
{
- struct inode *inode = ip->i_vnode;
+ struct inode *inode = VFS_I(ip);
if (inode)
mark_inode_dirty_sync(inode);
* Change the requested timestamp in the given inode.
* We don't lock across timestamp updates, and we don't log them but
* we do record the fact that there is dirty information in core.
- *
- * NOTE -- callers MUST combine XFS_ICHGTIME_MOD or XFS_ICHGTIME_CHG
- * with XFS_ICHGTIME_ACC to be sure that access time
- * update will take. Calling first with XFS_ICHGTIME_ACC
- * and then XFS_ICHGTIME_MOD may fail to modify the access
- * timestamp if the filesystem is mounted noacctm.
*/
void
xfs_ichgtime(
xfs_inode_t *ip,
int flags)
{
- struct inode *inode = vn_to_inode(XFS_ITOV(ip));
+ struct inode *inode = VFS_I(ip);
timespec_t tv;
+ int sync_it = 0;
+
+ tv = current_fs_time(inode->i_sb);
- nanotime(&tv);
- if (flags & XFS_ICHGTIME_MOD) {
+ if ((flags & XFS_ICHGTIME_MOD) &&
+ !timespec_equal(&inode->i_mtime, &tv)) {
inode->i_mtime = tv;
ip->i_d.di_mtime.t_sec = (__int32_t)tv.tv_sec;
ip->i_d.di_mtime.t_nsec = (__int32_t)tv.tv_nsec;
+ sync_it = 1;
}
- if (flags & XFS_ICHGTIME_ACC) {
- inode->i_atime = tv;
- ip->i_d.di_atime.t_sec = (__int32_t)tv.tv_sec;
- ip->i_d.di_atime.t_nsec = (__int32_t)tv.tv_nsec;
- }
- if (flags & XFS_ICHGTIME_CHG) {
+ if ((flags & XFS_ICHGTIME_CHG) &&
+ !timespec_equal(&inode->i_ctime, &tv)) {
inode->i_ctime = tv;
ip->i_d.di_ctime.t_sec = (__int32_t)tv.tv_sec;
ip->i_d.di_ctime.t_nsec = (__int32_t)tv.tv_nsec;
+ sync_it = 1;
}
/*
* ensure that the compiler does not reorder the update
* of i_update_core above the timestamp updates above.
*/
- SYNCHRONIZE();
- ip->i_update_core = 1;
- if (!(inode->i_state & I_NEW))
+ if (sync_it) {
+ SYNCHRONIZE();
+ ip->i_update_core = 1;
mark_inode_dirty_sync(inode);
-}
-
-/*
- * Variant on the above which avoids querying the system clock
- * in situations where we know the Linux inode timestamps have
- * just been updated (and so we can update our inode cheaply).
- */
-void
-xfs_ichgtime_fast(
- xfs_inode_t *ip,
- struct inode *inode,
- int flags)
-{
- timespec_t *tvp;
-
- /*
- * Atime updates for read() & friends are handled lazily now, and
- * explicit updates must go through xfs_ichgtime()
- */
- ASSERT((flags & XFS_ICHGTIME_ACC) == 0);
-
- if (flags & XFS_ICHGTIME_MOD) {
- tvp = &inode->i_mtime;
- ip->i_d.di_mtime.t_sec = (__int32_t)tvp->tv_sec;
- ip->i_d.di_mtime.t_nsec = (__int32_t)tvp->tv_nsec;
}
- if (flags & XFS_ICHGTIME_CHG) {
- tvp = &inode->i_ctime;
- ip->i_d.di_ctime.t_sec = (__int32_t)tvp->tv_sec;
- ip->i_d.di_ctime.t_nsec = (__int32_t)tvp->tv_nsec;
- }
-
- /*
- * We update the i_update_core field _after_ changing
- * the timestamps in order to coordinate properly with
- * xfs_iflush() so that we don't lose timestamp updates.
- * This keeps us from having to hold the inode lock
- * while doing this. We use the SYNCHRONIZE macro to
- * ensure that the compiler does not reorder the update
- * of i_update_core above the timestamp updates above.
- */
- SYNCHRONIZE();
- ip->i_update_core = 1;
- if (!(inode->i_state & I_NEW))
- mark_inode_dirty_sync(inode);
}
/*
if (unlikely(error))
goto out_free_acl;
- inode = ip->i_vnode;
+ inode = VFS_I(ip);
error = xfs_init_security(inode, dir);
if (unlikely(error))
return NULL;
}
- return d_splice_alias(cip->i_vnode, dentry);
+ return d_splice_alias(VFS_I(cip), dentry);
}
STATIC struct dentry *
/* if exact match, just splice and exit */
if (!ci_name.name)
- return d_splice_alias(ip->i_vnode, dentry);
+ return d_splice_alias(VFS_I(ip), dentry);
/* else case-insensitive match... */
dname.name = ci_name.name;
dname.len = ci_name.len;
- dentry = d_add_ci(ip->i_vnode, dentry, &dname);
+ dentry = d_add_ci(VFS_I(ip), dentry, &dname);
kmem_free(ci_name.name);
return dentry;
}
if (unlikely(error))
goto out;
- inode = cip->i_vnode;
+ inode = VFS_I(cip);
error = xfs_init_security(inode, dir);
if (unlikely(error))
return error;
}
-const struct inode_operations xfs_inode_operations = {
+static const struct inode_operations xfs_inode_operations = {
.permission = xfs_vn_permission,
.truncate = xfs_vn_truncate,
.getattr = xfs_vn_getattr,
.fallocate = xfs_vn_fallocate,
};
-const struct inode_operations xfs_dir_inode_operations = {
+static const struct inode_operations xfs_dir_inode_operations = {
.create = xfs_vn_create,
.lookup = xfs_vn_lookup,
.link = xfs_vn_link,
.listxattr = xfs_vn_listxattr,
};
-const struct inode_operations xfs_dir_ci_inode_operations = {
+static const struct inode_operations xfs_dir_ci_inode_operations = {
.create = xfs_vn_create,
.lookup = xfs_vn_ci_lookup,
.link = xfs_vn_link,
.listxattr = xfs_vn_listxattr,
};
-const struct inode_operations xfs_symlink_inode_operations = {
+static const struct inode_operations xfs_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = xfs_vn_follow_link,
.put_link = xfs_vn_put_link,
.removexattr = generic_removexattr,
.listxattr = xfs_vn_listxattr,
};
+
+STATIC void
+xfs_diflags_to_iflags(
+ struct inode *inode,
+ struct xfs_inode *ip)
+{
+ if (ip->i_d.di_flags & XFS_DIFLAG_IMMUTABLE)
+ inode->i_flags |= S_IMMUTABLE;
+ else
+ inode->i_flags &= ~S_IMMUTABLE;
+ if (ip->i_d.di_flags & XFS_DIFLAG_APPEND)
+ inode->i_flags |= S_APPEND;
+ else
+ inode->i_flags &= ~S_APPEND;
+ if (ip->i_d.di_flags & XFS_DIFLAG_SYNC)
+ inode->i_flags |= S_SYNC;
+ else
+ inode->i_flags &= ~S_SYNC;
+ if (ip->i_d.di_flags & XFS_DIFLAG_NOATIME)
+ inode->i_flags |= S_NOATIME;
+ else
+ inode->i_flags &= ~S_NOATIME;
+}
+
+/*
+ * Initialize the Linux inode, set up the operation vectors and
+ * unlock the inode.
+ *
+ * When reading existing inodes from disk this is called directly
+ * from xfs_iget, when creating a new inode it is called from
+ * xfs_ialloc after setting up the inode.
+ */
+void
+xfs_setup_inode(
+ struct xfs_inode *ip)
+{
+ struct inode *inode = ip->i_vnode;
+
+ inode->i_mode = ip->i_d.di_mode;
+ inode->i_nlink = ip->i_d.di_nlink;
+ inode->i_uid = ip->i_d.di_uid;
+ inode->i_gid = ip->i_d.di_gid;
+
+ switch (inode->i_mode & S_IFMT) {
+ case S_IFBLK:
+ case S_IFCHR:
+ inode->i_rdev =
+ MKDEV(sysv_major(ip->i_df.if_u2.if_rdev) & 0x1ff,
+ sysv_minor(ip->i_df.if_u2.if_rdev));
+ break;
+ default:
+ inode->i_rdev = 0;
+ break;
+ }
+
+ inode->i_generation = ip->i_d.di_gen;
+ i_size_write(inode, ip->i_d.di_size);
+ inode->i_atime.tv_sec = ip->i_d.di_atime.t_sec;
+ inode->i_atime.tv_nsec = ip->i_d.di_atime.t_nsec;
+ inode->i_mtime.tv_sec = ip->i_d.di_mtime.t_sec;
+ inode->i_mtime.tv_nsec = ip->i_d.di_mtime.t_nsec;
+ inode->i_ctime.tv_sec = ip->i_d.di_ctime.t_sec;
+ inode->i_ctime.tv_nsec = ip->i_d.di_ctime.t_nsec;
+ xfs_diflags_to_iflags(inode, ip);
+ xfs_iflags_clear(ip, XFS_IMODIFIED);
+
+ switch (inode->i_mode & S_IFMT) {
+ case S_IFREG:
+ inode->i_op = &xfs_inode_operations;
+ inode->i_fop = &xfs_file_operations;
+ inode->i_mapping->a_ops = &xfs_address_space_operations;
+ break;
+ case S_IFDIR:
+ if (xfs_sb_version_hasasciici(&XFS_M(inode->i_sb)->m_sb))
+ inode->i_op = &xfs_dir_ci_inode_operations;
+ else
+ inode->i_op = &xfs_dir_inode_operations;
+ inode->i_fop = &xfs_dir_file_operations;
+ break;
+ case S_IFLNK:
+ inode->i_op = &xfs_symlink_inode_operations;
+ if (!(ip->i_df.if_flags & XFS_IFINLINE))
+ inode->i_mapping->a_ops = &xfs_address_space_operations;
+ break;
+ default:
+ inode->i_op = &xfs_inode_operations;
+ init_special_inode(inode, inode->i_mode, inode->i_rdev);
+ break;
+ }
+
+ xfs_iflags_clear(ip, XFS_INEW);
+ barrier();
+
+ unlock_new_inode(inode);
+}
#ifndef __XFS_IOPS_H__
#define __XFS_IOPS_H__
-extern const struct inode_operations xfs_inode_operations;
-extern const struct inode_operations xfs_dir_inode_operations;
-extern const struct inode_operations xfs_dir_ci_inode_operations;
-extern const struct inode_operations xfs_symlink_inode_operations;
+struct xfs_inode;
extern const struct file_operations xfs_file_operations;
extern const struct file_operations xfs_dir_file_operations;
extern ssize_t xfs_vn_listxattr(struct dentry *, char *data, size_t size);
-struct xfs_inode;
-extern void xfs_ichgtime(struct xfs_inode *, int);
-extern void xfs_ichgtime_fast(struct xfs_inode *, struct inode *, int);
-
-#define xfs_vtoi(vp) \
- ((struct xfs_inode *)vn_to_inode(vp)->i_private)
-
-#define XFS_I(inode) \
- ((struct xfs_inode *)(inode)->i_private)
+extern void xfs_setup_inode(struct xfs_inode *);
#endif /* __XFS_IOPS_H__ */
#include <mrlock.h>
#include <sv.h>
#include <mutex.h>
-#include <sema.h>
#include <time.h>
#include <support/ktrace.h>
#include <support/debug.h>
#include <support/uuid.h>
+#include <linux/semaphore.h>
#include <linux/mm.h>
#include <linux/kernel.h>
#include <linux/blkdev.h>
#define xfs_sort(a,n,s,fn) sort(a,n,s,fn,NULL)
#define xfs_stack_trace() dump_stack()
#define xfs_itruncate_data(ip, off) \
- (-vmtruncate(vn_to_inode(XFS_ITOV(ip)), (off)))
+ (-vmtruncate(VFS_I(ip), (off)))
/* Move the kernel do_div definition off to one side */
struct address_space *mapping;
int status;
- mapping = ip->i_vnode->i_mapping;
+ mapping = VFS_I(ip)->i_mapping;
do {
unsigned offset, bytes;
void *fsdata;
*/
if (likely(!(ioflags & IO_INVIS) &&
!mnt_want_write(file->f_path.mnt))) {
- file_update_time(file);
- xfs_ichgtime_fast(xip, inode,
- XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+ xfs_ichgtime(xip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
mnt_drop_write(file->f_path.mnt);
}
return (((__uint64_t)pagefactor) << bitshift) - 1;
}
-STATIC_INLINE void
-xfs_set_inodeops(
- struct inode *inode)
-{
- switch (inode->i_mode & S_IFMT) {
- case S_IFREG:
- inode->i_op = &xfs_inode_operations;
- inode->i_fop = &xfs_file_operations;
- inode->i_mapping->a_ops = &xfs_address_space_operations;
- break;
- case S_IFDIR:
- if (xfs_sb_version_hasasciici(&XFS_M(inode->i_sb)->m_sb))
- inode->i_op = &xfs_dir_ci_inode_operations;
- else
- inode->i_op = &xfs_dir_inode_operations;
- inode->i_fop = &xfs_dir_file_operations;
- break;
- case S_IFLNK:
- inode->i_op = &xfs_symlink_inode_operations;
- if (!(XFS_I(inode)->i_df.if_flags & XFS_IFINLINE))
- inode->i_mapping->a_ops = &xfs_address_space_operations;
- break;
- default:
- inode->i_op = &xfs_inode_operations;
- init_special_inode(inode, inode->i_mode, inode->i_rdev);
- break;
- }
-}
-
-STATIC_INLINE void
-xfs_revalidate_inode(
- xfs_mount_t *mp,
- bhv_vnode_t *vp,
- xfs_inode_t *ip)
-{
- struct inode *inode = vn_to_inode(vp);
-
- inode->i_mode = ip->i_d.di_mode;
- inode->i_nlink = ip->i_d.di_nlink;
- inode->i_uid = ip->i_d.di_uid;
- inode->i_gid = ip->i_d.di_gid;
-
- switch (inode->i_mode & S_IFMT) {
- case S_IFBLK:
- case S_IFCHR:
- inode->i_rdev =
- MKDEV(sysv_major(ip->i_df.if_u2.if_rdev) & 0x1ff,
- sysv_minor(ip->i_df.if_u2.if_rdev));
- break;
- default:
- inode->i_rdev = 0;
- break;
- }
-
- inode->i_generation = ip->i_d.di_gen;
- i_size_write(inode, ip->i_d.di_size);
- inode->i_atime.tv_sec = ip->i_d.di_atime.t_sec;
- inode->i_atime.tv_nsec = ip->i_d.di_atime.t_nsec;
- inode->i_mtime.tv_sec = ip->i_d.di_mtime.t_sec;
- inode->i_mtime.tv_nsec = ip->i_d.di_mtime.t_nsec;
- inode->i_ctime.tv_sec = ip->i_d.di_ctime.t_sec;
- inode->i_ctime.tv_nsec = ip->i_d.di_ctime.t_nsec;
- if (ip->i_d.di_flags & XFS_DIFLAG_IMMUTABLE)
- inode->i_flags |= S_IMMUTABLE;
- else
- inode->i_flags &= ~S_IMMUTABLE;
- if (ip->i_d.di_flags & XFS_DIFLAG_APPEND)
- inode->i_flags |= S_APPEND;
- else
- inode->i_flags &= ~S_APPEND;
- if (ip->i_d.di_flags & XFS_DIFLAG_SYNC)
- inode->i_flags |= S_SYNC;
- else
- inode->i_flags &= ~S_SYNC;
- if (ip->i_d.di_flags & XFS_DIFLAG_NOATIME)
- inode->i_flags |= S_NOATIME;
- else
- inode->i_flags &= ~S_NOATIME;
- xfs_iflags_clear(ip, XFS_IMODIFIED);
-}
-
-void
-xfs_initialize_vnode(
- struct xfs_mount *mp,
- bhv_vnode_t *vp,
- struct xfs_inode *ip)
-{
- struct inode *inode = vn_to_inode(vp);
-
- if (!ip->i_vnode) {
- ip->i_vnode = vp;
- inode->i_private = ip;
- }
-
- /*
- * We need to set the ops vectors, and unlock the inode, but if
- * we have been called during the new inode create process, it is
- * too early to fill in the Linux inode. We will get called a
- * second time once the inode is properly set up, and then we can
- * finish our work.
- */
- if (ip->i_d.di_mode != 0 && (inode->i_state & I_NEW)) {
- xfs_revalidate_inode(mp, vp, ip);
- xfs_set_inodeops(inode);
-
- xfs_iflags_clear(ip, XFS_INEW);
- barrier();
-
- unlock_new_inode(inode);
- }
-}
-
int
xfs_blkdev_get(
xfs_mount_t *mp,
xfs_fs_alloc_inode(
struct super_block *sb)
{
- bhv_vnode_t *vp;
-
- vp = kmem_zone_alloc(xfs_vnode_zone, KM_SLEEP);
- if (unlikely(!vp))
- return NULL;
- return vn_to_inode(vp);
+ return kmem_zone_alloc(xfs_vnode_zone, KM_SLEEP);
}
STATIC void
xfs_fs_destroy_inode(
struct inode *inode)
{
- kmem_zone_free(xfs_vnode_zone, vn_from_inode(inode));
+ kmem_zone_free(xfs_vnode_zone, inode);
}
STATIC void
xfs_fs_inode_init_once(
void *vnode)
{
- inode_init_once(vn_to_inode((bhv_vnode_t *)vnode));
+ inode_init_once((struct inode *)vnode);
}
/*
xfs_flush_inode(
xfs_inode_t *ip)
{
- struct inode *inode = ip->i_vnode;
+ struct inode *inode = VFS_I(ip);
igrab(inode);
xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_inode_work);
xfs_flush_device(
xfs_inode_t *ip)
{
- struct inode *inode = vn_to_inode(XFS_ITOV(ip));
+ struct inode *inode = VFS_I(ip);
igrab(inode);
xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_device_work);
return 0;
}
+STATIC void
+xfs_free_fsname(
+ struct xfs_mount *mp)
+{
+ kfree(mp->m_fsname);
+ kfree(mp->m_rtname);
+ kfree(mp->m_logname);
+}
+
STATIC void
xfs_fs_put_super(
struct super_block *sb)
error = xfs_unmount_flush(mp, 0);
WARN_ON(error);
- IRELE(rip);
-
/*
* If we're forcing a shutdown, typically because of a media error,
* we want to make sure we invalidate dirty pages that belong to
}
xfs_unmountfs(mp);
+ xfs_freesb(mp);
xfs_icsb_destroy_counters(mp);
xfs_close_devices(mp);
xfs_qmops_put(mp);
xfs_dmops_put(mp);
+ xfs_free_fsname(mp);
kfree(mp);
}
struct xfs_mount_args *ap,
struct xfs_mount *mp)
{
+ int error;
+
/* Values are in BBs */
if ((ap->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) {
/*
ap->logbufsize);
return XFS_ERROR(EINVAL);
}
+
+ error = ENOMEM;
+
mp->m_logbsize = ap->logbufsize;
mp->m_fsname_len = strlen(ap->fsname) + 1;
- mp->m_fsname = kmem_alloc(mp->m_fsname_len, KM_SLEEP);
- strcpy(mp->m_fsname, ap->fsname);
+
+ mp->m_fsname = kstrdup(ap->fsname, GFP_KERNEL);
+ if (!mp->m_fsname)
+ goto out;
+
if (ap->rtname[0]) {
- mp->m_rtname = kmem_alloc(strlen(ap->rtname) + 1, KM_SLEEP);
- strcpy(mp->m_rtname, ap->rtname);
+ mp->m_rtname = kstrdup(ap->rtname, GFP_KERNEL);
+ if (!mp->m_rtname)
+ goto out_free_fsname;
+
}
+
if (ap->logname[0]) {
- mp->m_logname = kmem_alloc(strlen(ap->logname) + 1, KM_SLEEP);
- strcpy(mp->m_logname, ap->logname);
+ mp->m_logname = kstrdup(ap->logname, GFP_KERNEL);
+ if (!mp->m_logname)
+ goto out_free_rtname;
}
if (ap->flags & XFSMNT_WSYNC)
if (ap->flags & XFSMNT_DMAPI)
mp->m_flags |= XFS_MOUNT_DMAPI;
return 0;
+
+
+ out_free_rtname:
+ kfree(mp->m_rtname);
+ out_free_fsname:
+ kfree(mp->m_fsname);
+ out:
+ return error;
}
/*
*/
error = xfs_start_flags(args, mp);
if (error)
- goto out_destroy_counters;
+ goto out_free_fsname;
error = xfs_readsb(mp, flags);
if (error)
- goto out_destroy_counters;
+ goto out_free_fsname;
error = xfs_finish_flags(args, mp);
if (error)
goto out_free_sb;
if (error)
goto out_free_sb;
- error = xfs_mountfs(mp, flags);
+ error = xfs_mountfs(mp);
if (error)
goto out_filestream_unmount;
sb->s_time_gran = 1;
set_posix_acl_flag(sb);
- root = igrab(mp->m_rootip->i_vnode);
+ root = igrab(VFS_I(mp->m_rootip));
if (!root) {
error = ENOENT;
goto fail_unmount;
xfs_filestream_unmount(mp);
out_free_sb:
xfs_freesb(mp);
- out_destroy_counters:
+ out_free_fsname:
+ xfs_free_fsname(mp);
xfs_icsb_destroy_counters(mp);
xfs_close_devices(mp);
out_put_qmops:
error = xfs_unmount_flush(mp, 0);
WARN_ON(error);
- IRELE(mp->m_rootip);
-
xfs_unmountfs(mp);
- goto out_destroy_counters;
+ goto out_free_sb;
}
STATIC int
STATIC int __init
xfs_init_zones(void)
{
- xfs_vnode_zone = kmem_zone_init_flags(sizeof(bhv_vnode_t), "xfs_vnode",
+ xfs_vnode_zone = kmem_zone_init_flags(sizeof(struct inode), "xfs_vnode",
KM_ZONE_HWALIGN | KM_ZONE_RECLAIM |
KM_ZONE_SPREAD,
xfs_fs_inode_init_once);
extern __uint64_t xfs_max_file_offset(unsigned int);
-extern void xfs_initialize_vnode(struct xfs_mount *mp, bhv_vnode_t *vp,
- struct xfs_inode *ip);
-
extern void xfs_flush_inode(struct xfs_inode *);
extern void xfs_flush_device(struct xfs_inode *);
/*
- * Dedicated vnode inactive/reclaim sync semaphores.
