Also remove the now dead behavior code.
SGI-PV: 969608
SGI-Modid: xfs-linux-melb:xfs-kern:29505a
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
xfs_alloc_btree.o \
xfs_attr.o \
xfs_attr_leaf.o \
- xfs_behavior.o \
xfs_bit.o \
xfs_bmap.o \
xfs_bmap_btree.o \
xfs_trans_item.o \
xfs_utils.o \
xfs_vfsops.o \
- xfs_vfsops_bhv.o \
xfs_vnodeops.o \
xfs_rw.o \
xfs_dmops.o \
#include "xfs_vnodeops.h"
#include "xfs_bmap_btree.h"
#include "xfs_inode.h"
+#include "xfs_vfsops.h"
static struct dentry dotdot = { .d_name.name = "..", .d_name.len = 2, };
bhv_vnode_t *vp;
struct inode *inode;
struct dentry *result;
- bhv_vfs_t *vfsp = vfs_from_sb(sb);
int error;
- error = bhv_vfs_vget(vfsp, &vp, (fid_t *)data);
+ error = xfs_vget(XFS_M(sb), &vp, (fid_t *)data);
if (error || vp == NULL)
return ERR_PTR(-ESTALE) ;
#include <asm/byteorder.h>
#include <asm/unaligned.h>
-#include <xfs_behavior.h>
#include <xfs_vfs.h>
#include <xfs_cred.h>
#include <xfs_vnode.h>
#ifndef __XFS_LRW_H__
#define __XFS_LRW_H__
-struct bhv_desc;
struct xfs_mount;
struct xfs_iocore;
struct xfs_inode;
#include "xfs_buf_item.h"
#include "xfs_utils.h"
#include "xfs_vnodeops.h"
+#include "xfs_vfsops.h"
#include "xfs_version.h"
#include <linux/namei.h>
xfs_initialize_vnode(
struct xfs_mount *mp,
bhv_vnode_t *vp,
- struct xfs_inode *ip,
- int unlock)
+ struct xfs_inode *ip)
{
struct inode *inode = vn_to_inode(vp);
* second time once the inode is properly set up, and then we can
* finish our work.
*/
- if (ip->i_d.di_mode != 0 && unlock && (inode->i_state & I_NEW)) {
+ if (ip->i_d.di_mode != 0 && (inode->i_state & I_NEW)) {
xfs_revalidate_inode(mp, vp, ip);
xfs_set_inodeops(inode);
int error;
if (!(vfsp->vfs_flag & VFS_RDONLY))
- error = bhv_vfs_sync(vfsp, SYNC_FSDATA | SYNC_BDFLUSH | \
- SYNC_ATTR | SYNC_REFCACHE | SYNC_SUPER,
- NULL);
+ error = xfs_sync(XFS_VFSTOM(vfsp), SYNC_FSDATA | SYNC_BDFLUSH | \
+ SYNC_ATTR | SYNC_REFCACHE | SYNC_SUPER);
vfsp->vfs_sync_seq++;
wake_up(&vfsp->vfs_wait_single_sync_task);
}
struct super_block *sb)
{
bhv_vfs_t *vfsp = vfs_from_sb(sb);
+ struct xfs_mount *mp = XFS_M(sb);
int error;
xfs_fs_stop_syncd(vfsp);
- bhv_vfs_sync(vfsp, SYNC_ATTR | SYNC_DELWRI, NULL);
- error = bhv_vfs_unmount(vfsp, 0, NULL);
+ xfs_sync(mp, SYNC_ATTR | SYNC_DELWRI);
+ error = xfs_unmount(mp, 0, NULL);
if (error) {
printk("XFS: unmount got error=%d\n", error);
printk("%s: vfs=0x%p left dangling!\n", __FUNCTION__, vfsp);
struct super_block *sb)
{
if (!(sb->s_flags & MS_RDONLY))
- bhv_vfs_sync(vfs_from_sb(sb), SYNC_FSDATA, NULL);
+ xfs_sync(XFS_M(sb), SYNC_FSDATA);
sb->s_dirt = 0;
}
int wait)
{
bhv_vfs_t *vfsp = vfs_from_sb(sb);
+ struct xfs_mount *mp = XFS_M(sb);
int error;
int flags;
} else
flags = SYNC_FSDATA | (wait ? SYNC_WAIT : 0);
- error = bhv_vfs_sync(vfsp, flags, NULL);
+ error = xfs_sync(mp, flags);
sb->s_dirt = 0;
if (unlikely(laptop_mode)) {
struct dentry *dentry,
struct kstatfs *statp)
{
- return -bhv_vfs_statvfs(vfs_from_sb(dentry->d_sb), statp,
+ return -xfs_statvfs(XFS_M(dentry->d_sb), statp,
vn_from_inode(dentry->d_inode));
}
int *flags,
char *options)
{
- bhv_vfs_t *vfsp = vfs_from_sb(sb);
+ struct xfs_mount *mp = XFS_M(sb);
struct xfs_mount_args *args = xfs_args_allocate(sb, 0);
int error;
- error = bhv_vfs_parseargs(vfsp, options, args, 1);
+ error = xfs_parseargs(mp, options, args, 1);
if (!error)
- error = bhv_vfs_mntupdate(vfsp, flags, args);
+ error = xfs_mntupdate(mp, flags, args);
kmem_free(args, sizeof(*args));
return -error;
}
xfs_fs_lockfs(
struct super_block *sb)
{
- bhv_vfs_freeze(vfs_from_sb(sb));
+ xfs_freeze(XFS_M(sb));
}
STATIC int
struct seq_file *m,
struct vfsmount *mnt)
{
