#include "xfs_vnodeops.h"
#include <linux/capability.h>
+#include <linux/mount.h>
#include <linux/writeback.h>
{
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
- bhv_vnode_t *vp = XFS_ITOV(ip);
xfs_mount_t *mp = ip->i_mount;
size_t size = 0;
ssize_t ret = 0;
xfs_ilock(ip, XFS_IOLOCK_SHARED);
if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) && !(ioflags & IO_INVIS)) {
- bhv_vrwlock_t locktype = VRWLOCK_READ;
int dmflags = FILP_DELAY_FLAG(file) | DM_SEM_FLAG_RD(ioflags);
+ int iolock = XFS_IOLOCK_SHARED;
- ret = -XFS_SEND_DATA(mp, DM_EVENT_READ, vp, *offset, size,
- dmflags, &locktype);
+ ret = -XFS_SEND_DATA(mp, DM_EVENT_READ, ip, *offset, size,
+ dmflags, &iolock);
if (ret) {
xfs_iunlock(ip, XFS_IOLOCK_SHARED);
if (unlikely(ioflags & IO_ISDIRECT))
}
if (unlikely(ioflags & IO_ISDIRECT)) {
- if (VN_CACHED(vp))
+ if (inode->i_mapping->nrpages)
ret = xfs_flushinval_pages(ip, (*offset & PAGE_CACHE_MASK),
-1, FI_REMAPF_LOCKED);
mutex_unlock(&inode->i_mutex);
int flags,
int ioflags)
{
- bhv_vnode_t *vp = XFS_ITOV(ip);
xfs_mount_t *mp = ip->i_mount;
ssize_t ret;
xfs_ilock(ip, XFS_IOLOCK_SHARED);
if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) && !(ioflags & IO_INVIS)) {
- bhv_vrwlock_t locktype = VRWLOCK_READ;
+ int iolock = XFS_IOLOCK_SHARED;
int error;
- error = XFS_SEND_DATA(mp, DM_EVENT_READ, vp, *ppos, count,
- FILP_DELAY_FLAG(infilp), &locktype);
+ error = XFS_SEND_DATA(mp, DM_EVENT_READ, ip, *ppos, count,
+ FILP_DELAY_FLAG(infilp), &iolock);
if (error) {
xfs_iunlock(ip, XFS_IOLOCK_SHARED);
return -error;
int flags,
int ioflags)
{
- bhv_vnode_t *vp = XFS_ITOV(ip);
xfs_mount_t *mp = ip->i_mount;
ssize_t ret;
struct inode *inode = outfilp->f_mapping->host;
xfs_ilock(ip, XFS_IOLOCK_EXCL);
if (DM_EVENT_ENABLED(ip, DM_EVENT_WRITE) && !(ioflags & IO_INVIS)) {
- bhv_vrwlock_t locktype = VRWLOCK_WRITE;
+ int iolock = XFS_IOLOCK_EXCL;
int error;
- error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, vp, *ppos, count,
- FILP_DELAY_FLAG(outfilp), &locktype);
+ error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, ip, *ppos, count,
+ FILP_DELAY_FLAG(outfilp), &iolock);
if (error) {
xfs_iunlock(ip, XFS_IOLOCK_EXCL);
return -error;
int error = 0;
xfs_bmbt_irec_t imap;
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE) != 0);
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
zero_offset = XFS_B_FSB_OFFSET(mp, isize);
if (zero_offset == 0) {
* out sync. We need to drop the ilock while we do this so we
* don't deadlock when the buffer cache calls back to us.
*/
- xfs_iunlock(ip, XFS_ILOCK_EXCL| XFS_EXTSIZE_RD);
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
zero_len = mp->m_sb.sb_blocksize - zero_offset;
if (isize + zero_len > offset)
zero_len = offset - isize;
error = xfs_iozero(ip, isize, zero_len);
- xfs_ilock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
ASSERT(error >= 0);
return error;
}
int error = 0;
xfs_bmbt_irec_t imap;
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
- ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
ASSERT(offset > isize);
/*
*/
error = xfs_zero_last_block(ip, offset, isize);
if (error) {
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
- ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
return error;
}
error = xfs_bmapi(NULL, ip, start_zero_fsb, zero_count_fsb,
0, NULL, 0, &imap, &nimaps, NULL, NULL);
if (error) {
- ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE));
- ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE));
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_IOLOCK_EXCL));
return error;
}
ASSERT(nimaps > 0);
* Drop the inode lock while we're doing the I/O.
* We'll still have the iolock to protect us.