+ * Dedicated vnode inactive/reclaim sync wait queues.
* Prime number of hash buckets since address is used as the key.
*/
#define NVSYNC 37
xfs_do_force_shutdown(ip->i_mount, SHUTDOWN_DEVICE_REQ, f, l);
}
-
-/*
- * Add a reference to a referenced vnode.
- */
-bhv_vnode_t *
-vn_hold(
- bhv_vnode_t *vp)
-{
- struct inode *inode;
-
- XFS_STATS_INC(vn_hold);
-
- inode = igrab(vn_to_inode(vp));
- ASSERT(inode);
-
- return vp;
-}
-
#ifdef XFS_INODE_TRACE
/*
*/
static inline int xfs_icount(struct xfs_inode *ip)
{
- bhv_vnode_t *vp = XFS_ITOV_NULL(ip);
+ struct inode *vp = VFS_I(ip);
if (vp)
return vn_count(vp);
struct xfs_iomap;
struct attrlist_cursor_kern;
-typedef struct inode bhv_vnode_t;
-
-/*
- * Vnode to Linux inode mapping.
- */
-static inline bhv_vnode_t *vn_from_inode(struct inode *inode)
-{
- return inode;
-}
-static inline struct inode *vn_to_inode(bhv_vnode_t *vnode)
-{
- return vnode;
-}
-
/*
* Return values for xfs_inactive. A return value of
* VN_INACTIVE_NOCACHE implies that the file system behavior
extern void vn_iowake(struct xfs_inode *ip);
extern void vn_ioerror(struct xfs_inode *ip, int error, char *f, int l);
-static inline int vn_count(bhv_vnode_t *vp)
+static inline int vn_count(struct inode *vp)
{
- return atomic_read(&vn_to_inode(vp)->i_count);
+ return atomic_read(&vp->i_count);
}
-/*
- * Vnode reference counting functions (and macros for compatibility).
- */
-extern bhv_vnode_t *vn_hold(bhv_vnode_t *);
+#define IHOLD(ip) \
+do { \
+ ASSERT(atomic_read(&VFS_I(ip)->i_count) > 0) ; \
+ atomic_inc(&(VFS_I(ip)->i_count)); \
+ xfs_itrace_hold((ip), __FILE__, __LINE__, (inst_t *)__return_address); \
+} while (0)
-#if defined(XFS_INODE_TRACE)
-#define VN_HOLD(vp) \
- ((void)vn_hold(vp), \
- xfs_itrace_hold(xfs_vtoi(vp), __FILE__, __LINE__, (inst_t *)__return_address))
-#define VN_RELE(vp) \
- (xfs_itrace_rele(xfs_vtoi(vp), __FILE__, __LINE__, (inst_t *)__return_address), \
- iput(vn_to_inode(vp)))
-#else
-#define VN_HOLD(vp) ((void)vn_hold(vp))
-#define VN_RELE(vp) (iput(vn_to_inode(vp)))
-#endif
+#define IRELE(ip) \
+do { \
+ xfs_itrace_rele((ip), __FILE__, __LINE__, (inst_t *)__return_address); \
+ iput(VFS_I(ip)); \
+} while (0)
-static inline bhv_vnode_t *vn_grab(bhv_vnode_t *vp)
+static inline struct inode *vn_grab(struct inode *vp)
{
- struct inode *inode = igrab(vn_to_inode(vp));
- return inode ? vn_from_inode(inode) : NULL;
+ return igrab(vp);
}
/*
* Dealing with bad inodes
*/
-static inline int VN_BAD(bhv_vnode_t *vp)
+static inline int VN_BAD(struct inode *vp)
{
- return is_bad_inode(vn_to_inode(vp));
+ return is_bad_inode(vp);
}
/*
* Extracting atime values in various formats
*/
-static inline void vn_atime_to_bstime(bhv_vnode_t *vp, xfs_bstime_t *bs_atime)
+static inline void vn_atime_to_bstime(struct inode *vp, xfs_bstime_t *bs_atime)
{
bs_atime->tv_sec = vp->i_atime.tv_sec;
bs_atime->tv_nsec = vp->i_atime.tv_nsec;
}
-static inline void vn_atime_to_timespec(bhv_vnode_t *vp, struct timespec *ts)
+static inline void vn_atime_to_timespec(struct inode *vp, struct timespec *ts)
{
*ts = vp->i_atime;
}
-static inline void vn_atime_to_time_t(bhv_vnode_t *vp, time_t *tt)
+static inline void vn_atime_to_time_t(struct inode *vp, time_t *tt)
{
*tt = vp->i_atime.tv_sec;
}
/*
* Some useful predicates.
*/
-#define VN_MAPPED(vp) mapping_mapped(vn_to_inode(vp)->i_mapping)
-#define VN_CACHED(vp) (vn_to_inode(vp)->i_mapping->nrpages)
-#define VN_DIRTY(vp) mapping_tagged(vn_to_inode(vp)->i_mapping, \
+#define VN_MAPPED(vp) mapping_mapped(vp->i_mapping)
+#define VN_CACHED(vp) (vp->i_mapping->nrpages)
+#define VN_DIRTY(vp) mapping_tagged(vp->i_mapping, \
PAGECACHE_TAG_DIRTY)
if (brandnewdquot) {
dqp->dq_flnext = dqp->dq_flprev = dqp;
mutex_init(&dqp->q_qlock);
- initnsema(&dqp->q_flock, 1, "fdq");
sv_init(&dqp->q_pinwait, SV_DEFAULT, "pdq");
+ /*
+ * Because we want to use a counting completion, complete
+ * the flush completion once to allow a single access to
+ * the flush completion without blocking.
+ */
+ init_completion(&dqp->q_flush);
+ complete(&dqp->q_flush);
+
#ifdef XFS_DQUOT_TRACE
- dqp->q_trace = ktrace_alloc(DQUOT_TRACE_SIZE, KM_SLEEP);
+ dqp->q_trace = ktrace_alloc(DQUOT_TRACE_SIZE, KM_NOFS);
xfs_dqtrace_entry(dqp, "DQINIT");
#endif
} else {
ASSERT(! XFS_DQ_IS_ON_FREELIST(dqp));
mutex_destroy(&dqp->q_qlock);
- freesema(&dqp->q_flock);
sv_destroy(&dqp->q_pinwait);
#ifdef XFS_DQUOT_TRACE
* when it unlocks the inode. Since we want to keep the quota
* inode around, we bump the vnode ref count now.
*/
- VN_HOLD(XFS_ITOV(quotip));
+ IHOLD(quotip);
xfs_trans_ijoin(tp, quotip, XFS_ILOCK_EXCL);
nmaps = 1;
int error;
ASSERT(XFS_DQ_IS_LOCKED(dqp));
- ASSERT(XFS_DQ_IS_FLUSH_LOCKED(dqp));
+ ASSERT(!completion_done(&dqp->q_flush));
xfs_dqtrace_entry(dqp, "DQFLUSH");
/*
xfs_dqfunlock(dqp);
}
-
-int
-xfs_qm_dqflock_nowait(
- xfs_dquot_t *dqp)
-{
- int locked;
-
- locked = cpsema(&((dqp)->q_flock));
-
- /* XXX ifdef these out */
- if (locked)
- (dqp)->dq_flags |= XFS_DQ_FLOCKED;
- return (locked);
-}
-
-
int
xfs_qm_dqlock_nowait(
xfs_dquot_t *dqp)
{
- return (mutex_trylock(&((dqp)->q_qlock)));
+ return mutex_trylock(&dqp->q_qlock);
}
void
xfs_dqlock(
xfs_dquot_t *dqp)
{
- mutex_lock(&(dqp->q_qlock));
+ mutex_lock(&dqp->q_qlock);
}
void
* if we're turning off quotas. Basically, we need this flush
* lock, and are willing to block on it.
*/
- if (! xfs_qm_dqflock_nowait(dqp)) {
+ if (!xfs_dqflock_nowait(dqp)) {
/*
* Block on the flush lock after nudging dquot buffer,
* if it is incore.
xfs_qcnt_t q_res_icount; /* total inos allocd+reserved */
xfs_qcnt_t q_res_rtbcount;/* total realtime blks used+reserved */
mutex_t q_qlock; /* quota lock */
- sema_t q_flock; /* flush lock */
+ struct completion q_flush; /* flush completion queue */
uint q_pincount; /* pin count for this dquot */
sv_t q_pinwait; /* sync var for pinning */
#ifdef XFS_DQUOT_TRACE
/*
- * The following three routines simply manage the q_flock
- * semaphore embedded in the dquot. This semaphore synchronizes
- * processes attempting to flush the in-core dquot back to disk.
+ * Manage the q_flush completion queue embedded in the dquot. This completion
+ * queue synchronizes processes attempting to flush the in-core dquot back to
+ * disk.
*/
-#define xfs_dqflock(dqp) { psema(&((dqp)->q_flock), PINOD | PRECALC);\
- (dqp)->dq_flags |= XFS_DQ_FLOCKED; }
-#define xfs_dqfunlock(dqp) { ASSERT(issemalocked(&((dqp)->q_flock))); \
- vsema(&((dqp)->q_flock)); \
- (dqp)->dq_flags &= ~(XFS_DQ_FLOCKED); }
+static inline void xfs_dqflock(xfs_dquot_t *dqp)
+{
+ wait_for_completion(&dqp->q_flush);
+}
+
+static inline int xfs_dqflock_nowait(xfs_dquot_t *dqp)
+{
+ return try_wait_for_completion(&dqp->q_flush);
+}
+
+static inline void xfs_dqfunlock(xfs_dquot_t *dqp)
+{
+ complete(&dqp->q_flush);
+}
-#define XFS_DQ_IS_FLUSH_LOCKED(dqp) (issemalocked(&((dqp)->q_flock)))
#define XFS_DQ_IS_ON_FREELIST(dqp) ((dqp)->dq_flnext != (dqp))
#define XFS_DQ_IS_DIRTY(dqp) ((dqp)->dq_flags & XFS_DQ_DIRTY)
#define XFS_QM_ISUDQ(dqp) ((dqp)->dq_flags & XFS_DQ_USER)
extern int xfs_qm_dqpurge(xfs_dquot_t *);
extern void xfs_qm_dqunpin_wait(xfs_dquot_t *);
extern int xfs_qm_dqlock_nowait(xfs_dquot_t *);
-extern int xfs_qm_dqflock_nowait(xfs_dquot_t *);
extern void xfs_qm_dqflock_pushbuf_wait(xfs_dquot_t *dqp);
extern void xfs_qm_adjust_dqtimers(xfs_mount_t *,
xfs_disk_dquot_t *);
dqp = logitem->qli_dquot;
ASSERT(XFS_DQ_IS_LOCKED(dqp));
- ASSERT(XFS_DQ_IS_FLUSH_LOCKED(dqp));
+ ASSERT(!completion_done(&dqp->q_flush));
/*
* Since we were able to lock the dquot's flush lock and
* inode flush completed and the inode was taken off the AIL.
* So, just get out.
*/
- if (!issemalocked(&(dqp->q_flock)) ||
+ if (completion_done(&dqp->q_flush) ||
((qip->qli_item.li_flags & XFS_LI_IN_AIL) == 0)) {
qip->qli_pushbuf_flag = 0;
xfs_dqunlock(dqp);
if (bp != NULL) {
if (XFS_BUF_ISDELAYWRITE(bp)) {
dopush = ((qip->qli_item.li_flags & XFS_LI_IN_AIL) &&
- issemalocked(&(dqp->q_flock)));
+ !completion_done(&dqp->q_flush));
qip->qli_pushbuf_flag = 0;
xfs_dqunlock(dqp);
return (XFS_ITEM_LOCKED);
retval = XFS_ITEM_SUCCESS;
- if (! xfs_qm_dqflock_nowait(dqp)) {
+ if (!xfs_dqflock_nowait(dqp)) {
/*
* The dquot is already being flushed. It may have been
* flushed delayed write, however, and we don't want to
*/
void
xfs_qm_mount_quotas(
- xfs_mount_t *mp,
- int mfsi_flags)
+ xfs_mount_t *mp)
{
int error = 0;
uint sbf;
/*
* If any of the quotas are not consistent, do a quotacheck.
*/
- if (XFS_QM_NEED_QUOTACHECK(mp) &&
- !(mfsi_flags & XFS_MFSI_NO_QUOTACHECK)) {
+ if (XFS_QM_NEED_QUOTACHECK(mp)) {
error = xfs_qm_quotacheck(mp);
if (error) {
/* Quotacheck failed and disabled quotas. */
xfs_dqtrace_entry(dqp, "FLUSHALL: DQDIRTY");
/* XXX a sentinel would be better */
recl = XFS_QI_MPLRECLAIMS(mp);
- if (! xfs_qm_dqflock_nowait(dqp)) {
+ if (!xfs_dqflock_nowait(dqp)) {
/*
* If we can't grab the flush lock then check
* to see if the dquot has been flushed delayed
/* XXX a sentinel would be better */
recl = XFS_QI_MPLRECLAIMS(mp);
- if (! xfs_qm_dqflock_nowait(dqp)) {
+ if (!xfs_dqflock_nowait(dqp)) {
if (nowait) {
xfs_dqunlock(dqp);
continue;
* Try to grab the flush lock. If this dquot is in the process of
* getting flushed to disk, we don't want to reclaim it.
*/
- if (! xfs_qm_dqflock_nowait(dqp)) {
+ if (!xfs_dqflock_nowait(dqp)) {
xfs_dqunlock(dqp);
dqp = dqp->dq_flnext;
continue;
* Try to grab the flush lock. If this dquot is in the process of
* getting flushed to disk, we don't want to reclaim it.
*/
- if (! xfs_qm_dqflock_nowait(dqp)) {
+ if (!xfs_dqflock_nowait(dqp)) {
xfs_dqunlock(dqp);
continue;
}
#define XFS_QM_RELE(xqm) ((xqm)->qm_nrefs--)
extern void xfs_qm_destroy_quotainfo(xfs_mount_t *);
-extern void xfs_qm_mount_quotas(xfs_mount_t *, int);
+extern void xfs_qm_mount_quotas(xfs_mount_t *);
extern int xfs_qm_quotacheck(xfs_mount_t *);
extern void xfs_qm_unmount_quotadestroy(xfs_mount_t *);
extern int xfs_qm_unmount_quotas(xfs_mount_t *);
* mounting, and get on with the boring life
* without disk quotas.
*/
- xfs_qm_mount_quotas(mp, 0);
+ xfs_qm_mount_quotas(mp);
} else {
/*
* Clear the quota flags, but remember them. This
xfs_qm_endmount(
xfs_mount_t *mp,
uint needquotamount,
- uint quotaflags,
- int mfsi_flags)
+ uint quotaflags)
{
if (needquotamount) {
ASSERT(mp->m_qflags == 0);
mp->m_qflags = quotaflags;
- xfs_qm_mount_quotas(mp, mfsi_flags);
+ xfs_qm_mount_quotas(mp);
}
#if defined(DEBUG) && defined(XFS_LOUD_RECOVERY)
{
xfs_inode_t *ip, *topino;
uint ireclaims;
- bhv_vnode_t *vp;
+ struct inode *vp;
boolean_t vnode_refd;
ASSERT(mp->m_quotainfo);
ip = ip->i_mnext;
continue;
}
- vp = XFS_ITOV_NULL(ip);
+ vp = VFS_I(ip);
if (!vp) {
ASSERT(ip->i_udquot == NULL);
ASSERT(ip->i_gdquot == NULL);
#include <linux/capability.h>
#include <linux/posix_acl_xattr.h>
-STATIC int xfs_acl_setmode(bhv_vnode_t *, xfs_acl_t *, int *);
+STATIC int xfs_acl_setmode(struct inode *, xfs_acl_t *, int *);
STATIC void xfs_acl_filter_mode(mode_t, xfs_acl_t *);
STATIC void xfs_acl_get_endian(xfs_acl_t *);
STATIC int xfs_acl_access(uid_t, gid_t, xfs_acl_t *, mode_t, cred_t *);
STATIC int xfs_acl_invalid(xfs_acl_t *);
STATIC void xfs_acl_sync_mode(mode_t, xfs_acl_t *);
-STATIC void xfs_acl_get_attr(bhv_vnode_t *, xfs_acl_t *, int, int, int *);
-STATIC void xfs_acl_set_attr(bhv_vnode_t *, xfs_acl_t *, int, int *);
-STATIC int xfs_acl_allow_set(bhv_vnode_t *, int);
+STATIC void xfs_acl_get_attr(struct inode *, xfs_acl_t *, int, int, int *);
+STATIC void xfs_acl_set_attr(struct inode *, xfs_acl_t *, int, int *);
+STATIC int xfs_acl_allow_set(struct inode *, int);
kmem_zone_t *xfs_acl_zone;
*/
int
xfs_acl_vhasacl_access(
- bhv_vnode_t *vp)
+ struct inode *vp)
{
int error;
*/
int
xfs_acl_vhasacl_default(
- bhv_vnode_t *vp)
+ struct inode *vp)
{
int error;
int
xfs_acl_vget(
- bhv_vnode_t *vp,
+ struct inode *vp,
void *acl,
size_t size,
int kind)
posix_acl_xattr_header *ext_acl = acl;
int flags = 0;
- VN_HOLD(vp);
if(size) {
if (!(_ACL_ALLOC(xfs_acl))) {
error = ENOMEM;
goto out;
}
if (kind == _ACL_TYPE_ACCESS)
- xfs_acl_sync_mode(xfs_vtoi(vp)->i_d.di_mode, xfs_acl);
+ xfs_acl_sync_mode(XFS_I(vp)->i_d.di_mode, xfs_acl);
error = -posix_acl_xfs_to_xattr(xfs_acl, ext_acl, size);
}
out:
- VN_RELE(vp);
if(xfs_acl)
_ACL_FREE(xfs_acl);
return -error;
int
xfs_acl_vremove(
- bhv_vnode_t *vp,
+ struct inode *vp,
int kind)
{
int error;
- VN_HOLD(vp);
error = xfs_acl_allow_set(vp, kind);
if (!error) {
- error = xfs_attr_remove(xfs_vtoi(vp),
+ error = xfs_attr_remove(XFS_I(vp),
kind == _ACL_TYPE_DEFAULT?