- return -bhv_vfs_showargs(vfs_from_sb(mnt->mnt_sb), m);
+ return -xfs_showargs(XFS_M(mnt->mnt_sb), m);
}
STATIC int
{
struct inode *rootvp;
struct bhv_vfs *vfsp = vfs_allocate(sb);
+ struct xfs_mount *mp = NULL;
struct xfs_mount_args *args = xfs_args_allocate(sb, silent);
struct kstatfs statvfs;
int error;
- bhv_insert_all_vfsops(vfsp);
+ mp = xfs_mount_init();
+ mp->m_vfsp = vfsp;
+ vfsp->vfs_mount = mp;
- error = bhv_vfs_parseargs(vfsp, (char *)data, args, 0);
- if (error) {
- bhv_remove_all_vfsops(vfsp, 1);
+ error = xfs_parseargs(mp, (char *)data, args, 0);
+ if (error)
goto fail_vfsop;
- }
sb_min_blocksize(sb, BBSIZE);
sb->s_export_op = &xfs_export_operations;
sb->s_qcop = &xfs_quotactl_operations;
sb->s_op = &xfs_super_operations;
- error = bhv_vfs_mount(vfsp, args, NULL);
- if (error) {
- bhv_remove_all_vfsops(vfsp, 1);
+ error = xfs_mount(mp, args, NULL);
+ if (error)
goto fail_vfsop;
- }
- error = bhv_vfs_statvfs(vfsp, &statvfs, NULL);
+ error = xfs_statvfs(mp, &statvfs, NULL);
if (error)
goto fail_unmount;
sb->s_time_gran = 1;
set_posix_acl_flag(sb);
- error = bhv_vfs_root(vfsp, &rootvp);
+ error = xfs_root(mp, &rootvp);
if (error)
goto fail_unmount;
}
fail_unmount:
- bhv_vfs_unmount(vfsp, 0, NULL);
+ xfs_unmount(mp, 0, NULL);
fail_vfsop:
vfs_deallocate(vfsp);
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 *);
struct bhv_vfs *vfsp;
vfsp = kmem_zalloc(sizeof(bhv_vfs_t), KM_SLEEP);
- bhv_head_init(VFS_BHVHEAD(vfsp), "vfs");
INIT_LIST_HEAD(&vfsp->vfs_sync_list);
spin_lock_init(&vfsp->vfs_sync_lock);
init_waitqueue_head(&vfsp->vfs_wait_single_sync_task);
vfs_deallocate(
struct bhv_vfs *vfsp)
{
- bhv_head_destroy(VFS_BHVHEAD(vfsp));
kmem_free(vfsp, sizeof(bhv_vfs_t));
}
-
-void
-vfs_insertops(
- struct bhv_vfs *vfsp,
- struct bhv_module_vfsops *vfsops)
-{
- struct bhv_desc *bdp;
-
- bdp = kmem_alloc(sizeof(struct bhv_desc), KM_SLEEP);
- bhv_desc_init(bdp, NULL, vfsp, vfsops);
- bhv_insert(&vfsp->vfs_bh, bdp);
-}
-
-void
-vfs_insertbhv(
- struct bhv_vfs *vfsp,
- struct bhv_desc *bdp,
- struct bhv_vfsops *vfsops,
- void *mount)
-{
- bhv_desc_init(bdp, mount, vfsp, vfsops);
- bhv_insert_initial(&vfsp->vfs_bh, bdp);
-}
-
-void
-bhv_remove_vfsops(
- struct bhv_vfs *vfsp,
- int pos)
-{
- struct bhv_desc *bhv;
-
- bhv = bhv_lookup_range(&vfsp->vfs_bh, pos, pos);
- if (!bhv)
- return;
- bhv_remove(&vfsp->vfs_bh, bhv);
- kmem_free(bhv, sizeof(*bhv));
-}
-
-void
-bhv_remove_all_vfsops(
- struct bhv_vfs *vfsp,
- int freebase)
-{
- struct xfs_mount *mp;
-
- bhv_remove_vfsops(vfsp, VFS_POSITION_QM);
- if (!freebase)
- return;
- mp = XFS_VFSTOM(vfsp);
- VFS_REMOVEBHV(vfsp, &mp->m_bhv);
- xfs_mount_free(mp, 0);
- kmem_free(mp, sizeof(xfs_mount_t));
-}
-
-void
-bhv_insert_all_vfsops(
- struct bhv_vfs *vfsp)
-{
- struct xfs_mount *mp;
-
- mp = xfs_mount_init();
- vfs_insertbhv(vfsp, &mp->m_bhv, &xfs_vfsops, mp);
- vfs_insertdmapi(vfsp);
- vfs_insertquota(vfsp);
-}
struct seq_file;
struct super_block;
struct xfs_inode;
+struct xfs_mount;
struct xfs_mount_args;
typedef struct kstatfs bhv_statvfs_t;
} bhv_vfs_sync_work_t;
typedef struct bhv_vfs {
+ struct xfs_mount *vfs_mount;
u_int vfs_flag; /* flags */
xfs_fsid_t vfs_fsid; /* file system ID */
xfs_fsid_t *vfs_altfsid; /* An ID fixed for life of FS */
- bhv_head_t vfs_bh; /* head of vfs behavior chain */
struct super_block *vfs_super; /* generic superblock pointer */
struct task_struct *vfs_sync_task; /* generalised sync thread */
bhv_vfs_sync_work_t vfs_sync_work; /* work item for VFS_SYNC */
wait_queue_head_t vfs_wait_single_sync_task;
} bhv_vfs_t;
-#define bhvtovfs(bdp) ( (struct bhv_vfs *)BHV_VOBJ(bdp) )
