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xfs: merge xfs_inode_flush into xfs_fs_write_inode 

Splitting the task for a VFS-induced inode flush into two functions doesn't
make any sense, so merge the two functions dealing with it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Felix Blyakher <felixb@sgi.com>
Reviewed-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Christoph Hellwig 2009-02-04 09:36:19 +01:00 committed by Christoph Hellwig
parent e1486dea0b
commit d4bb6d0698
4 changed files with 37 additions and 57 deletions
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43
fs/xfs/linux-2.6/xfs_super.c
View File

@ -990,26 +990,57 @@ xfs_fs_write_inode(
int sync)
{
struct xfs_inode *ip = XFS_I(inode);
struct xfs_mount *mp = ip->i_mount;
int error = 0;
int flags = 0;
xfs_itrace_entry(ip);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
if (sync) {
error = xfs_wait_on_pages(ip, 0, -1);
if (error)
goto out_error;
flags |= FLUSH_SYNC;
goto out;
}
error = xfs_inode_flush(ip, flags);
out_error:
/*
* Bypass inodes which have already been cleaned by
* the inode flush clustering code inside xfs_iflush
*/
if (xfs_inode_clean(ip))
goto out;
/*
* We make this non-blocking if the inode is contended, return
* EAGAIN to indicate to the caller that they did not succeed.
* This prevents the flush path from blocking on inodes inside
* another operation right now, they get caught later by xfs_sync.
*/
if (sync) {
xfs_ilock(ip, XFS_ILOCK_SHARED);
xfs_iflock(ip);
error = xfs_iflush(ip, XFS_IFLUSH_SYNC);
} else {
error = EAGAIN;
if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED))
goto out;
if (xfs_ipincount(ip) || !xfs_iflock_nowait(ip))
goto out_unlock;
error = xfs_iflush(ip, XFS_IFLUSH_ASYNC_NOBLOCK);
}
out_unlock:
xfs_iunlock(ip, XFS_ILOCK_SHARED);
out:
/*
* if we failed to write out the inode then mark
* it dirty again so we'll try again later.
*/
if (error)
xfs_mark_inode_dirty_sync(ip);
return -error;
}

5
fs/xfs/linux-2.6/xfs_vnode.h
View File

@ -40,11 +40,6 @@ struct attrlist_cursor_kern;
#define IO_ISDIRECT 0x00004 /* bypass page cache */
#define IO_INVIS 0x00020 /* don't update inode timestamps */
/*
* Flags for xfs_inode_flush
*/
#define FLUSH_SYNC 1 /* wait for flush to complete */
/*
* Flush/Invalidate options for vop_toss/flush/flushinval_pages.
*/

45
fs/xfs/xfs_vnodeops.c
View File

@ -2588,51 +2588,6 @@ std_return:
goto std_return;
}
int
xfs_inode_flush(
xfs_inode_t *ip,
int flags)
{
xfs_mount_t *mp = ip->i_mount;
int error = 0;
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
/*
* Bypass inodes which have already been cleaned by
* the inode flush clustering code inside xfs_iflush
*/
if (xfs_inode_clean(ip))
return 0;
/*
* We make this non-blocking if the inode is contended,
* return EAGAIN to indicate to the caller that they
* did not succeed. This prevents the flush path from
* blocking on inodes inside another operation right
* now, they get caught later by xfs_sync.
*/
if (flags & FLUSH_SYNC) {
xfs_ilock(ip, XFS_ILOCK_SHARED);
xfs_iflock(ip);
} else if (xfs_ilock_nowait(ip, XFS_ILOCK_SHARED)) {
if (xfs_ipincount(ip) || !xfs_iflock_nowait(ip)) {
xfs_iunlock(ip, XFS_ILOCK_SHARED);
return EAGAIN;
}
} else {
return EAGAIN;
}
error = xfs_iflush(ip, (flags & FLUSH_SYNC) ? XFS_IFLUSH_SYNC
: XFS_IFLUSH_ASYNC_NOBLOCK);
xfs_iunlock(ip, XFS_ILOCK_SHARED);
return error;
}
int
xfs_set_dmattrs(
xfs_inode_t *ip,

1
fs/xfs/xfs_vnodeops.h
View File

@ -38,7 +38,6 @@ int xfs_readdir(struct xfs_inode *dp, void *dirent, size_t bufsize,
int xfs_symlink(struct xfs_inode *dp, struct xfs_name *link_name,
const char *target_path, mode_t mode, struct xfs_inode **ipp,
cred_t *credp);
int xfs_inode_flush(struct xfs_inode *ip, int flags);
int xfs_set_dmattrs(struct xfs_inode *ip, u_int evmask, u_int16_t state);
int xfs_reclaim(struct xfs_inode *ip);
int xfs_change_file_space(struct xfs_inode *ip, int cmd,