SGI_ACL_DEFAULT: SGI_ACL_FILE,
ATTR_ROOT);
if (error == ENOATTR)
error = 0; /* 'scool */
}
- VN_RELE(vp);
return -error;
}
int
xfs_acl_vset(
- bhv_vnode_t *vp,
+ struct inode *vp,
void *acl,
size_t size,
int kind)
return 0;
}
- VN_HOLD(vp);
error = xfs_acl_allow_set(vp, kind);
/* Incoming ACL exists, set file mode based on its value */
}
out:
- VN_RELE(vp);
_ACL_FREE(xfs_acl);
return -error;
}
STATIC int
xfs_acl_allow_set(
- bhv_vnode_t *vp,
+ struct inode *vp,
int kind)
{
if (vp->i_flags & (S_IMMUTABLE|S_APPEND))
return ENOTDIR;
if (vp->i_sb->s_flags & MS_RDONLY)
return EROFS;
- if (xfs_vtoi(vp)->i_d.di_uid != current->fsuid && !capable(CAP_FOWNER))
+ if (XFS_I(vp)->i_d.di_uid != current->fsuid && !capable(CAP_FOWNER))
return EPERM;
return 0;
}
*/
STATIC void
xfs_acl_get_attr(
- bhv_vnode_t *vp,
+ struct inode *vp,
xfs_acl_t *aclp,
int kind,
int flags,
ASSERT((flags & ATTR_KERNOVAL) ? (aclp == NULL) : 1);
flags |= ATTR_ROOT;
- *error = xfs_attr_get(xfs_vtoi(vp),
+ *error = xfs_attr_get(XFS_I(vp),
kind == _ACL_TYPE_ACCESS ?
SGI_ACL_FILE : SGI_ACL_DEFAULT,
(char *)aclp, &len, flags);
*/
STATIC void
xfs_acl_set_attr(
- bhv_vnode_t *vp,
+ struct inode *vp,
xfs_acl_t *aclp,
int kind,
int *error)
INT_SET(newace->ae_perm, ARCH_CONVERT, ace->ae_perm);
}
INT_SET(newacl->acl_cnt, ARCH_CONVERT, aclp->acl_cnt);
- *error = xfs_attr_set(xfs_vtoi(vp),
+ *error = xfs_attr_set(XFS_I(vp),
kind == _ACL_TYPE_ACCESS ?
SGI_ACL_FILE: SGI_ACL_DEFAULT,
(char *)newacl, len, ATTR_ROOT);
int
xfs_acl_vtoacl(
- bhv_vnode_t *vp,
+ struct inode *vp,
xfs_acl_t *access_acl,
xfs_acl_t *default_acl)
{
if (error)
access_acl->acl_cnt = XFS_ACL_NOT_PRESENT;
else /* We have a good ACL and the file mode, synchronize. */
- xfs_acl_sync_mode(xfs_vtoi(vp)->i_d.di_mode, access_acl);
+ xfs_acl_sync_mode(XFS_I(vp)->i_d.di_mode, access_acl);
}
if (default_acl) {
*/
int
xfs_acl_inherit(
- bhv_vnode_t *vp,
+ struct inode *vp,
mode_t mode,
xfs_acl_t *pdaclp)
{
*/
STATIC int
xfs_acl_setmode(
- bhv_vnode_t *vp,
+ struct inode *vp,
xfs_acl_t *acl,
int *basicperms)
{
* mode. The m:: bits take precedence over the g:: bits.
*/
iattr.ia_valid = ATTR_MODE;
- iattr.ia_mode = xfs_vtoi(vp)->i_d.di_mode;
+ iattr.ia_mode = XFS_I(vp)->i_d.di_mode;
iattr.ia_mode &= ~(S_IRWXU|S_IRWXG|S_IRWXO);
ap = acl->acl_entry;
for (i = 0; i < acl->acl_cnt; ++i) {
if (gap && nomask)
iattr.ia_mode |= gap->ae_perm << 3;
- return xfs_setattr(xfs_vtoi(vp), &iattr, 0, sys_cred);
+ return xfs_setattr(XFS_I(vp), &iattr, 0, sys_cred);
}
/*
(zone) = kmem_zone_init(sizeof(xfs_acl_t), (name))
#define xfs_acl_zone_destroy(zone) kmem_zone_destroy(zone)
-extern int xfs_acl_inherit(bhv_vnode_t *, mode_t mode, xfs_acl_t *);
+extern int xfs_acl_inherit(struct inode *, mode_t mode, xfs_acl_t *);
extern int xfs_acl_iaccess(struct xfs_inode *, mode_t, cred_t *);
-extern int xfs_acl_vtoacl(bhv_vnode_t *, xfs_acl_t *, xfs_acl_t *);
-extern int xfs_acl_vhasacl_access(bhv_vnode_t *);
-extern int xfs_acl_vhasacl_default(bhv_vnode_t *);
-extern int xfs_acl_vset(bhv_vnode_t *, void *, size_t, int);
-extern int xfs_acl_vget(bhv_vnode_t *, void *, size_t, int);
-extern int xfs_acl_vremove(bhv_vnode_t *, int);
+extern int xfs_acl_vtoacl(struct inode *, xfs_acl_t *, xfs_acl_t *);
+extern int xfs_acl_vhasacl_access(struct inode *);
+extern int xfs_acl_vhasacl_default(struct inode *);
+extern int xfs_acl_vset(struct inode *, void *, size_t, int);
+extern int xfs_acl_vget(struct inode *, void *, size_t, int);
+extern int xfs_acl_vremove(struct inode *, int);
#define _ACL_PERM_INVALID(perm) ((perm) & ~(ACL_READ|ACL_WRITE|ACL_EXECUTE))
((__u8*)(pointer))[1] = (((value) ) & 0xff); \
}
-/* define generic INT_ macros */
-
-#define INT_GET(reference,arch) \
- (((arch) == ARCH_NOCONVERT) \
- ? \
- (reference) \
- : \
- INT_SWAP((reference),(reference)) \
- )
-
/* does not return a value */
#define INT_SET(reference,arch,valueref) \
(__builtin_constant_p(valueref) ? \
) \
)
-/* does not return a value */
-#define INT_MOD_EXPR(reference,arch,code) \
- (((arch) == ARCH_NOCONVERT) \
- ? \
- (void)((reference) code) \
- : \
- (void)( \
- (reference) = INT_GET((reference),arch) , \
- ((reference) code), \
- INT_SET(reference, arch, reference) \
- ) \
- )
-
-/* does not return a value */
-#define INT_MOD(reference,arch,delta) \
- (void)( \
- INT_MOD_EXPR(reference,arch,+=(delta)) \
- )
-
-/*
- * INT_COPY - copy a value between two locations with the
- * _same architecture_ but _potentially different sizes_
- *
- * if the types of the two parameters are equal or they are
- * in native architecture, a simple copy is done
- *
- * otherwise, architecture conversions are done
- *
- */
-
-/* does not return a value */
-#define INT_COPY(dst,src,arch) \
- ( \
- ((sizeof(dst) == sizeof(src)) || ((arch) == ARCH_NOCONVERT)) \
- ? \
- (void)((dst) = (src)) \
- : \
- INT_SET(dst, arch, INT_GET(src, arch)) \
- )
-
-/*
- * INT_XLATE - copy a value in either direction between two locations
- * with different architectures
- *
- * dir < 0 - copy from memory to buffer (native to arch)
- * dir > 0 - copy from buffer to memory (arch to native)
- */
-
-/* does not return a value */
-#define INT_XLATE(buf,mem,dir,arch) {\
- ASSERT(dir); \
- if (dir>0) { \
- (mem)=INT_GET(buf, arch); \
- } else { \
- INT_SET(buf, arch, mem); \
- } \
-}
-
/*
* In directories inode numbers are stored as unaligned arrays of unsigned
* 8bit integers on disk.
return(error);
}
+/*
+ * Calculate how many blocks we need for the new attribute,
+ */
+int
+xfs_attr_calc_size(
+ struct xfs_inode *ip,
+ int namelen,
+ int valuelen,
+ int *local)
+{
+ struct xfs_mount *mp = ip->i_mount;
+ int size;
+ int nblks;
+
+ /*
+ * Determine space new attribute will use, and if it would be
+ * "local" or "remote" (note: local != inline).
+ */
+ size = xfs_attr_leaf_newentsize(namelen, valuelen,
+ mp->m_sb.sb_blocksize, local);
+
+ nblks = XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK);
+ if (*local) {
+ if (size > (mp->m_sb.sb_blocksize >> 1)) {
+ /* Double split possible */
+ nblks *= 2;
+ }
+ } else {
+ /*
+ * Out of line attribute, cannot double split, but
+ * make room for the attribute value itself.
+ */
+ uint dblocks = XFS_B_TO_FSB(mp, valuelen);
+ nblks += dblocks;
+ nblks += XFS_NEXTENTADD_SPACE_RES(mp, dblocks, XFS_ATTR_FORK);
+ }
+
+ return nblks;
+}
+
STATIC int
xfs_attr_set_int(xfs_inode_t *dp, struct xfs_name *name,
char *value, int valuelen, int flags)
xfs_fsblock_t firstblock;
xfs_bmap_free_t flist;
int error, err2, committed;
- int local, size;
- uint nblks;
xfs_mount_t *mp = dp->i_mount;
int rsvd = (flags & ATTR_ROOT) != 0;
+ int local;
/*
* Attach the dquots to the inode.
args.whichfork = XFS_ATTR_FORK;
args.op_flags = XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT;
- /*
- * Determine space new attribute will use, and if it would be
- * "local" or "remote" (note: local != inline).
- */
- size = xfs_attr_leaf_newentsize(name->len, valuelen,
- mp->m_sb.sb_blocksize, &local);
-
- nblks = XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK);
- if (local) {
- if (size > (mp->m_sb.sb_blocksize >> 1)) {
- /* Double split possible */
- nblks <<= 1;
- }
- } else {
- uint dblocks = XFS_B_TO_FSB(mp, valuelen);
- /* Out of line attribute, cannot double split, but make
- * room for the attribute value itself.
- */
- nblks += dblocks;
- nblks += XFS_NEXTENTADD_SPACE_RES(mp, dblocks, XFS_ATTR_FORK);
- }
-
/* Size is now blocks for attribute data */
- args.total = nblks;
+ args.total = xfs_attr_calc_size(dp, name->len, valuelen, &local);
/*
* Start our first transaction of the day.
if (rsvd)
args.trans->t_flags |= XFS_TRANS_RESERVE;
- if ((error = xfs_trans_reserve(args.trans, (uint) nblks,
- XFS_ATTRSET_LOG_RES(mp, nblks),
- 0, XFS_TRANS_PERM_LOG_RES,
- XFS_ATTRSET_LOG_COUNT))) {
+ if ((error = xfs_trans_reserve(args.trans, args.total,
+ XFS_ATTRSET_LOG_RES(mp, args.total), 0,
+ XFS_TRANS_PERM_LOG_RES, XFS_ATTRSET_LOG_COUNT))) {
xfs_trans_cancel(args.trans, 0);
return(error);
}
xfs_ilock(dp, XFS_ILOCK_EXCL);
- error = XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, args.trans, dp, nblks, 0,
- rsvd ? XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_FORCE_RES :
- XFS_QMOPT_RES_REGBLKS);
+ error = XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, args.trans, dp, args.total, 0,
+ rsvd ? XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_FORCE_RES :
+ XFS_QMOPT_RES_REGBLKS);
if (error) {
xfs_iunlock(dp, XFS_ILOCK_EXCL);
xfs_trans_cancel(args.trans, XFS_TRANS_RELEASE_LOG_RES);
* Commit the leaf transformation. We'll need another (linked)
* transaction to add the new attribute to the leaf.
*/
- if ((error = xfs_attr_rolltrans(&args.trans, dp)))
+
+ error = xfs_trans_roll(&args.trans, dp);
+ if (error)
goto out;
}
* Commit the current trans (including the inode) and start
* a new one.
*/
- if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+ error = xfs_trans_roll(&args->trans, dp);
+ if (error)
return (error);
/*
* Commit the transaction that added the attr name so that
* later routines can manage their own transactions.
*/
- if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+ error = xfs_trans_roll(&args->trans, dp);
+ if (error)
return (error);
/*
/*
* Commit the remove and start the next trans in series.
*/
- error = xfs_attr_rolltrans(&args->trans, dp);
+ error = xfs_trans_roll(&args->trans, dp);
} else if (args->rmtblkno > 0) {
/*
* Commit the node conversion and start the next
* trans in the chain.
*/
- if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+ error = xfs_trans_roll(&args->trans, dp);
+ if (error)
goto out;
goto restart;
* Commit the leaf addition or btree split and start the next
* trans in the chain.
*/
- if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+ error = xfs_trans_roll(&args->trans, dp);
+ if (error)
goto out;
/*
/*
* Commit and start the next trans in the chain.
*/
- if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+ error = xfs_trans_roll(&args->trans, dp);
+ if (error)
goto out;
} else if (args->rmtblkno > 0) {
/*
* Commit the Btree join operation and start a new trans.
*/
- if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+ error = xfs_trans_roll(&args->trans, dp);
+ if (error)
goto out;
}
/*
* Start the next trans in the chain.
*/
- if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+ error = xfs_trans_roll(&args->trans, dp);
+ if (error)
return (error);
}
/*
* Close out trans and start the next one in the chain.
*/
- if ((error = xfs_attr_rolltrans(&args->trans, args->dp)))
+ error = xfs_trans_roll(&args->trans, args->dp);
+ if (error)
return (error);
}
return(0);
/*
* Overall external interface routines.
*/
+int xfs_attr_calc_size(struct xfs_inode *, int, int, int *);
int xfs_attr_inactive(struct xfs_inode *dp);
int xfs_attr_fetch(struct xfs_inode *, struct xfs_name *, char *, int *, int);
int xfs_attr_rmtval_get(struct xfs_da_args *args);
/*
* Commit the flag value change and start the next trans in series.
*/
- error = xfs_attr_rolltrans(&args->trans, args->dp);
-
- return(error);
+ return xfs_trans_roll(&args->trans, args->dp);
}
/*
/*
* Commit the flag value change and start the next trans in series.
*/
- error = xfs_attr_rolltrans(&args->trans, args->dp);
-
- return(error);
+ return xfs_trans_roll(&args->trans, args->dp);
}
/*
/*
* Commit the flag value change and start the next trans in series.
*/
- error = xfs_attr_rolltrans(&args->trans, args->dp);
+ error = xfs_trans_roll(&args->trans, args->dp);
return(error);
}
/*
* Commit the invalidate and start the next transaction.
*/
- error = xfs_attr_rolltrans(trans, dp);
+ error = xfs_trans_roll(trans, dp);
return (error);
}
/*
* Atomically commit the whole invalidate stuff.
*/
- if ((error = xfs_attr_rolltrans(trans, dp)))
+ error = xfs_trans_roll(trans, dp);
+ if (error)
return (error);
}
/*
* Roll to next transaction.
*/
- if ((error = xfs_attr_rolltrans(trans, dp)))
+ error = xfs_trans_roll(trans, dp);
+ if (error)
return (error);
}
return(0);
}
-
-
-/*
- * Roll from one trans in the sequence of PERMANENT transactions to the next.
- */
-int
-xfs_attr_rolltrans(xfs_trans_t **transp, xfs_inode_t *dp)
-{
- xfs_trans_t *trans;
- unsigned int logres, count;
- int error;
-
- /*
- * Ensure that the inode is always logged.
- */
- trans = *transp;
- xfs_trans_log_inode(trans, dp, XFS_ILOG_CORE);
-
- /*
- * Copy the critical parameters from one trans to the next.
- */
- logres = trans->t_log_res;
- count = trans->t_log_count;
- *transp = xfs_trans_dup(trans);
-
- /*
- * Commit the current transaction.
- * If this commit failed, then it'd just unlock those items that
- * are not marked ihold. That also means that a filesystem shutdown
- * is in progress. The caller takes the responsibility to cancel
- * the duplicate transaction that gets returned.
- */
- if ((error = xfs_trans_commit(trans, 0)))
- return (error);
-
- trans = *transp;
-
- /*
- * Reserve space in the log for th next transaction.
- * This also pushes items in the "AIL", the list of logged items,
- * out to disk if they are taking up space at the tail of the log
- * that we want to use. This requires that either nothing be locked
- * across this call, or that anything that is locked be logged in
- * the prior and the next transactions.
- */
- error = xfs_trans_reserve(trans, 0, logres, 0,
- XFS_TRANS_PERM_LOG_RES, count);
- /*
- * Ensure that the inode is in the new transaction and locked.
- */
- if (!error) {
- xfs_trans_ijoin(trans, dp, XFS_ILOCK_EXCL);
- xfs_trans_ihold(trans, dp);
- }
- return (error);
-
-}
struct xfs_dabuf *leaf2_bp);
int xfs_attr_leaf_newentsize(int namelen, int valuelen, int blocksize,
int *local);
-int xfs_attr_rolltrans(struct xfs_trans **transp, struct xfs_inode *dp);
-
#endif /* __XFS_ATTR_LEAF_H__ */
* XFS bit manipulation routines, used in non-realtime code.
*/
-#ifndef HAVE_ARCH_HIGHBIT
-/*
- * Index of high bit number in byte, -1 for none set, 0..7 otherwise.