-#define bhvtovfsops(bdp) ( (struct bhv_vfsops *)BHV_OPS(bdp) )
-#define VFS_BHVHEAD(vfs) ( &(vfs)->vfs_bh )
-#define VFS_REMOVEBHV(vfs, bdp) ( bhv_remove(VFS_BHVHEAD(vfs), bdp) )
-
-#define VFS_POSITION_BASE BHV_POSITION_BASE /* chain bottom */
-#define VFS_POSITION_TOP BHV_POSITION_TOP /* chain top */
-#define VFS_POSITION_INVALID BHV_POSITION_INVALID /* invalid pos. num */
-
-typedef enum {
- VFS_BHV_UNKNOWN, /* not specified */
- VFS_BHV_XFS, /* xfs */
- VFS_BHV_QM, /* quota manager */
- VFS_BHV_IO, /* IO path */
- VFS_BHV_END /* housekeeping end-of-range */
-} bhv_vfs_type_t;
-
-#define VFS_POSITION_XFS (BHV_POSITION_BASE)
-#define VFS_POSITION_QM (VFS_POSITION_BASE+20)
-#define VFS_POSITION_IO (VFS_POSITION_BASE+30)
-
#define VFS_RDONLY 0x0001 /* read-only vfs */
#define VFS_GRPID 0x0002 /* group-ID assigned from directory */
#define VFS_DMI 0x0004 /* filesystem has the DMI enabled */
#define SHUTDOWN_REMOTE_REQ 0x0010 /* shutdown came from remote cell */
#define SHUTDOWN_DEVICE_REQ 0x0020 /* failed all paths to the device */
-typedef int (*vfs_mount_t)(bhv_desc_t *,
- struct xfs_mount_args *, struct cred *);
-typedef int (*vfs_parseargs_t)(bhv_desc_t *, char *,
- struct xfs_mount_args *, int);
-typedef int (*vfs_showargs_t)(bhv_desc_t *, struct seq_file *);
-typedef int (*vfs_unmount_t)(bhv_desc_t *, int, struct cred *);
-typedef int (*vfs_mntupdate_t)(bhv_desc_t *, int *,
- struct xfs_mount_args *);
-typedef int (*vfs_root_t)(bhv_desc_t *, struct inode **);
-typedef int (*vfs_statvfs_t)(bhv_desc_t *, bhv_statvfs_t *,
- struct inode *);
-typedef int (*vfs_sync_t)(bhv_desc_t *, int, struct cred *);
-typedef int (*vfs_vget_t)(bhv_desc_t *, struct inode **, struct fid *);
-typedef void (*vfs_init_vnode_t)(bhv_desc_t *,
- struct inode *, struct xfs_inode *, int);
-typedef void (*vfs_force_shutdown_t)(bhv_desc_t *, int, char *, int);
-typedef void (*vfs_freeze_t)(bhv_desc_t *);
-
-typedef struct bhv_vfsops {
- bhv_position_t vf_position; /* behavior chain position */
- vfs_mount_t vfs_mount; /* mount file system */
- vfs_parseargs_t vfs_parseargs; /* parse mount options */
- vfs_showargs_t vfs_showargs; /* unparse mount options */
- vfs_unmount_t vfs_unmount; /* unmount file system */
- vfs_mntupdate_t vfs_mntupdate; /* update file system options */
- vfs_root_t vfs_root; /* get root vnode */
- vfs_statvfs_t vfs_statvfs; /* file system statistics */
- vfs_sync_t vfs_sync; /* flush files */
- vfs_vget_t vfs_vget; /* get vnode from fid */
- vfs_init_vnode_t vfs_init_vnode; /* initialize a new vnode */
- vfs_force_shutdown_t vfs_force_shutdown; /* crash and burn */
- vfs_freeze_t vfs_freeze; /* freeze fs for snapshot */
-} bhv_vfsops_t;
-
-/*
- * Virtual filesystem operations, operating from head bhv.
- */
-#define VFSHEAD(v) ((v)->vfs_bh.bh_first)
-#define bhv_vfs_mount(v, ma,cr) vfs_mount(VFSHEAD(v), ma,cr)
-#define bhv_vfs_parseargs(v, o,ma,f) vfs_parseargs(VFSHEAD(v), o,ma,f)
-#define bhv_vfs_showargs(v, m) vfs_showargs(VFSHEAD(v), m)
-#define bhv_vfs_unmount(v, f,cr) vfs_unmount(VFSHEAD(v), f,cr)
-#define bhv_vfs_mntupdate(v, fl,args) vfs_mntupdate(VFSHEAD(v), fl,args)
-#define bhv_vfs_root(v, vpp) vfs_root(VFSHEAD(v), vpp)
-#define bhv_vfs_statvfs(v, sp,vp) vfs_statvfs(VFSHEAD(v), sp,vp)
-#define bhv_vfs_sync(v, flag,cr) vfs_sync(VFSHEAD(v), flag,cr)
-#define bhv_vfs_vget(v, vpp,fidp) vfs_vget(VFSHEAD(v), vpp,fidp)
-#define bhv_vfs_init_vnode(v, vp,b,ul) vfs_init_vnode(VFSHEAD(v), vp,b,ul)
-#define bhv_vfs_force_shutdown(v,u,f,l) vfs_force_shutdown(VFSHEAD(v), u,f,l)
-#define bhv_vfs_freeze(v) vfs_freeze(VFSHEAD(v))
-
-/*
- * Virtual filesystem operations, operating from next bhv.