*/
- xfs_iunlock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
zero_off = XFS_FSB_TO_B(mp, start_zero_fsb);
zero_len = XFS_FSB_TO_B(mp, imap.br_blockcount);
start_zero_fsb = imap.br_startoff + imap.br_blockcount;
ASSERT(start_zero_fsb <= (end_zero_fsb + 1));
- xfs_ilock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
}
return 0;
out_lock:
- xfs_ilock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
ASSERT(error >= 0);
return error;
}
struct file *file = iocb->ki_filp;
struct address_space *mapping = file->f_mapping;
struct inode *inode = mapping->host;
- bhv_vnode_t *vp = XFS_ITOV(xip);
unsigned long segs = nsegs;
xfs_mount_t *mp;
ssize_t ret = 0, error = 0;
xfs_fsize_t isize, new_size;
int iolock;
int eventsent = 0;
- bhv_vrwlock_t locktype;
size_t ocount = 0, count;
loff_t pos;
int need_i_mutex;
relock:
if (ioflags & IO_ISDIRECT) {
iolock = XFS_IOLOCK_SHARED;
- locktype = VRWLOCK_WRITE_DIRECT;
need_i_mutex = 0;
} else {
iolock = XFS_IOLOCK_EXCL;
- locktype = VRWLOCK_WRITE;
need_i_mutex = 1;
mutex_lock(&inode->i_mutex);
}
dmflags |= DM_FLAGS_IMUX;
xfs_iunlock(xip, XFS_ILOCK_EXCL);
- error = XFS_SEND_DATA(xip->i_mount, DM_EVENT_WRITE, vp,
- pos, count,
- dmflags, &locktype);
+ error = XFS_SEND_DATA(xip->i_mount, DM_EVENT_WRITE, xip,
+ pos, count, dmflags, &iolock);
if (error) {
goto out_unlock_internal;
}
return XFS_ERROR(-EINVAL);
}
- if (!need_i_mutex && (VN_CACHED(vp) || pos > xip->i_size)) {
+ if (!need_i_mutex && (mapping->nrpages || pos > xip->i_size)) {
xfs_iunlock(xip, XFS_ILOCK_EXCL|iolock);
iolock = XFS_IOLOCK_EXCL;
- locktype = VRWLOCK_WRITE;
need_i_mutex = 1;
mutex_lock(&inode->i_mutex);
xfs_ilock(xip, XFS_ILOCK_EXCL|iolock);
if (new_size > xip->i_size)
xip->i_new_size = new_size;
- if (likely(!(ioflags & IO_INVIS))) {
+ /*
+ * We're not supposed to change timestamps in readonly-mounted
+ * filesystems. Throw it away if anyone asks us.
+ */
+ 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);
+ mnt_drop_write(file->f_path.mnt);
}
/*
current->backing_dev_info = mapping->backing_dev_info;
if ((ioflags & IO_ISDIRECT)) {
- if (VN_CACHED(vp)) {
+ if (mapping->nrpages) {
WARN_ON(need_i_mutex == 0);
xfs_inval_cached_trace(xip, pos, -1,
(pos & PAGE_CACHE_MASK), -1);
mutex_unlock(&inode->i_mutex);
iolock = XFS_IOLOCK_SHARED;
- locktype = VRWLOCK_WRITE_DIRECT;
need_i_mutex = 0;
}
if (ret == -ENOSPC &&
DM_EVENT_ENABLED(xip, DM_EVENT_NOSPACE) && !(ioflags & IO_INVIS)) {
- xfs_rwunlock(xip, locktype);
+ xfs_iunlock(xip, iolock);
if (need_i_mutex)
mutex_unlock(&inode->i_mutex);
- error = XFS_SEND_NAMESP(xip->i_mount, DM_EVENT_NOSPACE, vp,
- DM_RIGHT_NULL, vp, DM_RIGHT_NULL, NULL, NULL,
+ error = XFS_SEND_NAMESP(xip->i_mount, DM_EVENT_NOSPACE, xip,
+ DM_RIGHT_NULL, xip, DM_RIGHT_NULL, NULL, NULL,
0, 0, 0); /* Delay flag intentionally unused */
if (need_i_mutex)
mutex_lock(&inode->i_mutex);
- xfs_rwlock(xip, locktype);
+ xfs_ilock(xip, iolock);
if (error)
goto out_unlock_internal;
pos = xip->i_size;
/* Handle various SYNC-type writes */
if ((file->f_flags & O_SYNC) || IS_SYNC(inode)) {
int error2;
- xfs_rwunlock(xip, locktype);
+
+ xfs_iunlock(xip, iolock);
if (need_i_mutex)
mutex_unlock(&inode->i_mutex);
error2 = sync_page_range(inode, mapping, pos, ret);
error = error2;
if (need_i_mutex)
mutex_lock(&inode->i_mutex);
- xfs_rwlock(xip, locktype);
+ xfs_ilock(xip, iolock);
error2 = xfs_write_sync_logforce(mp, xip);
if (!error)
error = error2;
xip->i_d.di_size = xip->i_size;
xfs_iunlock(xip, XFS_ILOCK_EXCL);
}
- xfs_rwunlock(xip, locktype);
+ xfs_iunlock(xip, iolock);
out_unlock_mutex:
if (need_i_mutex)
mutex_unlock(&inode->i_mutex);
}
/*
- * Wrapper around bdstrat so that we can stop data
- * from going to disk in case we are shutting down the filesystem.
- * Typically user data goes thru this path; one of the exceptions
- * is the superblock.
+ * Wrapper around bdstrat so that we can stop data from going to disk in case
+ * we are shutting down the filesystem. Typically user data goes thru this
+ * path; one of the exceptions is the superblock.
*/
-int
+void
xfsbdstrat(
struct xfs_mount *mp,
struct xfs_buf *bp)
{
ASSERT(mp);
if (!XFS_FORCED_SHUTDOWN(mp)) {
- /* Grio redirection would go here
- * if (XFS_BUF_IS_GRIO(bp)) {
- */
-
xfs_buf_iorequest(bp);
- return 0;
+ return;
}
xfs_buftrace("XFSBDSTRAT IOERROR", bp);
- return (xfs_bioerror_relse(bp));
+ xfs_bioerror_relse(bp);
}
/*
projects / linux-2.6 / blobdiff