- */
-static const char xfs_highbit[256] = {
- -1, 0, 1, 1, 2, 2, 2, 2, /* 00 .. 07 */
- 3, 3, 3, 3, 3, 3, 3, 3, /* 08 .. 0f */
- 4, 4, 4, 4, 4, 4, 4, 4, /* 10 .. 17 */
- 4, 4, 4, 4, 4, 4, 4, 4, /* 18 .. 1f */
- 5, 5, 5, 5, 5, 5, 5, 5, /* 20 .. 27 */
- 5, 5, 5, 5, 5, 5, 5, 5, /* 28 .. 2f */
- 5, 5, 5, 5, 5, 5, 5, 5, /* 30 .. 37 */
- 5, 5, 5, 5, 5, 5, 5, 5, /* 38 .. 3f */
- 6, 6, 6, 6, 6, 6, 6, 6, /* 40 .. 47 */
- 6, 6, 6, 6, 6, 6, 6, 6, /* 48 .. 4f */
- 6, 6, 6, 6, 6, 6, 6, 6, /* 50 .. 57 */
- 6, 6, 6, 6, 6, 6, 6, 6, /* 58 .. 5f */
- 6, 6, 6, 6, 6, 6, 6, 6, /* 60 .. 67 */
- 6, 6, 6, 6, 6, 6, 6, 6, /* 68 .. 6f */
- 6, 6, 6, 6, 6, 6, 6, 6, /* 70 .. 77 */
- 6, 6, 6, 6, 6, 6, 6, 6, /* 78 .. 7f */
- 7, 7, 7, 7, 7, 7, 7, 7, /* 80 .. 87 */
- 7, 7, 7, 7, 7, 7, 7, 7, /* 88 .. 8f */
- 7, 7, 7, 7, 7, 7, 7, 7, /* 90 .. 97 */
- 7, 7, 7, 7, 7, 7, 7, 7, /* 98 .. 9f */
- 7, 7, 7, 7, 7, 7, 7, 7, /* a0 .. a7 */
- 7, 7, 7, 7, 7, 7, 7, 7, /* a8 .. af */
- 7, 7, 7, 7, 7, 7, 7, 7, /* b0 .. b7 */
- 7, 7, 7, 7, 7, 7, 7, 7, /* b8 .. bf */
- 7, 7, 7, 7, 7, 7, 7, 7, /* c0 .. c7 */
- 7, 7, 7, 7, 7, 7, 7, 7, /* c8 .. cf */
- 7, 7, 7, 7, 7, 7, 7, 7, /* d0 .. d7 */
- 7, 7, 7, 7, 7, 7, 7, 7, /* d8 .. df */
- 7, 7, 7, 7, 7, 7, 7, 7, /* e0 .. e7 */
- 7, 7, 7, 7, 7, 7, 7, 7, /* e8 .. ef */
- 7, 7, 7, 7, 7, 7, 7, 7, /* f0 .. f7 */
- 7, 7, 7, 7, 7, 7, 7, 7, /* f8 .. ff */
-};
-#endif
-
-/*
- * xfs_highbit32: get high bit set out of 32-bit argument, -1 if none set.
- */
-inline int
-xfs_highbit32(
- __uint32_t v)
-{
-#ifdef HAVE_ARCH_HIGHBIT
- return highbit32(v);
-#else
- int i;
-
- if (v & 0xffff0000)
- if (v & 0xff000000)
- i = 24;
- else
- i = 16;
- else if (v & 0x0000ffff)
- if (v & 0x0000ff00)
- i = 8;
- else
- i = 0;
- else
- return -1;
- return i + xfs_highbit[(v >> i) & 0xff];
-#endif
-}
-
-/*
- * xfs_lowbit64: get low bit set out of 64-bit argument, -1 if none set.
- */
-int
-xfs_lowbit64(
- __uint64_t v)
-{
- __uint32_t w = (__uint32_t)v;
- int n = 0;
-
- if (w) { /* lower bits */
- n = ffs(w);
- } else { /* upper bits */
- w = (__uint32_t)(v >> 32);
- if (w && (n = ffs(w)))
- n += 32;
- }
- return n - 1;
-}
-
-/*
- * xfs_highbit64: get high bit set out of 64-bit argument, -1 if none set.
- */
-int
-xfs_highbit64(
- __uint64_t v)
-{
- __uint32_t h = (__uint32_t)(v >> 32);
-
- if (h)
- return xfs_highbit32(h) + 32;
- return xfs_highbit32((__uint32_t)v);
-}
-
-
/*
* Return whether bitmap is empty.
* Size is number of words in the bitmap, which is padded to word boundary
}
/* Get high bit set out of 32-bit argument, -1 if none set */
-extern int xfs_highbit32(__uint32_t v);
+static inline int xfs_highbit32(__uint32_t v)
+{
+ return fls(v) - 1;
+}
+
+/* Get high bit set out of 64-bit argument, -1 if none set */
+static inline int xfs_highbit64(__uint64_t v)
+{
+ return fls64(v) - 1;
+}
+
+/* Get low bit set out of 32-bit argument, -1 if none set */
+static inline int xfs_lowbit32(__uint32_t v)
+{
+ unsigned long t = v;
+ return (v) ? find_first_bit(&t, 32) : -1;
+}
/* Get low bit set out of 64-bit argument, -1 if none set */
-extern int xfs_lowbit64(__uint64_t v);
+static inline int xfs_lowbit64(__uint64_t v)
+{
+ __uint32_t w = (__uint32_t)v;
+ int n = 0;
-/* Get high bit set out of 64-bit argument, -1 if none set */
-extern int xfs_highbit64(__uint64_t);
+ if (w) { /* lower bits */
+ n = ffs(w);
+ } else { /* upper bits */
+ w = (__uint32_t)(v >> 32);
+ if (w && (n = ffs(w)))
+ n += 32;
+ }
+ return n - 1;
+}
/* Return whether bitmap is empty (1 == empty) */
extern int xfs_bitmap_empty(uint *map, uint size);
int levelin,
int *count);
-STATIC int
+STATIC void
xfs_bmap_count_leaves(
xfs_ifork_t *ifp,
xfs_extnum_t idx,
int numrecs,
int *count);
-STATIC int
+STATIC void
xfs_bmap_disk_count_leaves(
xfs_extnum_t idx,
xfs_bmbt_block_t *block,
ip->i_d.di_aformat = XFS_DINODE_FMT_EXTENTS;
}
ASSERT(ip->i_d.di_anextents == 0);
- VN_HOLD(XFS_ITOV(ip));
+ IHOLD(ip);
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
switch (ip->i_d.di_format) {
tp = cur->bc_tp;
licp = &tp->t_items;
while (!bp && licp != NULL) {
- if (XFS_LIC_ARE_ALL_FREE(licp)) {
+ if (xfs_lic_are_all_free(licp)) {
licp = licp->lic_next;
continue;
}
xfs_buf_log_item_t *bip;
xfs_buf_t *lbp;
- if (XFS_LIC_ISFREE(licp, i)) {
+ if (xfs_lic_isfree(licp, i)) {
continue;
}
- lidp = XFS_LIC_SLOT(licp, i);
+ lidp = xfs_lic_slot(licp, i);
lip = lidp->lid_item;
if (lip->li_type != XFS_LI_BUF)
continue;
mp = ip->i_mount;
ifp = XFS_IFORK_PTR(ip, whichfork);
if ( XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS ) {
- if (unlikely(xfs_bmap_count_leaves(ifp, 0,
+ xfs_bmap_count_leaves(ifp, 0,
ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t),
- count) < 0)) {
- XFS_ERROR_REPORT("xfs_bmap_count_blocks(1)",
- XFS_ERRLEVEL_LOW, mp);
- return XFS_ERROR(EFSCORRUPTED);
- }
+ count);
return 0;
}
for (;;) {
nextbno = be64_to_cpu(block->bb_rightsib);
numrecs = be16_to_cpu(block->bb_numrecs);
- if (unlikely(xfs_bmap_disk_count_leaves(0,
- block, numrecs, count) < 0)) {
- xfs_trans_brelse(tp, bp);
- XFS_ERROR_REPORT("xfs_bmap_count_tree(2)",
- XFS_ERRLEVEL_LOW, mp);
- return XFS_ERROR(EFSCORRUPTED);
- }
+ xfs_bmap_disk_count_leaves(0, block, numrecs, count);
xfs_trans_brelse(tp, bp);
if (nextbno == NULLFSBLOCK)
break;
/*
* Count leaf blocks given a range of extent records.
*/
-STATIC int
+STATIC void
xfs_bmap_count_leaves(
xfs_ifork_t *ifp,
xfs_extnum_t idx,
xfs_bmbt_rec_host_t *frp = xfs_iext_get_ext(ifp, idx + b);
*count += xfs_bmbt_get_blockcount(frp);
}
- return 0;
}
/*
* Count leaf blocks given a range of extent records originally
* in btree format.
*/
-STATIC int
+STATIC void
xfs_bmap_disk_count_leaves(
xfs_extnum_t idx,
xfs_bmbt_block_t *block,
frp = XFS_BTREE_REC_ADDR(xfs_bmbt, block, idx + b);
*count += xfs_bmbt_disk_get_blockcount(frp);
}
- return 0;
}
/*
* Btree magic numbers.
*/
-const __uint32_t xfs_magics[XFS_BTNUM_MAX] =
-{
+const __uint32_t xfs_magics[XFS_BTNUM_MAX] = {
XFS_ABTB_MAGIC, XFS_ABTC_MAGIC, XFS_BMAP_MAGIC, XFS_IBT_MAGIC
};
-/*
- * Prototypes for internal routines.
- */
-
-/*
- * Checking routine: return maxrecs for the block.
- */
-STATIC int /* number of records fitting in block */
-xfs_btree_maxrecs(
- xfs_btree_cur_t *cur, /* btree cursor */
- xfs_btree_block_t *block);/* generic btree block pointer */
-
-/*
- * Internal routines.
- */
-
-/*
- * Retrieve the block pointer from the cursor at the given level.
- * This may be a bmap btree root or from a buffer.
- */
-STATIC xfs_btree_block_t * /* generic btree block pointer */
-xfs_btree_get_block(
- xfs_btree_cur_t *cur, /* btree cursor */
- int level, /* level in btree */
- struct xfs_buf **bpp); /* buffer containing the block */
-
/*
* Checking routine: return maxrecs for the block.
*/
return 0;
}
-/*
- * Change the cursor to point to the first record at the given level.
- * Other levels are unaffected.
- */
-int /* success=1, failure=0 */
-xfs_btree_firstrec(
- xfs_btree_cur_t *cur, /* btree cursor */
- int level) /* level to change */
-{
- xfs_btree_block_t *block; /* generic btree block pointer */
- xfs_buf_t *bp; /* buffer containing block */
-
- /*
- * Get the block pointer for this level.
- */
- block = xfs_btree_get_block(cur, level, &bp);
- xfs_btree_check_block(cur, block, level, bp);
- /*
- * It's empty, there is no such record.
- */
- if (!block->bb_h.bb_numrecs)
- return 0;
- /*
- * Set the ptr value to 1, that's the first record/key.
- */
- cur->bc_ptrs[level] = 1;
- return 1;
-}
-
/*
* Retrieve the block pointer from the cursor at the given level.
* This may be a bmap btree root or from a buffer.
cur->bc_private.a.agbp = agbp;
cur->bc_private.a.agno = agno;
break;
+ case XFS_BTNUM_INO:
+ /*
+ * Inode allocation btree fields.
+ */
+ cur->bc_private.a.agbp = agbp;
+ cur->bc_private.a.agno = agno;
+ break;
case XFS_BTNUM_BMAP:
/*
* Bmap btree fields.
cur->bc_private.b.flags = 0;
cur->bc_private.b.whichfork = whichfork;
break;
- case XFS_BTNUM_INO:
- /*
- * Inode allocation btree fields.
- */
- cur->bc_private.i.agbp = agbp;
- cur->bc_private.i.agno = agno;
- break;
default:
ASSERT(0);
}
return be32_to_cpu(block->bb_u.s.bb_rightsib) == NULLAGBLOCK;
}
+/*
+ * Change the cursor to point to the first record at the given level.
+ * Other levels are unaffected.
+ */
+int /* success=1, failure=0 */
+xfs_btree_firstrec(
+ xfs_btree_cur_t *cur, /* btree cursor */
+ int level) /* level to change */
+{
+ xfs_btree_block_t *block; /* generic btree block pointer */
+ xfs_buf_t *bp; /* buffer containing block */
+
+ /*
+ * Get the block pointer for this level.
+ */
+ block = xfs_btree_get_block(cur, level, &bp);
+ xfs_btree_check_block(cur, block, level, bp);
+ /*
+ * It's empty, there is no such record.
+ */
+ if (!block->bb_h.bb_numrecs)
+ return 0;
+ /*
+ * Set the ptr value to 1, that's the first record/key.
+ */
+ cur->bc_ptrs[level] = 1;
+ return 1;
+}
+
/*
* Change the cursor to point to the last record in the current block
* at the given level. Other levels are unaffected.
case XFS_BTNUM_INO:
i = XFS_BUF_TO_INOBT_BLOCK(cur->bc_bufs[lev]);
if ((lr & XFS_BTCUR_LEFTRA) && be32_to_cpu(i->bb_leftsib) != NULLAGBLOCK) {
- xfs_btree_reada_bufs(cur->bc_mp, cur->bc_private.i.agno,
+ xfs_btree_reada_bufs(cur->bc_mp, cur->bc_private.a.agno,
be32_to_cpu(i->bb_leftsib), 1);
rval++;
}
if ((lr & XFS_BTCUR_RIGHTRA) && be32_to_cpu(i->bb_rightsib) != NULLAGBLOCK) {
- xfs_btree_reada_bufs(cur->bc_mp, cur->bc_private.i.agno,
+ xfs_btree_reada_bufs(cur->bc_mp, cur->bc_private.a.agno,
be32_to_cpu(i->bb_rightsib), 1);
rval++;
}
__uint8_t bc_blocklog; /* log2(blocksize) of btree blocks */
xfs_btnum_t bc_btnum; /* identifies which btree type */
union {
- struct { /* needed for BNO, CNT */
- struct xfs_buf *agbp; /* agf buffer pointer */
+ struct { /* needed for BNO, CNT, INO */
+ struct xfs_buf *agbp; /* agf/agi buffer pointer */
xfs_agnumber_t agno; /* ag number */
} a;
struct { /* needed for BMAP */
char flags; /* flags */
#define XFS_BTCUR_BPRV_WASDEL 1 /* was delayed */
} b;
- struct { /* needed for INO */
- struct xfs_buf *agbp; /* agi buffer pointer */
- xfs_agnumber_t agno; /* ag number */
- } i;
} bc_private; /* per-btree type data */
} xfs_btree_cur_t;
bip->bli_format.blf_len = (ushort)BTOBB(XFS_BUF_COUNT(bp));
bip->bli_format.blf_map_size = map_size;
#ifdef XFS_BLI_TRACE
- bip->bli_trace = ktrace_alloc(XFS_BLI_TRACE_SIZE, KM_SLEEP);
+ bip->bli_trace = ktrace_alloc(XFS_BLI_TRACE_SIZE, KM_NOFS);
#endif
#ifdef XFS_TRANS_DEBUG
anyway. */
XFS_BUF_SET_BRELSE_FUNC(bp,xfs_buf_error_relse);
XFS_BUF_DONE(bp);
- XFS_BUF_V_IODONESEMA(bp);
+ XFS_BUF_FINISH_IOWAIT(bp);
}
return;
}
xfs_swapext_t *sxp)
{
xfs_mount_t *mp;
- xfs_inode_t *ips[2];
xfs_trans_t *tp;
xfs_bstat_t *sbp = &sxp->sx_stat;
- bhv_vnode_t *vp, *tvp;
xfs_ifork_t *tempifp, *ifp, *tifp;
int ilf_fields, tilf_fields;
static uint lock_flags = XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL;
}
sbp = &sxp->sx_stat;
- vp = XFS_ITOV(ip);
- tvp = XFS_ITOV(tip);
-
- /* Lock in i_ino order */
- if (ip->i_ino < tip->i_ino) {
- ips[0] = ip;
- ips[1] = tip;
- } else {
- ips[0] = tip;
- ips[1] = ip;
- }
- xfs_lock_inodes(ips, 2, lock_flags);
+ xfs_lock_two_inodes(ip, tip, lock_flags);
locked = 1;
/* Verify that both files have the same format */
goto error0;
}
- if (VN_CACHED(tvp) != 0) {
+ if (VN_CACHED(VFS_I(tip)) != 0) {
xfs_inval_cached_trace(tip, 0, -1, 0, -1);
error = xfs_flushinval_pages(tip, 0, -1,
FI_REMAPF_LOCKED);
}
/* Verify O_DIRECT for ftmp */
- if (VN_CACHED(tvp) != 0) {
+ if (VN_CACHED(VFS_I(tip)) != 0) {
error = XFS_ERROR(EINVAL);
goto error0;
}
* vop_read (or write in the case of autogrow) they block on the iolock
* until we have switched the extents.
*/
- if (VN_MAPPED(vp)) {
+ if (VN_MAPPED(VFS_I(ip))) {
error = XFS_ERROR(EBUSY);
goto error0;
}
locked = 0;
goto error0;
}
- xfs_lock_inodes(ips, 2, XFS_ILOCK_EXCL);
+ xfs_lock_two_inodes(ip, tip, XFS_ILOCK_EXCL);
/*
* Count the number of extended attribute blocks
break;
}
- /*
- * Increment vnode ref counts since xfs_trans_commit &
- * xfs_trans_cancel will both unlock the inodes and
- * decrement the associated ref counts.
- */
- VN_HOLD(vp);
- VN_HOLD(tvp);
+ IHOLD(ip);
xfs_trans_ijoin(tp, ip, lock_flags);
+
+ IHOLD(tip);
xfs_trans_ijoin(tp, tip, lock_flags);
xfs_trans_log_inode(tp, ip, ilf_fields);
}
return e;
}
-#endif
-
-#if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
int xfs_etest[XFS_NUM_INJECT_ERROR];
int64_t xfs_etest_fsid[XFS_NUM_INJECT_ERROR];
return 0;
}
-#endif /* DEBUG || INDUCE_IO_ERROR */
+#endif /* DEBUG */
static void
xfs_fs_vcmn_err(int level, xfs_mount_t *mp, char *fmt, va_list ap)
#define XFS_RANDOM_DIOWRITE_IOERR (XFS_RANDOM_DEFAULT/10)
#define XFS_RANDOM_BMAPIFORMAT XFS_RANDOM_DEFAULT
-#if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
+#ifdef DEBUG
extern int xfs_error_test(int, int *, char *, int, char *, unsigned long);
#define XFS_NUM_INJECT_ERROR 10
-
-#ifdef __ANSI_CPP__
-#define XFS_TEST_ERROR(expr, mp, tag, rf) \
- ((expr) || \
- xfs_error_test((tag), (mp)->m_fixedfsid, #expr, __LINE__, __FILE__, \
- (rf)))
-#else
#define XFS_TEST_ERROR(expr, mp, tag, rf) \
((expr) || \
xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \
(rf)))
-#endif /* __ANSI_CPP__ */
extern int xfs_errortag_add(int error_tag, xfs_mount_t *mp);
extern int xfs_errortag_clearall(xfs_mount_t *mp, int loud);
#define XFS_TEST_ERROR(expr, mp, tag, rf) (expr)
#define xfs_errortag_add(tag, mp) (ENOSYS)
#define xfs_errortag_clearall(mp, loud) (ENOSYS)
-#endif /* (DEBUG || INDUCE_IO_ERROR) */
+#endif /* DEBUG */
/*
* XFS panic tags -- allow a call to xfs_cmn_err() be turned into
if (!item_zone)
return -ENOMEM;
#ifdef XFS_FILESTREAMS_TRACE
- xfs_filestreams_trace_buf = ktrace_alloc(XFS_FSTRM_KTRACE_SIZE, KM_SLEEP);
+ xfs_filestreams_trace_buf = ktrace_alloc(XFS_FSTRM_KTRACE_SIZE, KM_NOFS);
#endif
return 0;
}
* then we can get rid of this level.
*/
if (numrecs == 1 && level > 0) {
- agbp = cur->bc_private.i.agbp;
+ agbp = cur->bc_private.a.agbp;
agi = XFS_BUF_TO_AGI(agbp);
/*
* pp is still set to the first pointer in the block.
* Free the block.