- */
-#define bhv_next_vfs_mount(b, ma,cr) vfs_mount(b, ma,cr)
-#define bhv_next_vfs_parseargs(b, o,ma,f) vfs_parseargs(b, o,ma,f)
-#define bhv_next_vfs_showargs(b, m) vfs_showargs(b, m)
-#define bhv_next_vfs_unmount(b, f,cr) vfs_unmount(b, f,cr)
-#define bhv_next_vfs_mntupdate(b, fl,args) vfs_mntupdate(b, fl, args)
-#define bhv_next_vfs_root(b, vpp) vfs_root(b, vpp)
-#define bhv_next_vfs_statvfs(b, sp,vp) vfs_statvfs(b, sp,vp)
-#define bhv_next_vfs_sync(b, flag,cr) vfs_sync(b, flag,cr)
-#define bhv_next_vfs_vget(b, vpp,fidp) vfs_vget(b, vpp,fidp)
-#define bhv_next_vfs_init_vnode(b, vp,b2,ul) vfs_init_vnode(b, vp,b2,ul)
-#define bhv_next_force_shutdown(b, fl,f,l) vfs_force_shutdown(b, fl,f,l)
-#define bhv_next_vfs_freeze(b) vfs_freeze(b)
-
-extern int vfs_mount(bhv_desc_t *, struct xfs_mount_args *, struct cred *);
-extern int vfs_parseargs(bhv_desc_t *, char *, struct xfs_mount_args *, int);
-extern int vfs_showargs(bhv_desc_t *, struct seq_file *);
-extern int vfs_unmount(bhv_desc_t *, int, struct cred *);
-extern int vfs_mntupdate(bhv_desc_t *, int *, struct xfs_mount_args *);
-extern int vfs_root(bhv_desc_t *, struct inode **);
-extern int vfs_statvfs(bhv_desc_t *, bhv_statvfs_t *, struct inode *);
-extern int vfs_sync(bhv_desc_t *, int, struct cred *);
-extern int vfs_vget(bhv_desc_t *, struct inode **, struct fid *);
-extern void vfs_init_vnode(bhv_desc_t *, struct inode *, struct xfs_inode *, int);
-extern void vfs_force_shutdown(bhv_desc_t *, int, char *, int);
-extern void vfs_freeze(bhv_desc_t *);
-
#define vfs_test_for_freeze(vfs) ((vfs)->vfs_super->s_frozen)
#define vfs_wait_for_freeze(vfs,l) vfs_check_frozen((vfs)->vfs_super, (l))
-typedef struct bhv_module_vfsops {
- struct bhv_vfsops bhv_common;
- void * bhv_custom;
-} bhv_module_vfsops_t;
-
-#define vfs_bhv_lookup(v, id) (bhv_lookup_range(&(v)->vfs_bh, (id), (id)))
-#define vfs_bhv_custom(b) (((bhv_module_vfsops_t*)BHV_OPS(b))->bhv_custom)
-#define vfs_bhv_set_custom(b,o) ((b)->bhv_custom = (void *)(o))
-#define vfs_bhv_clr_custom(b) ((b)->bhv_custom = NULL)
-
extern bhv_vfs_t *vfs_allocate(struct super_block *);
extern bhv_vfs_t *vfs_from_sb(struct super_block *);
extern void vfs_deallocate(bhv_vfs_t *);
-extern void vfs_insertbhv(bhv_vfs_t *, bhv_desc_t *, bhv_vfsops_t *, void *);
-
-extern void vfs_insertops(bhv_vfs_t *, bhv_module_vfsops_t *);
-
-extern void bhv_insert_all_vfsops(struct bhv_vfs *);
-extern void bhv_remove_all_vfsops(struct bhv_vfs *, int);
-extern void bhv_remove_vfsops(struct bhv_vfs *, int);
#endif /* __XFS_VFS_H__ */
char *f,
int l)
{
- bhv_vfs_t *vfsp = XFS_MTOVFS(ip->i_mount);
-
if (unlikely(error == -ENODEV))
- bhv_vfs_force_shutdown(vfsp, SHUTDOWN_DEVICE_REQ, f, l);
+ xfs_do_force_shutdown(ip->i_mount, SHUTDOWN_DEVICE_REQ, f, l);
}
bhv_vnode_t *
+++ /dev/null
-/*
- * Copyright (c) 2000-2003,2005 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
- */
-#include "xfs.h"
-
-/*
- * Source file used to associate/disassociate behaviors with virtualized
- * objects. See xfs_behavior.h for more information about behaviors, etc.
- *
- * The implementation is split between functions in this file and macros
- * in xfs_behavior.h.
- */
-
-/*
- * Insert a new behavior descriptor into a behavior chain.
- *
- * The behavior chain is ordered based on the 'position' number which
- * lives in the first field of the ops vector (higher numbers first).
- *
- * Attempts to insert duplicate ops result in an EINVAL return code.
- * Otherwise, return 0 to indicate success.
- */
-int
-bhv_insert(bhv_head_t *bhp, bhv_desc_t *bdp)
-{
- bhv_desc_t *curdesc, *prev;
- int position;
-
- /*
- * Validate the position value of the new behavior.
- */
- position = BHV_POSITION(bdp);
- ASSERT(position >= BHV_POSITION_BASE && position <= BHV_POSITION_TOP);
-
- /*
- * Find location to insert behavior. Check for duplicates.
- */
- prev = NULL;
- for (curdesc = bhp->bh_first;
- curdesc != NULL;
- curdesc = curdesc->bd_next) {
-
- /* Check for duplication. */
- if (curdesc->bd_ops == bdp->bd_ops) {
- ASSERT(0);
- return EINVAL;
- }
-
- /* Find correct position */
- if (position >= BHV_POSITION(curdesc)) {
- ASSERT(position != BHV_POSITION(curdesc));
- break; /* found it */
- }
-
- prev = curdesc;
- }
-
- if (prev == NULL) {
- /* insert at front of chain */
- bdp->bd_next = bhp->bh_first;
- bhp->bh_first = bdp;
- } else {
- /* insert after prev */
- bdp->bd_next = prev->bd_next;
- prev->bd_next = bdp;
- }
-
- return 0;
-}
-
-/*
- * Remove a behavior descriptor from a position in a behavior chain;
- * the position is guaranteed not to be the first position.
- * Should only be called by the bhv_remove() macro.
- */
-void
-bhv_remove_not_first(bhv_head_t *bhp, bhv_desc_t *bdp)
-{
- bhv_desc_t *curdesc, *prev;
-
- ASSERT(bhp->bh_first != NULL);
- ASSERT(bhp->bh_first->bd_next != NULL);
-
- prev = bhp->bh_first;
- for (curdesc = bhp->bh_first->bd_next;
- curdesc != NULL;
- curdesc = curdesc->bd_next) {
-
- if (curdesc == bdp)
- break; /* found it */
- prev = curdesc;
- }
-
- ASSERT(curdesc == bdp);
- prev->bd_next = bdp->bd_next; /* remove from after prev */
-}
-
-/*
- * Looks for the first behavior within a specified range of positions.
- * Return the associated behavior descriptor. Or NULL, if none found.
- */
-bhv_desc_t *
-bhv_lookup_range(bhv_head_t *bhp, int low, int high)
-{
- bhv_desc_t *curdesc;
-
- for (curdesc = bhp->bh_first;
- curdesc != NULL;
- curdesc = curdesc->bd_next) {
-
- int position = BHV_POSITION(curdesc);
-
- if (position <= high) {
- if (position >= low)
- return curdesc;
- return NULL;
- }
- }
-
- return NULL;
-}
-
-/*
- * Return the base behavior in the chain, or NULL if the chain
- * is empty.
- *
- * The caller has not read locked the behavior chain, so acquire the
- * lock before traversing the chain.
- */
-bhv_desc_t *
-bhv_base(bhv_head_t *bhp)
-{
- bhv_desc_t *curdesc;
-
- for (curdesc = bhp->bh_first;
- curdesc != NULL;
- curdesc = curdesc->bd_next) {
-
- if (curdesc->bd_next == NULL) {
- return curdesc;
- }
- }
-
- return NULL;
-}
-
-void
-bhv_head_init(
- bhv_head_t *bhp,
- char *name)
-{
- bhp->bh_first = NULL;
-}
-
-void
-bhv_insert_initial(
- bhv_head_t *bhp,
- bhv_desc_t *bdp)
-{
- ASSERT(bhp->bh_first == NULL);
- (bhp)->bh_first = bdp;
-}
-
-void
-bhv_head_destroy(
- bhv_head_t *bhp)
-{
- ASSERT(bhp->bh_first == NULL);
-}
+++ /dev/null
-/*
- * Copyright (c) 2000-2003,2005 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_BEHAVIOR_H__
-#define __XFS_BEHAVIOR_H__
-
-/*
- * Header file used to associate behaviors with virtualized objects.
- *
- * A virtualized object is an internal, virtualized representation of
- * OS entities such as persistent files, processes, or sockets. Examples
- * of virtualized objects include vnodes, vprocs, and vsockets. Often
- * a virtualized object is referred to simply as an "object."
- *
- * A behavior is essentially an implementation layer associated with
- * an object. Multiple behaviors for an object are chained together,
- * the order of chaining determining the order of invocation. Each
- * behavior of a given object implements the same set of interfaces
- * (e.g., the VOP interfaces).
- *
- * Behaviors may be dynamically inserted into an object's behavior chain,
- * such that the addition is transparent to consumers that already have
- * references to the object. Typically, a given behavior will be inserted
- * at a particular location in the behavior chain. Insertion of new
- * behaviors is synchronized with operations-in-progress (oip's) so that
- * the oip's always see a consistent view of the chain.
- *
- * The term "interposition" is used to refer to the act of inserting
- * a behavior such that it interposes on (i.e., is inserted in front
- * of) a particular other behavior. A key example of this is when a
- * system implementing distributed single system image wishes to
- * interpose a distribution layer (providing distributed coherency)
- * in front of an object that is otherwise only accessed locally.