*/
if ((error = xfs_free_extent(cur->bc_tp,
- XFS_AGB_TO_FSB(mp, cur->bc_private.i.agno, bno), 1)))
+ XFS_AGB_TO_FSB(mp, cur->bc_private.a.agno, bno), 1)))
return error;
xfs_trans_binval(cur->bc_tp, bp);
xfs_ialloc_log_agi(cur->bc_tp, agbp,
rrecs = be16_to_cpu(right->bb_numrecs);
rbp = bp;
if ((error = xfs_btree_read_bufs(mp, cur->bc_tp,
- cur->bc_private.i.agno, lbno, 0, &lbp,
+ cur->bc_private.a.agno, lbno, 0, &lbp,
XFS_INO_BTREE_REF)))
return error;
left = XFS_BUF_TO_INOBT_BLOCK(lbp);
lrecs = be16_to_cpu(left->bb_numrecs);
lbp = bp;
if ((error = xfs_btree_read_bufs(mp, cur->bc_tp,
- cur->bc_private.i.agno, rbno, 0, &rbp,
+ cur->bc_private.a.agno, rbno, 0, &rbp,
XFS_INO_BTREE_REF)))
return error;
right = XFS_BUF_TO_INOBT_BLOCK(rbp);
xfs_buf_t *rrbp;
if ((error = xfs_btree_read_bufs(mp, cur->bc_tp,
- cur->bc_private.i.agno, be32_to_cpu(left->bb_rightsib), 0,
+ cur->bc_private.a.agno, be32_to_cpu(left->bb_rightsib), 0,
&rrbp, XFS_INO_BTREE_REF)))
return error;
rrblock = XFS_BUF_TO_INOBT_BLOCK(rrbp);
* Free the deleting block.
*/
if ((error = xfs_free_extent(cur->bc_tp, XFS_AGB_TO_FSB(mp,
- cur->bc_private.i.agno, rbno), 1)))
+ cur->bc_private.a.agno, rbno), 1)))
return error;
xfs_trans_binval(cur->bc_tp, rbp);
/*
{
xfs_agi_t *agi; /* a.g. inode header */
- agi = XFS_BUF_TO_AGI(cur->bc_private.i.agbp);
+ agi = XFS_BUF_TO_AGI(cur->bc_private.a.agbp);
agno = be32_to_cpu(agi->agi_seqno);
agbno = be32_to_cpu(agi->agi_root);
}
* Set up the left neighbor as "left".
*/
if ((error = xfs_btree_read_bufs(cur->bc_mp, cur->bc_tp,
- cur->bc_private.i.agno, be32_to_cpu(right->bb_leftsib),
+ cur->bc_private.a.agno, be32_to_cpu(right->bb_leftsib),
0, &lbp, XFS_INO_BTREE_REF)))
return error;
left = XFS_BUF_TO_INOBT_BLOCK(lbp);
/*
* Get a block & a buffer.
*/
- agi = XFS_BUF_TO_AGI(cur->bc_private.i.agbp);
+ agi = XFS_BUF_TO_AGI(cur->bc_private.a.agbp);
args.tp = cur->bc_tp;
args.mp = cur->bc_mp;
- args.fsbno = XFS_AGB_TO_FSB(args.mp, cur->bc_private.i.agno,
+ args.fsbno = XFS_AGB_TO_FSB(args.mp, cur->bc_private.a.agno,
be32_to_cpu(agi->agi_root));
args.mod = args.minleft = args.alignment = args.total = args.wasdel =
args.isfl = args.userdata = args.minalignslop = 0;
*/
agi->agi_root = cpu_to_be32(args.agbno);
be32_add_cpu(&agi->agi_level, 1);
- xfs_ialloc_log_agi(args.tp, cur->bc_private.i.agbp,
+ xfs_ialloc_log_agi(args.tp, cur->bc_private.a.agbp,
XFS_AGI_ROOT | XFS_AGI_LEVEL);
/*
* At the previous root level there are now two blocks: the old
* Set up the right neighbor as "right".
*/
if ((error = xfs_btree_read_bufs(cur->bc_mp, cur->bc_tp,
- cur->bc_private.i.agno, be32_to_cpu(left->bb_rightsib),
+ cur->bc_private.a.agno, be32_to_cpu(left->bb_rightsib),
0, &rbp, XFS_INO_BTREE_REF)))
return error;
right = XFS_BUF_TO_INOBT_BLOCK(rbp);
* Allocate the new block.
* If we can't do it, we're toast. Give up.
*/
- args.fsbno = XFS_AGB_TO_FSB(args.mp, cur->bc_private.i.agno, lbno);
+ args.fsbno = XFS_AGB_TO_FSB(args.mp, cur->bc_private.a.agno, lbno);
args.mod = args.minleft = args.alignment = args.total = args.wasdel =
args.isfl = args.userdata = args.minalignslop = 0;
args.minlen = args.maxlen = args.prod = 1;
agbno = be32_to_cpu(*XFS_INOBT_PTR_ADDR(block, cur->bc_ptrs[lev], cur));
if ((error = xfs_btree_read_bufs(cur->bc_mp, cur->bc_tp,
- cur->bc_private.i.agno, agbno, 0, &bp,
+ cur->bc_private.a.agno, agbno, 0, &bp,
XFS_INO_BTREE_REF)))
return error;
lev--;
agbno = be32_to_cpu(*XFS_INOBT_PTR_ADDR(block, cur->bc_ptrs[lev], cur));
if ((error = xfs_btree_read_bufs(cur->bc_mp, cur->bc_tp,
- cur->bc_private.i.agno, agbno, 0, &bp,
+ cur->bc_private.a.agno, agbno, 0, &bp,
XFS_INO_BTREE_REF)))
return error;
lev--;
mrlock_init(&ip->i_iolock, MRLOCK_BARRIER, "xfsio", ip->i_ino);
init_waitqueue_head(&ip->i_ipin_wait);
atomic_set(&ip->i_pincount, 0);
- initnsema(&ip->i_flock, 1, "xfsfino");
+
+ /*
+ * Because we want to use a counting completion, complete
+ * the flush completion once to allow a single access to
+ * the flush completion without blocking.
+ */
+ init_completion(&ip->i_flush);
+ complete(&ip->i_flush);
if (lock_flags)
xfs_ilock(ip, lock_flags);
xfs_iflags_set(ip, XFS_IMODIFIED);
*ipp = ip;
+ /*
+ * Set up the Linux with the Linux inode.
+ */
+ ip->i_vnode = inode;
+ inode->i_private = ip;
+
/*
* If we have a real type for an on-disk inode, we can set ops(&unlock)
* now. If it's a new inode being created, xfs_ialloc will handle it.
*/
- xfs_initialize_vnode(mp, inode, ip);
+ if (ip->i_d.di_mode != 0)
+ xfs_setup_inode(ip);
return 0;
}
* Special iput for brand-new inodes that are still locked
*/
void
-xfs_iput_new(xfs_inode_t *ip,
- uint lock_flags)
+xfs_iput_new(
+ xfs_inode_t *ip,
+ uint lock_flags)
{
- struct inode *inode = ip->i_vnode;
+ struct inode *inode = VFS_I(ip);
xfs_itrace_entry(ip);
}
#endif
-/*
- * The following three routines simply manage the i_flock
- * semaphore embedded in the inode. This semaphore synchronizes
- * processes attempting to flush the in-core inode back to disk.
- */
-void
-xfs_iflock(xfs_inode_t *ip)
-{
- psema(&(ip->i_flock), PINOD|PLTWAIT);
-}
-
-int
-xfs_iflock_nowait(xfs_inode_t *ip)
-{
- return (cpsema(&(ip->i_flock)));
-}
-
-void
-xfs_ifunlock(xfs_inode_t *ip)
-{
- ASSERT(issemalocked(&(ip->i_flock)));
- vsema(&(ip->i_flock));
-}
xfs_validate_extents(ifp, nex, XFS_EXTFMT_INODE(ip));
for (i = 0; i < nex; i++, dp++) {
xfs_bmbt_rec_host_t *ep = xfs_iext_get_ext(ifp, i);
- ep->l0 = be64_to_cpu(get_unaligned(&dp->l0));
- ep->l1 = be64_to_cpu(get_unaligned(&dp->l1));
+ ep->l0 = get_unaligned_be64(&dp->l0);
+ ep->l1 = get_unaligned_be64(&dp->l1);
}
XFS_BMAP_TRACE_EXLIST(ip, nex, whichfork);
if (whichfork != XFS_DATA_FORK ||
* Do this before xfs_iformat in case it adds entries.
*/
#ifdef XFS_INODE_TRACE
- ip->i_trace = ktrace_alloc(INODE_TRACE_SIZE, KM_SLEEP);
+ ip->i_trace = ktrace_alloc(INODE_TRACE_SIZE, KM_NOFS);
#endif
#ifdef XFS_BMAP_TRACE
- ip->i_xtrace = ktrace_alloc(XFS_BMAP_KTRACE_SIZE, KM_SLEEP);
+ ip->i_xtrace = ktrace_alloc(XFS_BMAP_KTRACE_SIZE, KM_NOFS);
#endif
#ifdef XFS_BMBT_TRACE
- ip->i_btrace = ktrace_alloc(XFS_BMBT_KTRACE_SIZE, KM_SLEEP);
+ ip->i_btrace = ktrace_alloc(XFS_BMBT_KTRACE_SIZE, KM_NOFS);
#endif
#ifdef XFS_RW_TRACE
- ip->i_rwtrace = ktrace_alloc(XFS_RW_KTRACE_SIZE, KM_SLEEP);
+ ip->i_rwtrace = ktrace_alloc(XFS_RW_KTRACE_SIZE, KM_NOFS);
#endif
#ifdef XFS_ILOCK_TRACE
- ip->i_lock_trace = ktrace_alloc(XFS_ILOCK_KTRACE_SIZE, KM_SLEEP);
+ ip->i_lock_trace = ktrace_alloc(XFS_ILOCK_KTRACE_SIZE, KM_NOFS);
#endif
#ifdef XFS_DIR2_TRACE
- ip->i_dir_trace = ktrace_alloc(XFS_DIR2_KTRACE_SIZE, KM_SLEEP);
+ ip->i_dir_trace = ktrace_alloc(XFS_DIR2_KTRACE_SIZE, KM_NOFS);
#endif
/*
{
xfs_ino_t ino;
xfs_inode_t *ip;
- bhv_vnode_t *vp;
uint flags;
int error;
+ timespec_t tv;
/*
* Call the space management code to pick
}
ASSERT(ip != NULL);
- vp = XFS_ITOV(ip);
ip->i_d.di_mode = (__uint16_t)mode;
ip->i_d.di_onlink = 0;
ip->i_d.di_nlink = nlink;
ip->i_size = 0;
ip->i_d.di_nextents = 0;
ASSERT(ip->i_d.di_nblocks == 0);
- xfs_ichgtime(ip, XFS_ICHGTIME_CHG|XFS_ICHGTIME_ACC|XFS_ICHGTIME_MOD);
+
+ nanotime(&tv);
+ ip->i_d.di_mtime.t_sec = (__int32_t)tv.tv_sec;
+ ip->i_d.di_mtime.t_nsec = (__int32_t)tv.tv_nsec;
+ ip->i_d.di_atime = ip->i_d.di_mtime;
+ ip->i_d.di_ctime = ip->i_d.di_mtime;
+
/*
* di_gen will have been taken care of in xfs_iread.
*/
xfs_trans_log_inode(tp, ip, flags);
/* now that we have an i_mode we can setup inode ops and unlock */
- xfs_initialize_vnode(tp->t_mountp, vp, ip);
+ xfs_setup_inode(ip);
*ipp = ip;
return 0;
xfs_fsize_t last_byte;
xfs_off_t toss_start;
xfs_mount_t *mp;
- bhv_vnode_t *vp;
int error = 0;
ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
(flags == XFS_ITRUNC_MAYBE));
mp = ip->i_mount;
- vp = XFS_ITOV(ip);
/* wait for the completion of any pending DIOs */
if (new_size < ip->i_size)
#ifdef DEBUG
if (new_size == 0) {
- ASSERT(VN_CACHED(vp) == 0);
+ ASSERT(VN_CACHED(VFS_I(ip)) == 0);
}
#endif
return error;
xfs_idestroy_fork(ip, XFS_ATTR_FORK);
mrfree(&ip->i_lock);
mrfree(&ip->i_iolock);
- freesema(&ip->i_flock);
#ifdef XFS_INODE_TRACE
ktrace_free(ip->i_trace);
/*
* xfs_iflush() will write a modified inode's changes out to the
* inode's on disk home. The caller must have the inode lock held
- * in at least shared mode and the inode flush semaphore must be
- * held as well. The inode lock will still be held upon return from
+ * in at least shared mode and the inode flush completion must be
+ * active as well. The inode lock will still be held upon return from
* the call and the caller is free to unlock it.
- * The inode flush lock will be unlocked when the inode reaches the disk.
+ * The inode flush will be completed when the inode reaches the disk.
* The flags indicate how the inode's buffer should be written out.
*/
int
XFS_STATS_INC(xs_iflush_count);
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
- ASSERT(issemalocked(&(ip->i_flock)));
+ ASSERT(!completion_done(&ip->i_flush));
ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
ip->i_d.di_nextents > ip->i_df.if_ext_max);
#endif
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
- ASSERT(issemalocked(&(ip->i_flock)));
+ ASSERT(!completion_done(&ip->i_flush));
ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
ip->i_d.di_nextents > ip->i_df.if_ext_max);
xfs_mount_t *mp)
{
xfs_inode_t *ip;
- bhv_vnode_t *vp;
again:
XFS_MOUNT_ILOCK(mp);
continue;
}
- vp = XFS_ITOV_NULL(ip);
- if (!vp) {
+ if (!VFS_I(ip)) {
XFS_MOUNT_IUNLOCK(mp);
xfs_finish_reclaim(ip, 0, XFS_IFLUSH_ASYNC);
goto again;
}
- ASSERT(vn_count(vp) == 0);
+ ASSERT(vn_count(VFS_I(ip)) == 0);
ip = ip->i_mnext;
} while (ip != mp->m_inodes);
* (all extents past */
if (nex2) {
byte_diff = nex2 * sizeof(xfs_bmbt_rec_t);
- nex2_ep = (xfs_bmbt_rec_t *) kmem_alloc(byte_diff, KM_SLEEP);
+ nex2_ep = (xfs_bmbt_rec_t *) kmem_alloc(byte_diff, KM_NOFS);
memmove(nex2_ep, &erp->er_extbuf[idx], byte_diff);
erp->er_extcount -= nex2;
xfs_iext_irec_update_extoffs(ifp, erp_idx + 1, -nex2);
ifp->if_u1.if_extents =
kmem_realloc(ifp->if_u1.if_extents,
rnew_size,
- ifp->if_real_bytes,
- KM_SLEEP);
+ ifp->if_real_bytes, KM_NOFS);
}
if (rnew_size > ifp->if_real_bytes) {
memset(&ifp->if_u1.if_extents[ifp->if_bytes /
xfs_ifork_t *ifp, /* inode fork pointer */
int new_size) /* number of extents in file */
{
- ifp->if_u1.if_extents = kmem_alloc(new_size, KM_SLEEP);
+ ifp->if_u1.if_extents = kmem_alloc(new_size, KM_NOFS);
memset(ifp->if_u1.if_extents, 0, new_size);
if (ifp->if_bytes) {
memcpy(ifp->if_u1.if_extents, ifp->if_u2.if_inline_ext,
} else {
ifp->if_u1.if_ext_irec = (xfs_ext_irec_t *)
kmem_realloc(ifp->if_u1.if_ext_irec,
- new_size, size, KM_SLEEP);
+ new_size, size, KM_NOFS);
}
}
nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
ASSERT(nextents <= XFS_LINEAR_EXTS);
- erp = (xfs_ext_irec_t *)
- kmem_alloc(sizeof(xfs_ext_irec_t), KM_SLEEP);
+ erp = kmem_alloc(sizeof(xfs_ext_irec_t), KM_NOFS);
if (nextents == 0) {
- ifp->if_u1.if_extents = kmem_alloc(XFS_IEXT_BUFSZ, KM_SLEEP);
+ ifp->if_u1.if_extents = kmem_alloc(XFS_IEXT_BUFSZ, KM_NOFS);
} else if (!ifp->if_real_bytes) {
xfs_iext_inline_to_direct(ifp, XFS_IEXT_BUFSZ);
} else if (ifp->if_real_bytes < XFS_IEXT_BUFSZ) {
/* Initialize new extent record */
erp = ifp->if_u1.if_ext_irec;
- erp[erp_idx].er_extbuf = kmem_alloc(XFS_IEXT_BUFSZ, KM_SLEEP);
+ erp[erp_idx].er_extbuf = kmem_alloc(XFS_IEXT_BUFSZ, KM_NOFS);
ifp->if_real_bytes = nlists * XFS_IEXT_BUFSZ;
memset(erp[erp_idx].er_extbuf, 0, XFS_IEXT_BUFSZ);
erp[erp_idx].er_extcount = 0;
* Flags for xfs_ichgtime().
*/
#define XFS_ICHGTIME_MOD 0x1 /* data fork modification timestamp */
-#define XFS_ICHGTIME_ACC 0x2 /* data fork access timestamp */
-#define XFS_ICHGTIME_CHG 0x4 /* inode field change timestamp */
+#define XFS_ICHGTIME_CHG 0x2 /* inode field change timestamp */
/*
* Per-fork incore inode flags.
struct xfs_inode *i_mprev; /* ptr to prev inode */
struct xfs_mount *i_mount; /* fs mount struct ptr */
struct list_head i_reclaim; /* reclaim list */
- bhv_vnode_t *i_vnode; /* vnode backpointer */
+ struct inode *i_vnode; /* vnode backpointer */
struct xfs_dquot *i_udquot; /* user dquot */
struct xfs_dquot *i_gdquot; /* group dquot */
struct xfs_inode_log_item *i_itemp; /* logging information */
mrlock_t i_lock; /* inode lock */
mrlock_t i_iolock; /* inode IO lock */
- sema_t i_flock; /* inode flush lock */
+ struct completion i_flush; /* inode flush completion q */
atomic_t i_pincount; /* inode pin count */
wait_queue_head_t i_ipin_wait; /* inode pinning wait queue */
spinlock_t i_flags_lock; /* inode i_flags lock */
#define XFS_ISIZE(ip) (((ip)->i_d.di_mode & S_IFMT) == S_IFREG) ? \
(ip)->i_size : (ip)->i_d.di_size;
+/* Convert from vfs inode to xfs inode */
+static inline struct xfs_inode *XFS_I(struct inode *inode)
+{
+ return (struct xfs_inode *)inode->i_private;
+}
+
+/* convert from xfs inode to vfs inode */
+static inline struct inode *VFS_I(struct xfs_inode *ip)
+{
+ return (struct inode *)ip->i_vnode;
+}
+
/*
* i_flags helper functions
*/
#define XFS_ITRUNC_DEFINITE 0x1
#define XFS_ITRUNC_MAYBE 0x2
-#define XFS_ITOV(ip) ((ip)->i_vnode)
-#define XFS_ITOV_NULL(ip) ((ip)->i_vnode)
-
/*
* For multiple groups support: if S_ISGID bit is set in the parent
* directory, group of new file is set to that of the parent, and
void xfs_iunlock(xfs_inode_t *, uint);
void xfs_ilock_demote(xfs_inode_t *, uint);
int xfs_isilocked(xfs_inode_t *, uint);
-void xfs_iflock(xfs_inode_t *);
-int xfs_iflock_nowait(xfs_inode_t *);
uint xfs_ilock_map_shared(xfs_inode_t *);
void xfs_iunlock_map_shared(xfs_inode_t *, uint);
-void xfs_ifunlock(xfs_inode_t *);
void xfs_ireclaim(xfs_inode_t *);
int xfs_finish_reclaim(xfs_inode_t *, int, int);
int xfs_finish_reclaim_all(struct xfs_mount *, int);
void xfs_ichgtime(xfs_inode_t *, int);
xfs_fsize_t xfs_file_last_byte(xfs_inode_t *);
void xfs_lock_inodes(xfs_inode_t **, int, uint);
+void xfs_lock_two_inodes(xfs_inode_t *, xfs_inode_t *, uint);
void xfs_synchronize_atime(xfs_inode_t *);
void xfs_mark_inode_dirty_sync(xfs_inode_t *);
extern struct kmem_zone *xfs_inode_zone;
extern struct kmem_zone *xfs_ili_zone;
+/*
+ * Manage the i_flush queue embedded in the inode. This completion
+ * queue synchronizes processes attempting to flush the in-core
+ * inode back to disk.