- *
- * Note that the traditional vnode/inode combination is simply a virtualized
- * object that has exactly one associated behavior.
- *
- * Behavior synchronization is logic which is necessary under certain
- * circumstances that there is no conflict between ongoing operations
- * traversing the behavior chain and those dynamically modifying the
- * behavior chain. Because behavior synchronization adds extra overhead
- * to virtual operation invocation, we want to restrict, as much as
- * we can, the requirement for this extra code, to those situations
- * in which it is truly necessary.
- *
- * Behavior synchronization is needed whenever there's at least one class
- * of object in the system for which:
- * 1) multiple behaviors for a given object are supported,
- * -- AND --
- * 2a) insertion of a new behavior can happen dynamically at any time during
- * the life of an active object,
- * -- AND --
- * 3a) insertion of a new behavior needs to synchronize with existing
- * ops-in-progress.
- * -- OR --
- * 3b) multiple different behaviors can be dynamically inserted at
- * any time during the life of an active object
- * -- OR --
- * 3c) removal of a behavior can occur at any time during the life of
- * an active object.
- * -- OR --
- * 2b) removal of a behavior can occur at any time during the life of an
- * active object
- *
- */
-
-/*
- * Behavior head. Head of the chain of behaviors.
- * Contained within each virtualized object data structure.
- */
-typedef struct bhv_head {
- struct bhv_desc *bh_first; /* first behavior in chain */
-} bhv_head_t;
-
-/*
- * Behavior descriptor. Descriptor associated with each behavior.
- * Contained within the behavior's private data structure.
- */
-typedef struct bhv_desc {
- void *bd_pdata; /* private data for this behavior */
- void *bd_vobj; /* virtual object associated with */
- void *bd_ops; /* ops for this behavior */
- struct bhv_desc *bd_next; /* next behavior in chain */
-} bhv_desc_t;
-
-/*
- * Behavior identity field. A behavior's identity determines the position
- * where it lives within a behavior chain, and it's always the first field
- * of the behavior's ops vector. The optional id field further identifies the
- * subsystem responsible for the behavior.
- */
-typedef struct bhv_identity {
- __u16 bi_id; /* owning subsystem id */
- __u16 bi_position; /* position in chain */
-} bhv_identity_t;
-
-typedef bhv_identity_t bhv_position_t;
-
-#define BHV_IDENTITY_INIT(id,pos) {id, pos}
-#define BHV_IDENTITY_INIT_POSITION(pos) BHV_IDENTITY_INIT(0, pos)
-
-/*
- * Define boundaries of position values.
- */
-#define BHV_POSITION_INVALID 0 /* invalid position number */
-#define BHV_POSITION_BASE 1 /* base (last) implementation layer */
-#define BHV_POSITION_TOP 63 /* top (first) implementation layer */
-
-/*
- * Plumbing macros.
- */
-#define BHV_HEAD_FIRST(bhp) (ASSERT((bhp)->bh_first), (bhp)->bh_first)
-#define BHV_NEXT(bdp) (ASSERT((bdp)->bd_next), (bdp)->bd_next)
-#define BHV_NEXTNULL(bdp) ((bdp)->bd_next)
-#define BHV_VOBJ(bdp) (ASSERT((bdp)->bd_vobj), (bdp)->bd_vobj)
-#define BHV_VOBJNULL(bdp) ((bdp)->bd_vobj)
-#define BHV_PDATA(bdp) (bdp)->bd_pdata
-#define BHV_OPS(bdp) (bdp)->bd_ops
-#define BHV_IDENTITY(bdp) ((bhv_identity_t *)(bdp)->bd_ops)
-#define BHV_POSITION(bdp) (BHV_IDENTITY(bdp)->bi_position)
-
-extern void bhv_head_init(bhv_head_t *, char *);
-extern void bhv_head_destroy(bhv_head_t *);
-extern int bhv_insert(bhv_head_t *, bhv_desc_t *);
-extern void bhv_insert_initial(bhv_head_t *, bhv_desc_t *);
-
-/*
- * Initialize a new behavior descriptor.
- * Arguments:
- * bdp - pointer to behavior descriptor
- * pdata - pointer to behavior's private data
- * vobj - pointer to associated virtual object
- * ops - pointer to ops for this behavior
- */
-#define bhv_desc_init(bdp, pdata, vobj, ops) \
- { \
- (bdp)->bd_pdata = pdata; \
- (bdp)->bd_vobj = vobj; \
- (bdp)->bd_ops = ops; \
- (bdp)->bd_next = NULL; \
- }
-
-/*
- * Remove a behavior descriptor from a behavior chain.
- */
-#define bhv_remove(bhp, bdp) \
- { \
- if ((bhp)->bh_first == (bdp)) { \
- /* \
- * Remove from front of chain. \
- * Atomic wrt oip's. \
- */ \
- (bhp)->bh_first = (bdp)->bd_next; \
- } else { \
- /* remove from non-front of chain */ \
- bhv_remove_not_first(bhp, bdp); \
- } \
- (bdp)->bd_vobj = NULL; \
- }
-
-/*
- * Behavior module prototypes.
- */
-extern void bhv_remove_not_first(bhv_head_t *bhp, bhv_desc_t *bdp);
-extern bhv_desc_t * bhv_lookup_range(bhv_head_t *bhp, int low, int high);
-extern bhv_desc_t * bhv_base(bhv_head_t *bhp);
-
-/* No bhv locking on Linux */
-#define bhv_base_unlocked bhv_base
-
-#endif /* __XFS_BEHAVIOR_H__ */
* 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.
*/
- bhv_vfs_init_vnode(XFS_MTOVFS(mp), vp, ip, 1);
-
+ xfs_initialize_vnode(mp, vp, ip);
return 0;
}
XFS_STATS_INC(xs_ig_attempts);
retry:
- if ((inode = iget_locked(XFS_MTOVFS(mp)->vfs_super, ino))) {
+ inode = iget_locked(XFS_MTOVFS(mp)->vfs_super, ino);
+ if (inode) {
xfs_inode_t *ip;
vp = vn_from_inode(inode);
xfs_trans_log_inode(tp, ip, flags);
/* now that we have an i_mode we can setup inode ops and unlock */
- bhv_vfs_init_vnode(XFS_MTOVFS(tp->t_mountp), vp, ip, 1);
+ xfs_initialize_vnode(tp->t_mountp, vp, ip);
*ipp = ip;
return 0;
*/
void
xfs_mount_free(
- xfs_mount_t *mp,
- int remove_bhv)
+ xfs_mount_t *mp)
{
if (mp->m_perag) {
int agno;
if (mp->m_logname != NULL)
kmem_free(mp->m_logname, strlen(mp->m_logname) + 1);
- if (remove_bhv) {
- struct bhv_vfs *vfsp = XFS_MTOVFS(mp);
-
- bhv_remove_all_vfsops(vfsp, 0);
- VFS_REMOVEBHV(vfsp, &mp->m_bhv);
- }
-
xfs_icsb_destroy_counters(mp);
}
xfs_errortag_clearall_umount(fsid, mp->m_fsname, 0);
#endif
XFS_IODONE(vfsp);
- xfs_mount_free(mp, 1);
+ xfs_mount_free(mp);
return 0;
}
struct xfs_swapext;
struct xfs_mru_cache;
-extern struct bhv_vfsops xfs_vfsops;
-
#define AIL_LOCK_T lock_t
#define AIL_LOCKINIT(x,y) spinlock_init(x,y)
#define AIL_LOCK_DESTROY(x) spinlock_destroy(x)
#endif
typedef struct xfs_mount {
- bhv_desc_t m_bhv; /* vfs xfs behavior */
+ struct bhv_vfs *m_vfsp;
xfs_tid_t m_tid; /* next unused tid for fs */
AIL_LOCK_T m_ail_lock; /* fs AIL mutex */
xfs_ail_entry_t m_ail; /* fs active log item list */
#define XFS_LAST_UNMOUNT_WAS_CLEAN(mp) \
((mp)->m_flags & XFS_MOUNT_WAS_CLEAN)
#define XFS_FORCED_SHUTDOWN(mp) ((mp)->m_flags & XFS_MOUNT_FS_SHUTDOWN)
+void xfs_do_force_shutdown(struct xfs_mount *mp, int flags, char *fname,
+ int lnnum);
#define xfs_force_shutdown(m,f) \
- bhv_vfs_force_shutdown((XFS_MTOVFS(m)), f, __FILE__, __LINE__)
+ xfs_do_force_shutdown(m, f, __FILE__, __LINE__)
/*
* Flags for xfs_mountfs
#define XFS_MTOVFS(mp) xfs_mtovfs(mp)
static inline struct bhv_vfs *xfs_mtovfs(xfs_mount_t *mp)
{
- return bhvtovfs(&mp->m_bhv);
-}
-
-#define XFS_BHVTOM(bdp) xfs_bhvtom(bdp)
-static inline xfs_mount_t *xfs_bhvtom(bhv_desc_t *bdp)
-{
- return (xfs_mount_t *)BHV_PDATA(bdp);
+ return mp->m_vfsp;
}
#define XFS_VFSTOM(vfs) xfs_vfstom(vfs)
static inline xfs_mount_t *xfs_vfstom(bhv_vfs_t *vfs)
{
- return XFS_BHVTOM(bhv_lookup_range(VFS_BHVHEAD(vfs),
- VFS_POSITION_XFS, VFS_POSITION_XFS));
+ return vfs->vfs_mount;
}
#define XFS_DADDR_TO_AGNO(mp,d) xfs_daddr_to_agno(mp,d)
extern xfs_mount_t *xfs_mount_init(void);
extern void xfs_mod_sb(xfs_trans_t *, __int64_t);
extern int xfs_log_sbcount(xfs_mount_t *, uint);
-extern void xfs_mount_free(xfs_mount_t *mp, int remove_bhv);
+extern void xfs_mount_free(xfs_mount_t *mp);
extern int xfs_mountfs(struct bhv_vfs *, xfs_mount_t *mp, int);
extern void xfs_mountfs_check_barriers(xfs_mount_t *mp);
cred_t *credp)
{
struct bhv_vfs *vfsp = XFS_MTOVFS(mp);
- struct bhv_desc *p;
struct block_device *ddev, *logdev, *rtdev;
int flags = 0, error;
if (error)
return error;
- /*
- * Setup xfs_mount function vectors from available behaviors
- */
- p = vfs_bhv_lookup(vfsp, VFS_POSITION_IO);
- mp->m_io_ops = p ? *(xfs_ioops_t *) vfs_bhv_custom(p) : xfs_iocore_xfs;
+ mp->m_io_ops = xfs_iocore_xfs;
if (args->flags & XFSMNT_QUIET)
flags |= XFS_MFSI_QUIET;