+ */
+static inline void xfs_iflock(xfs_inode_t *ip)
+{
+ wait_for_completion(&ip->i_flush);
+}
+
+static inline int xfs_iflock_nowait(xfs_inode_t *ip)
+{
+ return try_wait_for_completion(&ip->i_flush);
+}
+
+static inline void xfs_ifunlock(xfs_inode_t *ip)
+{
+ complete(&ip->i_flush);
+}
+
#endif /* __KERNEL__ */
#endif /* __XFS_INODE_H__ */
ASSERT(iip->ili_push_owner == current_pid());
/*
- * If flushlock isn't locked anymore, chances are that the
- * inode flush completed and the inode was taken off the AIL.
- * So, just get out.
+ * If a flush is not in progress anymore, chances are that the
+ * inode was taken off the AIL. So, just get out.
*/
- if (!issemalocked(&(ip->i_flock)) ||
+ if (completion_done(&ip->i_flush) ||
((iip->ili_item.li_flags & XFS_LI_IN_AIL) == 0)) {
iip->ili_pushbuf_flag = 0;
xfs_iunlock(ip, XFS_ILOCK_SHARED);
* If not, we can flush it async.
*/
dopush = ((iip->ili_item.li_flags & XFS_LI_IN_AIL) &&
- issemalocked(&(ip->i_flock)));
+ !completion_done(&ip->i_flush));
iip->ili_pushbuf_flag = 0;
xfs_iunlock(ip, XFS_ILOCK_SHARED);
xfs_buftrace("INODE ITEM PUSH", bp);
ip = iip->ili_inode;
ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED));
- ASSERT(issemalocked(&(ip->i_flock)));
+ ASSERT(!completion_done(&ip->i_flush));
/*
* Since we were able to lock the inode's flush lock and
* we found it on the AIL, the inode must be dirty. This
{
xfs_icdinode_t *dic; /* dinode core info pointer */
xfs_inode_t *ip; /* incore inode pointer */
- bhv_vnode_t *vp;
int error;
error = xfs_iget(mp, NULL, ino,
ASSERT(ip != NULL);
ASSERT(ip->i_blkno != (xfs_daddr_t)0);
- vp = XFS_ITOV(ip);
dic = &ip->i_d;
/* xfs_iget returns the following without needing
buf->bs_uid = dic->di_uid;
buf->bs_gid = dic->di_gid;
buf->bs_size = dic->di_size;
- vn_atime_to_bstime(vp, &buf->bs_atime);
+ vn_atime_to_bstime(VFS_I(ip), &buf->bs_atime);
buf->bs_mtime.tv_sec = dic->di_mtime.t_sec;
buf->bs_mtime.tv_nsec = dic->di_mtime.t_nsec;
buf->bs_ctime.tv_sec = dic->di_ctime.t_sec;
xlog_trace_iclog(xlog_in_core_t *iclog, uint state)
{
if (!iclog->ic_trace)
- iclog->ic_trace = ktrace_alloc(256, KM_SLEEP);
+ iclog->ic_trace = ktrace_alloc(256, KM_NOFS);
ktrace_enter(iclog->ic_trace,
(void *)((unsigned long)state),
(void *)((unsigned long)current_pid()),
} else {
xlog_trace_loggrant(log, ticket, "xfs_log_done: (permanent)");
xlog_regrant_reserve_log_space(log, ticket);
- }
-
- /* If this ticket was a permanent reservation and we aren't
- * trying to release it, reset the inited flags; so next time
- * we write, a start record will be written out.
- */
- if ((ticket->t_flags & XLOG_TIC_PERM_RESERV) &&
- (flags & XFS_LOG_REL_PERM_RESERV) == 0)
+ /* If this ticket was a permanent reservation and we aren't
+ * trying to release it, reset the inited flags; so next time
+ * we write, a start record will be written out.
+ */
ticket->t_flags |= XLOG_TIC_INITED;
+ }
return lsn;
} /* xfs_log_done */
* Asynchronous forces are implemented by setting the WANT_SYNC
* bit in the appropriate in-core log and then returning.
*
- * Synchronous forces are implemented with a semaphore. All callers
- * to force a given lsn to disk will wait on a semaphore attached to the
+ * Synchronous forces are implemented with a signal variable. All callers
+ * to force a given lsn to disk will wait on a the sv attached to the
* specific in-core log. When given in-core log finally completes its
* write to disk, that thread will wake up all threads waiting on the
- * semaphore.
+ * sv.
*/
int
_xfs_log_force(
* mp - ubiquitous xfs mount point structure
*/
int
-xfs_log_mount_finish(xfs_mount_t *mp, int mfsi_flags)
+xfs_log_mount_finish(xfs_mount_t *mp)
{
int error;
if (!(mp->m_flags & XFS_MOUNT_NORECOVERY))
- error = xlog_recover_finish(mp->m_log, mfsi_flags);
+ error = xlog_recover_finish(mp->m_log);
else {
error = 0;
ASSERT(mp->m_flags & XFS_MOUNT_RDONLY);
if (!(iclog->ic_state == XLOG_STATE_ACTIVE ||
iclog->ic_state == XLOG_STATE_DIRTY)) {
if (!XLOG_FORCED_SHUTDOWN(log)) {
- sv_wait(&iclog->ic_forcesema, PMEM,
+ sv_wait(&iclog->ic_force_wait, PMEM,
&log->l_icloglock, s);
} else {
spin_unlock(&log->l_icloglock);
|| iclog->ic_state == XLOG_STATE_DIRTY
|| iclog->ic_state == XLOG_STATE_IOERROR) ) {
- sv_wait(&iclog->ic_forcesema, PMEM,
+ sv_wait(&iclog->ic_force_wait, PMEM,
&log->l_icloglock, s);
} else {
spin_unlock(&log->l_icloglock);
break;
tail_lsn = 0;
free_bytes -= tic->t_unit_res;
- sv_signal(&tic->t_sema);
+ sv_signal(&tic->t_wait);
tic = tic->t_next;
} while (tic != log->l_write_headq);
}
break;
tail_lsn = 0;
free_bytes -= need_bytes;
- sv_signal(&tic->t_sema);
+ sv_signal(&tic->t_wait);
tic = tic->t_next;
} while (tic != log->l_reserve_headq);
}
ASSERT(XFS_BUF_ISBUSY(iclog->ic_bp));
ASSERT(XFS_BUF_VALUSEMA(iclog->ic_bp) <= 0);
- sv_init(&iclog->ic_forcesema, SV_DEFAULT, "iclog-force");
- sv_init(&iclog->ic_writesema, SV_DEFAULT, "iclog-write");
+ sv_init(&iclog->ic_force_wait, SV_DEFAULT, "iclog-force");
+ sv_init(&iclog->ic_write_wait, SV_DEFAULT, "iclog-write");
iclogp = &iclog->ic_next;
}
iclog = log->l_iclog;
for (i=0; i<log->l_iclog_bufs; i++) {
- sv_destroy(&iclog->ic_forcesema);
- sv_destroy(&iclog->ic_writesema);
+ sv_destroy(&iclog->ic_force_wait);
+ sv_destroy(&iclog->ic_write_wait);
xfs_buf_free(iclog->ic_bp);
#ifdef XFS_LOG_TRACE
if (iclog->ic_trace != NULL) {
/* Clean iclogs starting from the head. This ordering must be
* maintained, so an iclog doesn't become ACTIVE beyond one that
* is SYNCING. This is also required to maintain the notion that we use
- * a counting semaphore to hold off would be writers to the log when every
+ * a ordered wait queue to hold off would be writers to the log when every
* iclog is trying to sync to disk.
*
* State Change: DIRTY -> ACTIVE
xlog_state_clean_log(log);
/* wake up threads waiting in xfs_log_force() */
- sv_broadcast(&iclog->ic_forcesema);
+ sv_broadcast(&iclog->ic_force_wait);
iclog = iclog->ic_next;
} while (first_iclog != iclog);
* the second completion goes through.
*
* Callbacks could take time, so they are done outside the scope of the
- * global state machine log lock. Assume that the calls to cvsema won't
- * take a long time. At least we know it won't sleep.
+ * global state machine log lock.
*/
STATIC void
xlog_state_done_syncing(
* iclog buffer, we wake them all, one will get to do the
* I/O, the others get to wait for the result.
*/
- sv_broadcast(&iclog->ic_writesema);
+ sv_broadcast(&iclog->ic_write_wait);
spin_unlock(&log->l_icloglock);
xlog_state_do_callback(log, aborted, iclog); /* also cleans log */
} /* xlog_state_done_syncing */
/*
* If the head of the in-core log ring is not (ACTIVE or DIRTY), then we must
- * sleep. The flush semaphore is set to the number of in-core buffers and
- * decremented around disk syncing. Therefore, if all buffers are syncing,
- * this semaphore will cause new writes to sleep until a sync completes.
- * Otherwise, this code just does p() followed by v(). This approximates
- * a sleep/wakeup except we can't race.
+ * sleep. We wait on the flush queue on the head iclog as that should be
+ * the first iclog to complete flushing. Hence if all iclogs are syncing,
+ * we will wait here and all new writes will sleep until a sync completes.
*
* The in-core logs are used in a circular fashion. They are not used
* out-of-order even when an iclog past the head is free.
goto error_return;
XFS_STATS_INC(xs_sleep_logspace);
- sv_wait(&tic->t_sema, PINOD|PLTWAIT, &log->l_grant_lock, s);
+ sv_wait(&tic->t_wait, PINOD|PLTWAIT, &log->l_grant_lock, s);
/*
* If we got an error, and the filesystem is shutting down,
* we'll catch it down below. So just continue...
xlog_trace_loggrant(log, tic,
"xlog_grant_log_space: sleep 2");
XFS_STATS_INC(xs_sleep_logspace);
- sv_wait(&tic->t_sema, PINOD|PLTWAIT, &log->l_grant_lock, s);
+ sv_wait(&tic->t_wait, PINOD|PLTWAIT, &log->l_grant_lock, s);
if (XLOG_FORCED_SHUTDOWN(log)) {
spin_lock(&log->l_grant_lock);
if (free_bytes < ntic->t_unit_res)
break;
free_bytes -= ntic->t_unit_res;
- sv_signal(&ntic->t_sema);
+ sv_signal(&ntic->t_wait);
ntic = ntic->t_next;
} while (ntic != log->l_write_headq);
xlog_trace_loggrant(log, tic,
"xlog_regrant_write_log_space: sleep 1");
XFS_STATS_INC(xs_sleep_logspace);
- sv_wait(&tic->t_sema, PINOD|PLTWAIT,
+ sv_wait(&tic->t_wait, PINOD|PLTWAIT,
&log->l_grant_lock, s);
/* If we're shutting down, this tic is already
if ((tic->t_flags & XLOG_TIC_IN_Q) == 0)
xlog_ins_ticketq(&log->l_write_headq, tic);
XFS_STATS_INC(xs_sleep_logspace);
- sv_wait(&tic->t_sema, PINOD|PLTWAIT, &log->l_grant_lock, s);
+ sv_wait(&tic->t_wait, PINOD|PLTWAIT, &log->l_grant_lock, s);
/* If we're shutting down, this tic is already off the queue */
if (XLOG_FORCED_SHUTDOWN(log)) {
* 2. the current iclog is drity, and the previous iclog is in the
* active or dirty state.
*
- * We may sleep (call psema) if:
+ * We may sleep if:
*
* 1. the current iclog is not in the active nor dirty state.
* 2. the current iclog dirty, and the previous iclog is not in the
return XFS_ERROR(EIO);
}
XFS_STATS_INC(xs_log_force_sleep);
- sv_wait(&iclog->ic_forcesema, PINOD, &log->l_icloglock, s);
+ sv_wait(&iclog->ic_force_wait, PINOD, &log->l_icloglock, s);
/*
* No need to grab the log lock here since we're
* only deciding whether or not to return EIO
XLOG_STATE_SYNCING))) {
ASSERT(!(iclog->ic_state & XLOG_STATE_IOERROR));
XFS_STATS_INC(xs_log_force_sleep);
- sv_wait(&iclog->ic_prev->ic_writesema, PSWP,
+ sv_wait(&iclog->ic_prev->ic_write_wait, PSWP,
&log->l_icloglock, s);
*log_flushed = 1;
already_slept = 1;
!(iclog->ic_state & (XLOG_STATE_ACTIVE | XLOG_STATE_DIRTY))) {
/*
- * Don't wait on the forcesema if we know that we've
+ * Don't wait on completion if we know that we've
* gotten a log write error.
*/
if (iclog->ic_state & XLOG_STATE_IOERROR) {
return XFS_ERROR(EIO);
}
XFS_STATS_INC(xs_log_force_sleep);
- sv_wait(&iclog->ic_forcesema, PSWP, &log->l_icloglock, s);
+ sv_wait(&iclog->ic_force_wait, PSWP, &log->l_icloglock, s);
/*
* No need to grab the log lock here since we're
* only deciding whether or not to return EIO
xlog_ticket_put(xlog_t *log,
xlog_ticket_t *ticket)
{
- sv_destroy(&ticket->t_sema);
+ sv_destroy(&ticket->t_wait);
kmem_zone_free(xfs_log_ticket_zone, ticket);
} /* xlog_ticket_put */
tic->t_trans_type = 0;
if (xflags & XFS_LOG_PERM_RESERV)
tic->t_flags |= XLOG_TIC_PERM_RESERV;
- sv_init(&(tic->t_sema), SV_DEFAULT, "logtick");
+ sv_init(&(tic->t_wait), SV_DEFAULT, "logtick");
xlog_tic_reset_res(tic);
*/
if ((tic = log->l_reserve_headq)) {
do {
- sv_signal(&tic->t_sema);
+ sv_signal(&tic->t_wait);
tic = tic->t_next;
} while (tic != log->l_reserve_headq);
}
if ((tic = log->l_write_headq)) {
do {
- sv_signal(&tic->t_sema);
+ sv_signal(&tic->t_wait);
tic = tic->t_next;
} while (tic != log->l_write_headq);
}
struct xfs_buftarg *log_target,
xfs_daddr_t start_block,
int num_bblocks);
-int xfs_log_mount_finish(struct xfs_mount *mp, int);
+int xfs_log_mount_finish(struct xfs_mount *mp);
void xfs_log_move_tail(struct xfs_mount *mp,
xfs_lsn_t tail_lsn);
int xfs_log_notify(struct xfs_mount *mp,
} xlog_res_t;
typedef struct xlog_ticket {
- sv_t t_sema; /* sleep on this semaphore : 20 */
+ sv_t t_wait; /* ticket wait queue : 20 */
struct xlog_ticket *t_next; /* :4|8 */
struct xlog_ticket *t_prev; /* :4|8 */
xlog_tid_t t_tid; /* transaction identifier : 4 */
* xlog_rec_header_t into the reserved space.
* - ic_data follows, so a write to disk can start at the beginning of
* the iclog.
- * - ic_forcesema is used to implement synchronous forcing of the iclog to disk.
+ * - ic_forcewait is used to implement synchronous forcing of the iclog to disk.
* - ic_next is the pointer to the next iclog in the ring.
* - ic_bp is a pointer to the buffer used to write this incore log to disk.
* - ic_log is a pointer back to the global log structure.
* and move everything else out to subsequent cachelines.
*/
typedef struct xlog_iclog_fields {
- sv_t ic_forcesema;
- sv_t ic_writesema;
+ sv_t ic_force_wait;
+ sv_t ic_write_wait;
struct xlog_in_core *ic_next;
struct xlog_in_core *ic_prev;
struct xfs_buf *ic_bp;
/*
* Defines to save our code from this glop.
*/
-#define ic_forcesema hic_fields.ic_forcesema
-#define ic_writesema hic_fields.ic_writesema
+#define ic_force_wait hic_fields.ic_force_wait
+#define ic_write_wait hic_fields.ic_write_wait
#define ic_next hic_fields.ic_next
#define ic_prev hic_fields.ic_prev
#define ic_bp hic_fields.ic_bp
xfs_daddr_t *head_blk,
xfs_daddr_t *tail_blk);
extern int xlog_recover(xlog_t *log);
-extern int xlog_recover_finish(xlog_t *log, int mfsi_flags);
+extern int xlog_recover_finish(xlog_t *log);
extern void xlog_pack_data(xlog_t *log, xlog_in_core_t *iclog, int);
extern void xlog_recover_process_iunlinks(xlog_t *log);
*/
int
xlog_recover_finish(
- xlog_t *log,
- int mfsi_flags)
+ xlog_t *log)
{
/*
* Now we're ready to do the transactions needed for the
xfs_log_force(log->l_mp, (xfs_lsn_t)0,
(XFS_LOG_FORCE | XFS_LOG_SYNC));
- if ( (mfsi_flags & XFS_MFSI_NOUNLINK) == 0 ) {
- xlog_recover_process_iunlinks(log);
- }
+ xlog_recover_process_iunlinks(log);
xlog_recover_check_summary(log);
* initialized.
*/
STATIC void
-xfs_mount_free(
+xfs_free_perag(
xfs_mount_t *mp)
{
if (mp->m_perag) {
kmem_free(mp->m_perag[agno].pagb_list);
kmem_free(mp->m_perag);
}
-
- spinlock_destroy(&mp->m_ail_lock);
- spinlock_destroy(&mp->m_sb_lock);
- mutex_destroy(&mp->m_ilock);
- mutex_destroy(&mp->m_growlock);
- if (mp->m_quotainfo)
- XFS_QM_DONE(mp);
-
- if (mp->m_fsname != NULL)
- kmem_free(mp->m_fsname);
- if (mp->m_rtname != NULL)
- kmem_free(mp->m_rtname);
- if (mp->m_logname != NULL)
- kmem_free(mp->m_logname);
}
/*
* Update alignment values based on mount options and sb values
*/
STATIC int
-xfs_update_alignment(xfs_mount_t *mp, int mfsi_flags, __uint64_t *update_flags)
+xfs_update_alignment(xfs_mount_t *mp, __uint64_t *update_flags)
{
xfs_sb_t *sbp = &(mp->m_sb);
- if (mp->m_dalign && !(mfsi_flags & XFS_MFSI_SECOND)) {
+ if (mp->m_dalign) {
/*
* If stripe unit and stripe width are not multiples
* of the fs blocksize turn off alignment.
* Check that the data (and log if separate) are an ok size.
*/
STATIC int
-xfs_check_sizes(xfs_mount_t *mp, int mfsi_flags)
+xfs_check_sizes(xfs_mount_t *mp)
{
xfs_buf_t *bp;
xfs_daddr_t d;
return error;
}
- if (((mfsi_flags & XFS_MFSI_CLIENT) == 0) &&
- mp->m_logdev_targp != mp->m_ddev_targp) {
+ if (mp->m_logdev_targp != mp->m_ddev_targp) {
d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks);
if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_logblocks) {
cmn_err(CE_WARN, "XFS: size check 3 failed");
*/
int
xfs_mountfs(
- xfs_mount_t *mp,
- int mfsi_flags)
+ xfs_mount_t *mp)
{
xfs_sb_t *sbp = &(mp->m_sb);
xfs_inode_t *rip;
__uint64_t resblks;
__int64_t update_flags = 0LL;
uint quotamount, quotaflags;
- int agno;
int uuid_mounted = 0;
int error = 0;
* allocator alignment is within an ag, therefore ag has
* to be aligned at stripe boundary.