}
} else if (!(vfsp->vfs_flag & VFS_RDONLY)) { /* rw -> ro */
xfs_filestream_flush(mp);
- bhv_vfs_sync(vfsp, SYNC_DATA_QUIESCE, NULL);
+ xfs_sync(mp, SYNC_DATA_QUIESCE);
xfs_attr_quiesce(mp);
vfsp->vfs_flag |= VFS_RDONLY;
}
void xfs_freeze(struct xfs_mount *mp);
void xfs_do_force_shutdown(struct xfs_mount *mp, int flags, char *fname,
int lnnum);
-struct inode *xfs_get_inode(struct xfs_mount *mp, xfs_ino_t ino, int flags);
-void xfs_initialize_vnode(struct xfs_mount *mp, bhv_vnode_t *vp,
- struct xfs_inode *ip, int unlock);
#endif /* _XFS_VFSOPS_H */
+++ /dev/null
-
-#include "xfs_linux.h"
-#include "xfs_vfsops.h"
-
-#include "xfs_inum.h"
-#include "xfs_dmapi.h"
-#include "xfs_sb.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
-#include "xfs_ag.h"
-#include "xfs_mount.h"
-
-
-STATIC int
-xfs_bhv_mount(
- struct bhv_desc *bhvp,
- struct xfs_mount_args *args,
- cred_t *credp)
-{
- return xfs_mount(XFS_BHVTOM(bhvp), args, credp);
-}
-
-STATIC int
-xfs_bhv_unmount(
- bhv_desc_t *bdp,
- int flags,
- cred_t *credp)
-{
- return xfs_unmount(XFS_BHVTOM(bdp), flags, credp);
-}
-
-STATIC int
-xfs_bhv_mntupdate(
- bhv_desc_t *bdp,
- int *flags,
- struct xfs_mount_args *args)
-{
- return xfs_mntupdate(XFS_BHVTOM(bdp), flags, args);
-}
-
-STATIC int
-xfs_bhv_root(
- bhv_desc_t *bdp,
- bhv_vnode_t **vpp)
-{
- return xfs_root(XFS_BHVTOM(bdp), vpp);
-}
-
-STATIC int
-xfs_bhv_statvfs(
- bhv_desc_t *bdp,
- bhv_statvfs_t *statp,
- bhv_vnode_t *vp)
-{
- return xfs_statvfs(XFS_BHVTOM(bdp), statp, vp);
-}
-
-STATIC int
-xfs_bhv_sync(
- bhv_desc_t *bdp,
- int flags,
- cred_t *credp)
-{
- return xfs_sync(XFS_BHVTOM(bdp), flags);
-}
-
-STATIC int
-xfs_bhv_vget(
- bhv_desc_t *bdp,
- bhv_vnode_t **vpp,
- fid_t *fidp)
-{
- return xfs_vget(XFS_BHVTOM(bdp), vpp, fidp);
-}
-
-STATIC int
-xfs_bhv_parseargs(
- struct bhv_desc *bhv,
- char *options,
- struct xfs_mount_args *args,
- int update)
-{
- return xfs_parseargs(XFS_BHVTOM(bhv), options, args, update);
-}
-
-STATIC int
-xfs_bhv_showargs(
- struct bhv_desc *bhv,
- struct seq_file *m)
-{
- return xfs_showargs(XFS_BHVTOM(bhv), m);
-}
-
-STATIC void
-xfs_bhv_freeze(
- bhv_desc_t *bdp)
-{
- return xfs_freeze(XFS_BHVTOM(bdp));
-}
-
-STATIC void
-xfs_bhv_force_shutdown(
- bhv_desc_t *bdp,
- int flags,
- char *fname,
- int lnnum)
-{
- return xfs_do_force_shutdown(XFS_BHVTOM(bdp), flags, fname, lnnum);
-}
-
-STATIC struct inode *
-xfs_bhv_get_inode(
- bhv_desc_t *bdp,
- xfs_ino_t ino,
- int flags)
-{
- return xfs_get_inode(XFS_BHVTOM(bdp), ino, flags);
-}
-
-STATIC void
-xfs_bhv_initialize_vnode(
- bhv_desc_t *bdp,
- bhv_vnode_t *vp,
- struct xfs_inode *ip,
- int unlock)
-{
- return xfs_initialize_vnode(XFS_BHVTOM(bdp), vp, ip, unlock);
-}
-
-bhv_vfsops_t xfs_vfsops = {
- BHV_IDENTITY_INIT(VFS_BHV_XFS,VFS_POSITION_XFS),
- .vfs_parseargs = xfs_bhv_parseargs,
- .vfs_showargs = xfs_bhv_showargs,
- .vfs_mount = xfs_bhv_mount,
- .vfs_unmount = xfs_bhv_unmount,
- .vfs_mntupdate = xfs_bhv_mntupdate,
- .vfs_root = xfs_bhv_root,
- .vfs_statvfs = xfs_bhv_statvfs,
- .vfs_sync = xfs_bhv_sync,
- .vfs_vget = xfs_bhv_vget,
- .vfs_get_inode = xfs_bhv_get_inode,
- .vfs_init_vnode = xfs_bhv_initialize_vnode,
- .vfs_force_shutdown = xfs_bhv_force_shutdown,
- .vfs_freeze = xfs_bhv_freeze,
-};
projects / linux-2.6 / commitdiff