*/
- error = xfs_update_alignment(mp, mfsi_flags, &update_flags);
+ error = xfs_update_alignment(mp, &update_flags);
if (error)
goto error1;
* since a single partition filesystem is identical to a single
* partition volume/filesystem.
*/
- if ((mfsi_flags & XFS_MFSI_SECOND) == 0 &&
- (mp->m_flags & XFS_MOUNT_NOUUID) == 0) {
+ if ((mp->m_flags & XFS_MOUNT_NOUUID) == 0) {
if (xfs_uuid_mount(mp)) {
error = XFS_ERROR(EINVAL);
goto error1;
/*
* Check that the data (and log if separate) are an ok size.
*/
- error = xfs_check_sizes(mp, mfsi_flags);
+ error = xfs_check_sizes(mp);
if (error)
goto error1;
goto error1;
}
- /*
- * For client case we are done now
- */
- if (mfsi_flags & XFS_MFSI_CLIENT) {
- return 0;
- }
-
/*
* Copies the low order bits of the timestamp and the randomly
* set "sequence" number out of a UUID.
* Allocate and initialize the per-ag data.
*/
init_rwsem(&mp->m_peraglock);
- mp->m_perag =
- kmem_zalloc(sbp->sb_agcount * sizeof(xfs_perag_t), KM_SLEEP);
+ mp->m_perag = kmem_zalloc(sbp->sb_agcount * sizeof(xfs_perag_t),
+ KM_MAYFAIL);
+ if (!mp->m_perag)
+ goto error1;
mp->m_maxagi = xfs_initialize_perag(mp, sbp->sb_agcount);
* delayed until after the root and real-time bitmap inodes
* were consistently read in.
*/
- error = xfs_log_mount_finish(mp, mfsi_flags);
+ error = xfs_log_mount_finish(mp);
if (error) {
cmn_err(CE_WARN, "XFS: log mount finish failed");
goto error4;
/*
* Complete the quota initialisation, post-log-replay component.
*/
- error = XFS_QM_MOUNT(mp, quotamount, quotaflags, mfsi_flags);
+ error = XFS_QM_MOUNT(mp, quotamount, quotaflags);
if (error)
goto error4;
error3:
xfs_log_unmount_dealloc(mp);
error2:
- for (agno = 0; agno < sbp->sb_agcount; agno++)
- if (mp->m_perag[agno].pagb_list)
- kmem_free(mp->m_perag[agno].pagb_list);
- kmem_free(mp->m_perag);
- mp->m_perag = NULL;
- /* FALLTHROUGH */
+ xfs_free_perag(mp);
error1:
if (uuid_mounted)
uuid_table_remove(&mp->m_sb.sb_uuid);
}
/*
- * xfs_unmountfs
- *
* This flushes out the inodes,dquots and the superblock, unmounts the
* log and makes sure that incore structures are freed.
*/
-int
-xfs_unmountfs(xfs_mount_t *mp)
+void
+xfs_unmountfs(
+ struct xfs_mount *mp)
{
- __uint64_t resblks;
- int error = 0;
+ __uint64_t resblks;
+ int error;
+
+ IRELE(mp->m_rootip);
/*
* We can potentially deadlock here if we have an inode cluster
xfs_unmountfs_wait(mp); /* wait for async bufs */
xfs_log_unmount(mp); /* Done! No more fs ops. */
- xfs_freesb(mp);
-
/*
* All inodes from this mount point should be freed.
*/
if ((mp->m_flags & XFS_MOUNT_NOUUID) == 0)
uuid_table_remove(&mp->m_sb.sb_uuid);
-#if defined(DEBUG) || defined(INDUCE_IO_ERROR)
+#if defined(DEBUG)
xfs_errortag_clearall(mp, 0);
#endif
- xfs_mount_free(mp);
- return 0;
+ xfs_free_perag(mp);
+ if (mp->m_quotainfo)
+ XFS_QM_DONE(mp);
}
STATIC void
struct xfs_quotainfo;
typedef int (*xfs_qminit_t)(struct xfs_mount *, uint *, uint *);
-typedef int (*xfs_qmmount_t)(struct xfs_mount *, uint, uint, int);
+typedef int (*xfs_qmmount_t)(struct xfs_mount *, uint, uint);
typedef int (*xfs_qmunmount_t)(struct xfs_mount *);
typedef void (*xfs_qmdone_t)(struct xfs_mount *);
typedef void (*xfs_dqrele_t)(struct xfs_dquot *);
#define XFS_QM_INIT(mp, mnt, fl) \
(*(mp)->m_qm_ops->xfs_qminit)(mp, mnt, fl)
-#define XFS_QM_MOUNT(mp, mnt, fl, mfsi_flags) \
- (*(mp)->m_qm_ops->xfs_qmmount)(mp, mnt, fl, mfsi_flags)
+#define XFS_QM_MOUNT(mp, mnt, fl) \
+ (*(mp)->m_qm_ops->xfs_qmmount)(mp, mnt, fl)
#define XFS_QM_UNMOUNT(mp) \
(*(mp)->m_qm_ops->xfs_qmunmount)(mp)
#define XFS_QM_DONE(mp) \
/*
* Flags for xfs_mountfs
*/
-#define XFS_MFSI_SECOND 0x01 /* Secondary mount -- skip stuff */
-#define XFS_MFSI_CLIENT 0x02 /* Is a client -- skip lots of stuff */
-/* XFS_MFSI_RRINODES */
-#define XFS_MFSI_NOUNLINK 0x08 /* Skip unlinked inode processing in */
- /* log recovery */
-#define XFS_MFSI_NO_QUOTACHECK 0x10 /* Skip quotacheck processing */
-/* XFS_MFSI_CONVERT_SUNIT */
#define XFS_MFSI_QUIET 0x40 /* Be silent if mount errors found */
#define XFS_DADDR_TO_AGNO(mp,d) xfs_daddr_to_agno(mp,d)
extern void xfs_mod_sb(xfs_trans_t *, __int64_t);
extern int xfs_log_sbcount(xfs_mount_t *, uint);
-extern int xfs_mountfs(xfs_mount_t *mp, int);
+extern int xfs_mountfs(xfs_mount_t *mp);
extern void xfs_mountfs_check_barriers(xfs_mount_t *mp);
-extern int xfs_unmountfs(xfs_mount_t *);
+extern void xfs_unmountfs(xfs_mount_t *);
extern int xfs_unmountfs_writesb(xfs_mount_t *);
extern int xfs_unmount_flush(xfs_mount_t *, int);
extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int);
* Internal functions.
*/
-/*
- * xfs_lowbit32: get low bit set out of 32-bit argument, -1 if none set.
- */
-STATIC int
-xfs_lowbit32(
- __uint32_t v)
-{
- if (v)
- return ffs(v) - 1;
- return -1;
-}
-
/*
* Allocate space to the bitmap or summary file, and zero it, for growfs.
*/
}
bbno = XFS_BITTOBLOCK(mp, bno);
i = 0;
+ ASSERT(minlen != 0);
log2len = xfs_highbit32(minlen);
/*
* Loop over all bitmap blocks (bbno + i is current block).
xfs_suminfo_t sum; /* summary information for extents */
ASSERT(minlen % prod == 0 && maxlen % prod == 0);
+ ASSERT(maxlen != 0);
+
/*
* Loop over all the levels starting with maxlen.
* At each level, look at all the bitmap blocks, to see if there
*rtblock = NULLRTBLOCK;
return 0;
}
+ ASSERT(minlen != 0);
+ ASSERT(maxlen != 0);
+
/*
* Loop over sizes, from maxlen down to minlen.
* This time, when we do the allocations, allow smaller ones
nsbp->sb_blocksize * nsbp->sb_rextsize);
nsbp->sb_rextents = nsbp->sb_rblocks;
do_div(nsbp->sb_rextents, nsbp->sb_rextsize);
+ ASSERT(nsbp->sb_rextents != 0);
nsbp->sb_rextslog = xfs_highbit32(nsbp->sb_rextents);
nrsumlevels = nmp->m_rsumlevels = nsbp->sb_rextslog + 1;
nrsumsize =
* ASYNC buffers.
*/
XFS_BUF_ERROR(bp, EIO);
- XFS_BUF_V_IODONESEMA(bp);
+ XFS_BUF_FINISH_IOWAIT(bp);
} else {
xfs_buf_relse(bp);
}
#include "xfs_quota.h"
#include "xfs_trans_priv.h"
#include "xfs_trans_space.h"
+#include "xfs_inode_item.h"
STATIC void xfs_trans_apply_sb_deltas(xfs_trans_t *);
tp->t_mountp = mp;
tp->t_items_free = XFS_LIC_NUM_SLOTS;
tp->t_busy_free = XFS_LBC_NUM_SLOTS;
- XFS_LIC_INIT(&(tp->t_items));
+ xfs_lic_init(&(tp->t_items));
XFS_LBC_INIT(&(tp->t_busy));
return tp;
}
ntp->t_mountp = tp->t_mountp;
ntp->t_items_free = XFS_LIC_NUM_SLOTS;
ntp->t_busy_free = XFS_LBC_NUM_SLOTS;
- XFS_LIC_INIT(&(ntp->t_items));
+ xfs_lic_init(&(ntp->t_items));
XFS_LBC_INIT(&(ntp->t_busy));
ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES);
while (licp != NULL) {
lidp = licp->lic_descs;
for (i = 0; i < licp->lic_unused; i++, lidp++) {
- if (XFS_LIC_ISFREE(licp, i)) {
+ if (xfs_lic_isfree(licp, i)) {
continue;
}
kmem_zone_free(xfs_trans_zone, tp);
}
+/*
+ * Roll from one trans in the sequence of PERMANENT transactions to
+ * the next: permanent transactions are only flushed out when
+ * committed with XFS_TRANS_RELEASE_LOG_RES, but we still want as soon
+ * as possible to let chunks of it go to the log. So we commit the
+ * chunk we've been working on and get a new transaction to continue.
+ */
+int
+xfs_trans_roll(
+ struct xfs_trans **tpp,
+ struct xfs_inode *dp)
+{
+ struct xfs_trans *trans;
+ unsigned int logres, count;
+ int error;
+
+ /*
+ * Ensure that the inode is always logged.
+ */
+ trans = *tpp;
+ xfs_trans_log_inode(trans, dp, XFS_ILOG_CORE);
+
+ /*
+ * Copy the critical parameters from one trans to the next.
+ */
+ logres = trans->t_log_res;
+ count = trans->t_log_count;
+ *tpp = xfs_trans_dup(trans);
+
+ /*
+ * Commit the current transaction.
+ * If this commit failed, then it'd just unlock those items that
+ * are not marked ihold. That also means that a filesystem shutdown
+ * is in progress. The caller takes the responsibility to cancel
+ * the duplicate transaction that gets returned.
+ */
+ error = xfs_trans_commit(trans, 0);
+ if (error)
+ return (error);
+
+ trans = *tpp;
+
+ /*
+ * Reserve space in the log for th next transaction.
+ * This also pushes items in the "AIL", the list of logged items,
+ * out to disk if they are taking up space at the tail of the log
+ * that we want to use. This requires that either nothing be locked
+ * across this call, or that anything that is locked be logged in
+ * the prior and the next transactions.
+ */
+ error = xfs_trans_reserve(trans, 0, logres, 0,
+ XFS_TRANS_PERM_LOG_RES, count);
+ /*
+ * Ensure that the inode is in the new transaction and locked.
+ */
+ if (error)
+ return error;
+
+ xfs_trans_ijoin(trans, dp, XFS_ILOCK_EXCL);
+ xfs_trans_ihold(trans, dp);
+ return 0;
+}
/*
* THIS SHOULD BE REWRITTEN TO USE xfs_trans_next_item().
* Special case the chunk embedded in the transaction.
*/
licp = &(tp->t_items);
- if (!(XFS_LIC_ARE_ALL_FREE(licp))) {
+ if (!(xfs_lic_are_all_free(licp))) {
xfs_trans_chunk_committed(licp, tp->t_lsn, abortflag);
}
*/
licp = licp->lic_next;
while (licp != NULL) {
- ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
+ ASSERT(!xfs_lic_are_all_free(licp));
xfs_trans_chunk_committed(licp, tp->t_lsn, abortflag);
next_licp = licp->lic_next;
kmem_free(licp);
lidp = licp->lic_descs;
for (i = 0; i < licp->lic_unused; i++, lidp++) {
- if (XFS_LIC_ISFREE(licp, i)) {
+ if (xfs_lic_isfree(licp, i)) {
continue;
}
* lic_unused to the right value (0 matches all free). The
* lic_descs.lid_index values are set up as each desc is allocated.
*/
-#define XFS_LIC_INIT(cp) xfs_lic_init(cp)
static inline void xfs_lic_init(xfs_log_item_chunk_t *cp)
{
cp->lic_free = XFS_LIC_FREEMASK;
}
-#define XFS_LIC_INIT_SLOT(cp,slot) xfs_lic_init_slot(cp, slot)
static inline void xfs_lic_init_slot(xfs_log_item_chunk_t *cp, int slot)
{
cp->lic_descs[slot].lid_index = (unsigned char)(slot);
}
-#define XFS_LIC_VACANCY(cp) xfs_lic_vacancy(cp)
static inline int xfs_lic_vacancy(xfs_log_item_chunk_t *cp)
{
return cp->lic_free & XFS_LIC_FREEMASK;
}
-#define XFS_LIC_ALL_FREE(cp) xfs_lic_all_free(cp)
static inline void xfs_lic_all_free(xfs_log_item_chunk_t *cp)
{
cp->lic_free = XFS_LIC_FREEMASK;
}
-#define XFS_LIC_ARE_ALL_FREE(cp) xfs_lic_are_all_free(cp)
static inline int xfs_lic_are_all_free(xfs_log_item_chunk_t *cp)
{
return ((cp->lic_free & XFS_LIC_FREEMASK) == XFS_LIC_FREEMASK);
}
-#define XFS_LIC_ISFREE(cp,slot) xfs_lic_isfree(cp,slot)
static inline int xfs_lic_isfree(xfs_log_item_chunk_t *cp, int slot)
{
return (cp->lic_free & (1 << slot));
}
-#define XFS_LIC_CLAIM(cp,slot) xfs_lic_claim(cp,slot)
static inline void xfs_lic_claim(xfs_log_item_chunk_t *cp, int slot)
{
cp->lic_free &= ~(1 << slot);
}
-#define XFS_LIC_RELSE(cp,slot) xfs_lic_relse(cp,slot)
static inline void xfs_lic_relse(xfs_log_item_chunk_t *cp, int slot)
{
cp->lic_free |= 1 << slot;
}
-#define XFS_LIC_SLOT(cp,slot) xfs_lic_slot(cp,slot)
static inline xfs_log_item_desc_t *
xfs_lic_slot(xfs_log_item_chunk_t *cp, int slot)
{
return &(cp->lic_descs[slot]);
}
-#define XFS_LIC_DESC_TO_SLOT(dp) xfs_lic_desc_to_slot(dp)
static inline int xfs_lic_desc_to_slot(xfs_log_item_desc_t *dp)
{
return (uint)dp->lid_index;
* All of this yields the address of the chunk, which is
* cast to a chunk pointer.
*/
-#define XFS_LIC_DESC_TO_CHUNK(dp) xfs_lic_desc_to_chunk(dp)
static inline xfs_log_item_chunk_t *
xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp)
{
int *);
#define xfs_trans_commit(tp, flags) _xfs_trans_commit(tp, flags, NULL)
void xfs_trans_cancel(xfs_trans_t *, int);
+int xfs_trans_roll(struct xfs_trans **, struct xfs_inode *);
int xfs_trans_ail_init(struct xfs_mount *);
void xfs_trans_ail_destroy(struct xfs_mount *);
void xfs_trans_push_ail(struct xfs_mount *, xfs_lsn_t);
bp = NULL;
len = BBTOB(len);
licp = &tp->t_items;
- if (!XFS_LIC_ARE_ALL_FREE(licp)) {
+ if (!xfs_lic_are_all_free(licp)) {
for (i = 0; i < licp->lic_unused; i++) {
/*
* Skip unoccupied slots.
*/
- if (XFS_LIC_ISFREE(licp, i)) {
+ if (xfs_lic_isfree(licp, i)) {
continue;
}
- lidp = XFS_LIC_SLOT(licp, i);
+ lidp = xfs_lic_slot(licp, i);
blip = (xfs_buf_log_item_t *)lidp->lid_item;
if (blip->bli_item.li_type != XFS_LI_BUF) {
continue;
bp = NULL;
len = BBTOB(len);
for (licp = &tp->t_items; licp != NULL; licp = licp->lic_next) {
- if (XFS_LIC_ARE_ALL_FREE(licp)) {
+ if (xfs_lic_are_all_free(licp)) {
ASSERT(licp == &tp->t_items);
ASSERT(licp->lic_next == NULL);
return NULL;
/*
* Skip unoccupied slots.
*/
- if (XFS_LIC_ISFREE(licp, i)) {
+ if (xfs_lic_isfree(licp, i)) {
continue;
}
- lidp = XFS_LIC_SLOT(licp, i);
+ lidp = xfs_lic_slot(licp, i);
blip = (xfs_buf_log_item_t *)lidp->lid_item;
if (blip->bli_item.li_type != XFS_LI_BUF) {
continue;
* Initialize the chunk, and then
* claim the first slot in the newly allocated chunk.
*/
- XFS_LIC_INIT(licp);
- XFS_LIC_CLAIM(licp, 0);
+ xfs_lic_init(licp);
+ xfs_lic_claim(licp, 0);
licp->lic_unused = 1;
- XFS_LIC_INIT_SLOT(licp, 0);
- lidp = XFS_LIC_SLOT(licp, 0);
+ xfs_lic_init_slot(licp, 0);
+ lidp = xfs_lic_slot(licp, 0);
/*
* Link in the new chunk and update the free count.
*/
licp = &tp->t_items;
while (licp != NULL) {
- if (XFS_LIC_VACANCY(licp)) {
+ if (xfs_lic_vacancy(licp)) {
if (licp->lic_unused <= XFS_LIC_MAX_SLOT) {
i = licp->lic_unused;
- ASSERT(XFS_LIC_ISFREE(licp, i));
+ ASSERT(xfs_lic_isfree(licp, i));
break;
}
for (i = 0; i <= XFS_LIC_MAX_SLOT; i++) {
- if (XFS_LIC_ISFREE(licp, i))
+ if (xfs_lic_isfree(licp, i))
break;
}
ASSERT(i <= XFS_LIC_MAX_SLOT);
* If we find a free descriptor, claim it,
* initialize it, and return it.
*/
- XFS_LIC_CLAIM(licp, i);
+ xfs_lic_claim(licp, i);
if (licp->lic_unused <= i) {
licp->lic_unused = i + 1;
- XFS_LIC_INIT_SLOT(licp, i);
+ xfs_lic_init_slot(licp, i);
}
- lidp = XFS_LIC_SLOT(licp, i);
+ lidp = xfs_lic_slot(licp, i);
tp->t_items_free--;
lidp->lid_item = lip;
lidp->lid_flags = 0;
xfs_log_item_chunk_t *licp;
xfs_log_item_chunk_t **licpp;
- slot = XFS_LIC_DESC_TO_SLOT(lidp);
- licp = XFS_LIC_DESC_TO_CHUNK(lidp);
- XFS_LIC_RELSE(licp, slot);
+ slot = xfs_lic_desc_to_slot(lidp);
+ licp = xfs_lic_desc_to_chunk(lidp);
+ xfs_lic_relse(licp, slot);
lidp->lid_item->li_desc = NULL;
tp->t_items_free++;
* Also decrement the transaction structure's count of free items
* by the number in a chunk since we are freeing an empty chunk.
*/
- if (XFS_LIC_ARE_ALL_FREE(licp) && (licp != &(tp->t_items))) {
+ if (xfs_lic_are_all_free(licp) && (licp != &(tp->t_items))) {
licpp = &(tp->t_items.lic_next);
while (*licpp != licp) {
ASSERT(*licpp != NULL);
/*
* If it's not in the first chunk, skip to the second.
*/
- if (XFS_LIC_ARE_ALL_FREE(licp)) {
+ if (xfs_lic_are_all_free(licp)) {
licp = licp->lic_next;
}
/*
* Return the first non-free descriptor in the chunk.
*/
- ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
+ ASSERT(!xfs_lic_are_all_free(licp));
for (i = 0; i < licp->lic_unused; i++) {
- if (XFS_LIC_ISFREE(licp, i)) {
+ if (xfs_lic_isfree(licp, i)) {
continue;
}
- return XFS_LIC_SLOT(licp, i);
+ return xfs_lic_slot(licp, i);
}
cmn_err(CE_WARN, "xfs_trans_first_item() -- no first item");
return NULL;
xfs_log_item_chunk_t *licp;
int i;
- licp = XFS_LIC_DESC_TO_CHUNK(lidp);
+ licp = xfs_lic_desc_to_chunk(lidp);
/*
* First search the rest of the chunk. The for loop keeps us
* from referencing things beyond the end of the chunk.
*/
- for (i = (int)XFS_LIC_DESC_TO_SLOT(lidp) + 1; i < licp->lic_unused; i++) {
- if (XFS_LIC_ISFREE(licp, i)) {
+ for (i = (int)xfs_lic_desc_to_slot(lidp) + 1; i < licp->lic_unused; i++) {
+ if (xfs_lic_isfree(licp, i)) {
continue;
}
- return XFS_LIC_SLOT(licp, i);
+ return xfs_lic_slot(licp, i);
}
/*
}
licp = licp->lic_next;
- ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
+ ASSERT(!xfs_lic_are_all_free(licp));
for (i = 0; i < licp->lic_unused; i++) {
- if (XFS_LIC_ISFREE(licp, i)) {
+ if (xfs_lic_isfree(licp, i)) {
continue;
}
- return XFS_LIC_SLOT(licp, i);
+ return xfs_lic_slot(licp, i);
}
ASSERT(0);
/* NOTREACHED */
/*
* Special case the embedded chunk so we don't free it below.
*/
- if (!XFS_LIC_ARE_ALL_FREE(licp)) {
+ if (!xfs_lic_are_all_free(licp)) {
(void) xfs_trans_unlock_chunk(licp, 1, abort, NULLCOMMITLSN);
- XFS_LIC_ALL_FREE(licp);
+ xfs_lic_all_free(licp);
licp->lic_unused = 0;
}
licp = licp->lic_next;
* Unlock each item in each chunk and free the chunks.
*/
while (licp != NULL) {
- ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
+ ASSERT(!xfs_lic_are_all_free(licp));
(void) xfs_trans_unlock_chunk(licp, 1, abort, NULLCOMMITLSN);
next_licp = licp->lic_next;
kmem_free(licp);
/*
* Special case the embedded chunk so we don't free.
*/
- if (!XFS_LIC_ARE_ALL_FREE(licp)) {
+ if (!xfs_lic_are_all_free(licp)) {
freed = xfs_trans_unlock_chunk(licp, 0, 0, commit_lsn);
}
licpp = &(tp->t_items.lic_next);
* and free empty chunks.
*/
while (licp != NULL) {
- ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
+ ASSERT(!xfs_lic_are_all_free(licp));
freed += xfs_trans_unlock_chunk(licp, 0, 0, commit_lsn);
next_licp = licp->lic_next;
- if (XFS_LIC_ARE_ALL_FREE(licp)) {
+ if (xfs_lic_are_all_free(licp)) {
*licpp = next_licp;
kmem_free(licp);
freed -= XFS_LIC_NUM_SLOTS;
freed = 0;
lidp = licp->lic_descs;
for (i = 0; i < licp->lic_unused; i++, lidp++) {
- if (XFS_LIC_ISFREE(licp, i)) {
+ if (xfs_lic_isfree(licp, i)) {
continue;
}
lip = lidp->lid_item;
*/
if (!(freeing_chunk) &&
(!(lidp->lid_flags & XFS_LID_DIRTY) || abort)) {
- XFS_LIC_RELSE(licp, i);
+ xfs_lic_relse(licp, i);
freed++;
}
}
ASSERT (ip->i_d.di_nlink > 0);
ip->i_d.di_nlink--;
- drop_nlink(ip->i_vnode);
+ drop_nlink(VFS_I(ip));
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
error = 0;
ASSERT(ip->i_d.di_nlink > 0);
ip->i_d.di_nlink++;
- inc_nlink(ip->i_vnode);
+ inc_nlink(VFS_I(ip));
if ((ip->i_d.di_version == XFS_DINODE_VERSION_1) &&
(ip->i_d.di_nlink > XFS_MAXLINK_1)) {
/*
#ifndef __XFS_UTILS_H__
#define __XFS_UTILS_H__
-#define IRELE(ip) VN_RELE(XFS_ITOV(ip))
-#define IHOLD(ip) VN_HOLD(XFS_ITOV(ip))
-
extern int xfs_truncate_file(xfs_mount_t *, xfs_inode_t *);
extern int xfs_dir_ialloc(xfs_trans_t **, xfs_inode_t *, mode_t, xfs_nlink_t,
xfs_dev_t, cred_t *, prid_t, int,
xfs_inode_t *rip = mp->m_rootip;
xfs_inode_t *rbmip;
xfs_inode_t *rsumip = NULL;
- bhv_vnode_t *rvp = XFS_ITOV(rip);
int error;
xfs_ilock(rip, XFS_ILOCK_EXCL | XFS_ILOCK_PARENT);
if (error == EFSCORRUPTED)
goto fscorrupt_out;
- ASSERT(vn_count(XFS_ITOV(rbmip)) == 1);
+ ASSERT(vn_count(VFS_I(rbmip)) == 1);
rsumip = mp->m_rsumip;
xfs_ilock(rsumip, XFS_ILOCK_EXCL);
if (error == EFSCORRUPTED)
goto fscorrupt_out;
- ASSERT(vn_count(XFS_ITOV(rsumip)) == 1);
+ ASSERT(vn_count(VFS_I(rsumip)) == 1);
}
/*
if (error == EFSCORRUPTED)
goto fscorrupt_out2;
- if (vn_count(rvp) != 1 && !relocation) {
+ if (vn_count(VFS_I(rip)) != 1 && !relocation) {
xfs_iunlock(rip, XFS_ILOCK_EXCL);
return XFS_ERROR(EBUSY);
}
int *bypassed)
{
xfs_inode_t *ip = NULL;
- bhv_vnode_t *vp = NULL;
+ struct inode *vp = NULL;
int error;
int last_error;
uint64_t fflag;
continue;
}
- vp = XFS_ITOV_NULL(ip);
+ vp = VFS_I(ip);
/*
* If the vnode is gone then this is being torn down,
IPOINTER_INSERT(ip, mp);
xfs_ilock(ip, lock_flags);
- ASSERT(vp == XFS_ITOV(ip));
+ ASSERT(vp == VFS_I(ip));
ASSERT(ip->i_mount == mp);
vnode_refed = B_TRUE;
cred_t *credp)
{
xfs_mount_t *mp = ip->i_mount;
- struct inode *inode = XFS_ITOV(ip);
+ struct inode *inode = VFS_I(ip);
int mask = iattr->ia_valid;
xfs_trans_t *tp;
int code;
ip->i_d.di_atime.t_sec = iattr->ia_atime.tv_sec;
ip->i_d.di_atime.t_nsec = iattr->ia_atime.tv_nsec;
ip->i_update_core = 1;
- timeflags &= ~XFS_ICHGTIME_ACC;
}
if (mask & ATTR_MTIME) {
inode->i_mtime = iattr->ia_mtime;
return XFS_ERROR(EIO);
/* capture size updates in I/O completion before writing the inode. */
- error = filemap_fdatawait(vn_to_inode(XFS_ITOV(ip))->i_mapping);
+ error = filemap_fdatawait(VFS_I(ip)->i_mapping);
if (error)
return XFS_ERROR(error);
xfs_release(
xfs_inode_t *ip)
{
- bhv_vnode_t *vp = XFS_ITOV(ip);
xfs_mount_t *mp = ip->i_mount;
int error;
* be exposed to that problem.
*/
truncated = xfs_iflags_test_and_clear(ip, XFS_ITRUNCATED);
- if (truncated && VN_DIRTY(vp) && ip->i_delayed_blks > 0)
+ if (truncated && VN_DIRTY(VFS_I(ip)) && ip->i_delayed_blks > 0)
xfs_flush_pages(ip, 0, -1, XFS_B_ASYNC, FI_NONE);
}
if (ip->i_d.di_nlink != 0) {
if ((((ip->i_d.di_mode & S_IFMT) == S_IFREG) &&
- ((ip->i_size > 0) || (VN_CACHED(vp) > 0 ||
+ ((ip->i_size > 0) || (VN_CACHED(VFS_I(ip)) > 0 ||
ip->i_delayed_blks > 0)) &&
(ip->i_df.if_flags & XFS_IFEXTENTS)) &&
(!(ip->i_d.di_flags &
xfs_inactive(
xfs_inode_t *ip)
{
- bhv_vnode_t *vp = XFS_ITOV(ip);
xfs_bmap_free_t free_list;
xfs_fsblock_t first_block;
int committed;
* If the inode is already free, then there can be nothing
* to clean up here.
*/
- if (ip->i_d.di_mode == 0 || VN_BAD(vp)) {
+ if (ip->i_d.di_mode == 0 || VN_BAD(VFS_I(ip))) {
ASSERT(ip->i_df.if_real_bytes == 0);
ASSERT(ip->i_df.if_broot_bytes == 0);
return VN_INACTIVE_CACHE;
if (ip->i_d.di_nlink != 0) {
if ((((ip->i_d.di_mode & S_IFMT) == S_IFREG) &&
- ((ip->i_size > 0) || (VN_CACHED(vp) > 0 ||
+ ((ip->i_size > 0) || (VN_CACHED(VFS_I(ip)) > 0 ||
ip->i_delayed_blks > 0)) &&
(ip->i_df.if_flags & XFS_IFEXTENTS) &&
(!(ip->i_d.di_flags &
goto std_return;
}
-#ifdef DEBUG
-/*
- * Some counters to see if (and how often) we are hitting some deadlock
- * prevention code paths.
- */
-
-int xfs_rm_locks;
-int xfs_rm_lock_delays;
-int xfs_rm_attempts;
-#endif
-
-/*
- * The following routine will lock the inodes associated with the
- * directory and the named entry in the directory. The locks are
- * acquired in increasing inode number.
- *
- * If the entry is "..", then only the directory is locked. The
- * vnode ref count will still include that from the .. entry in
- * this case.
- *
- * There is a deadlock we need to worry about. If the locked directory is
- * in the AIL, it might be blocking up the log. The next inode we lock
- * could be already locked by another thread waiting for log space (e.g
- * a permanent log reservation with a long running transaction (see
- * xfs_itruncate_finish)). To solve this, we must check if the directory
- * is in the ail and use lock_nowait. If we can't lock, we need to
- * drop the inode lock on the directory and try again. xfs_iunlock will
- * potentially push the tail if we were holding up the log.
- */
-STATIC int
-xfs_lock_dir_and_entry(
- xfs_inode_t *dp,
- xfs_inode_t *ip) /* inode of entry 'name' */
-{
- int attempts;
- xfs_ino_t e_inum;
- xfs_inode_t *ips[2];
- xfs_log_item_t *lp;
-
-#ifdef DEBUG
- xfs_rm_locks++;
-#endif
- attempts = 0;
-
-again:
- xfs_ilock(dp, XFS_ILOCK_EXCL | XFS_ILOCK_PARENT);
-
- e_inum = ip->i_ino;
-
- xfs_itrace_ref(ip);
-
- /*
- * We want to lock in increasing inum. Since we've already
- * acquired the lock on the directory, we may need to release
- * if if the inum of the entry turns out to be less.
- */
- if (e_inum > dp->i_ino) {
- /*
- * We are already in the right order, so just
- * lock on the inode of the entry.
- * We need to use nowait if dp is in the AIL.
- */
-
- lp = (xfs_log_item_t *)dp->i_itemp;
- if (lp && (lp->li_flags & XFS_LI_IN_AIL)) {
- if (!xfs_ilock_nowait(ip, XFS_ILOCK_EXCL)) {
- attempts++;
-#ifdef DEBUG
- xfs_rm_attempts++;
-#endif
-
- /*
- * Unlock dp and try again.
- * xfs_iunlock will try to push the tail
- * if the inode is in the AIL.
- */
-
- xfs_iunlock(dp, XFS_ILOCK_EXCL);
-
- if ((attempts % 5) == 0) {
- delay(1); /* Don't just spin the CPU */
-#ifdef DEBUG
- xfs_rm_lock_delays++;
-#endif
- }
- goto again;
- }
- } else {
- xfs_ilock(ip, XFS_ILOCK_EXCL);
- }
- } else if (e_inum < dp->i_ino) {
- xfs_iunlock(dp, XFS_ILOCK_EXCL);
-
- ips[0] = ip;
- ips[1] = dp;
- xfs_lock_inodes(ips, 2, XFS_ILOCK_EXCL);
- }
- /* else e_inum == dp->i_ino */
- /* This can happen if we're asked to lock /x/..
- * the entry is "..", which is also the parent directory.
- */
-
- return 0;
-}
-
#ifdef DEBUG
int xfs_locked_n;
int xfs_small_retries;
#endif
}
+void
+xfs_lock_two_inodes(
+ xfs_inode_t *ip0,
+ xfs_inode_t *ip1,
+ uint lock_mode)
+{
+ xfs_inode_t *temp;
+ int attempts = 0;
+ xfs_log_item_t *lp;
+
+ ASSERT(ip0->i_ino != ip1->i_ino);
+
+ if (ip0->i_ino > ip1->i_ino) {
+ temp = ip0;
+ ip0 = ip1;
+ ip1 = temp;
+ }
+
+ again:
+ xfs_ilock(ip0, xfs_lock_inumorder(lock_mode, 0));
+
+ /*
+ * If the first lock we have locked is in the AIL, we must TRY to get
+ * the second lock. If we can't get it, we must release the first one
+ * and try again.
+ */
+ lp = (xfs_log_item_t *)ip0->i_itemp;
+ if (lp && (lp->li_flags & XFS_LI_IN_AIL)) {
+ if (!xfs_ilock_nowait(ip1, xfs_lock_inumorder(lock_mode, 1))) {
+ xfs_iunlock(ip0, lock_mode);
+ if ((++attempts % 5) == 0)
+ delay(1); /* Don't just spin the CPU */
+ goto again;
+ }
+ } else {
+ xfs_ilock(ip1, xfs_lock_inumorder(lock_mode, 1));
+ }
+}
+
int
xfs_remove(
xfs_inode_t *dp,
goto out_trans_cancel;
}
- error = xfs_lock_dir_and_entry(dp, ip);
- if (error)
- goto out_trans_cancel;
+ xfs_lock_two_inodes(dp, ip, XFS_ILOCK_EXCL);
/*
* At this point, we've gotten both the directory and the entry
}
}
- /*
- * Entry must exist since we did a lookup in xfs_lock_dir_and_entry.
- */
XFS_BMAP_INIT(&free_list, &first_block);
error = xfs_dir_removename(tp, dp, name, ip->i_ino,
&first_block, &free_list, resblks);
{
xfs_mount_t *mp = tdp->i_mount;
xfs_trans_t *tp;
- xfs_inode_t *ips[2];
int error;
xfs_bmap_free_t free_list;
xfs_fsblock_t first_block;
goto error_return;
}
- if (sip->i_ino < tdp->i_ino) {
- ips[0] = sip;
- ips[1] = tdp;
- } else {
- ips[0] = tdp;
- ips[1] = sip;
- }
-
- xfs_lock_inodes(ips, 2, XFS_ILOCK_EXCL);
+ xfs_lock_two_inodes(sip, tdp, XFS_ILOCK_EXCL);
/*
* Increment vnode ref counts since xfs_trans_commit &
xfs_reclaim(
xfs_inode_t *ip)
{
- bhv_vnode_t *vp = XFS_ITOV(ip);
xfs_itrace_entry(ip);
- ASSERT(!VN_MAPPED(vp));
+ ASSERT(!VN_MAPPED(VFS_I(ip)));
/* bad inode, get out here ASAP */
- if (VN_BAD(vp)) {
+ if (VN_BAD(VFS_I(ip))) {
xfs_ireclaim(ip);
return 0;
}
XFS_MOUNT_ILOCK(mp);
spin_lock(&ip->i_flags_lock);
__xfs_iflags_set(ip, XFS_IRECLAIMABLE);
- vn_to_inode(vp)->i_private = NULL;
+ VFS_I(ip)->i_private = NULL;
ip->i_vnode = NULL;
spin_unlock(&ip->i_flags_lock);
list_add_tail(&ip->i_reclaim, &mp->m_del_inodes);
int sync_mode)
{
xfs_perag_t *pag = xfs_get_perag(ip->i_mount, ip->i_ino);
- bhv_vnode_t *vp = XFS_ITOV_NULL(ip);
+ struct inode *vp = VFS_I(ip);
if (vp && VN_BAD(vp))
goto reclaim;
xfs_off_t len,
int attr_flags)
{
- bhv_vnode_t *vp;
int committed;
int done;
xfs_off_t end_dmi_offset;
xfs_trans_t *tp;
int need_iolock = 1;
- vp = XFS_ITOV(ip);
mp = ip->i_mount;
xfs_itrace_entry(ip);
rounding = max_t(uint, 1 << mp->m_sb.sb_blocklog, PAGE_CACHE_SIZE);
ioffset = offset & ~(rounding - 1);
- if (VN_CACHED(vp) != 0) {
+ if (VN_CACHED(VFS_I(ip)) != 0) {
xfs_inval_cached_trace(ip, ioffset, -1, ioffset, -1);
error = xfs_flushinval_pages(ip, ioffset, -1, FI_REMAPF_LOCKED);
if (error)
#define INIT_COMPLETION(x) ((x).done = 0)
+
+/**
+ * try_wait_for_completion - try to decrement a completion without blocking
+ * @x: completion structure
+ *
+ * Returns: 0 if a decrement cannot be done without blocking
+ * 1 if a decrement succeeded.
+ *
+ * If a completion is being used as a counting completion,
+ * attempt to decrement the counter without blocking. This
+ * enables us to avoid waiting if the resource the completion
+ * is protecting is not available.
+ */
+static inline bool try_wait_for_completion(struct completion *x)
+{
+ int ret = 1;
+
+ spin_lock_irq(&x->wait.lock);
+ if (!x->done)
+ ret = 0;
+ else
+ x->done--;
+ spin_unlock_irq(&x->wait.lock);
+ return ret;
+}
+
+/**
+ * completion_done - Test to see if a completion has any waiters
+ * @x: completion structure
+ *
+ * Returns: 0 if there are waiters (wait_for_completion() in progress)
+ * 1 if there are no waiters.
+ *
+ */
+static inline bool completion_done(struct completion *x)
+{
+ int ret = 1;
+
+ spin_lock_irq(&x->wait.lock);
+ if (!x->done)
+ ret = 0;
+ spin_unlock_irq(&x->wait.lock);
+ return ret;
+}
+
#endif
projects / linux-2.6 / commitdiff