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| author | Christoph Hellwig <hch@lst.de> | 2009-06-08 15:35:05 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@brick.lst.de> | 2009-06-08 15:35:05 +0200 |
| commit | 845b6d0cbbc2304e8a54ed4038272c55f85b2269 (patch) | |
| tree | 1c8e9270f7e78a0525f1873cef4d017618e06632 | |
| parent | 5a34d5cd096310133f9208db294021208a96660d (diff) | |
| download | linux-845b6d0cbbc2304e8a54ed4038272c55f85b2269.tar.gz linux-845b6d0cbbc2304e8a54ed4038272c55f85b2269.tar.bz2 linux-845b6d0cbbc2304e8a54ed4038272c55f85b2269.zip | |
xfs: split inode flushing from xfs_sync_inodes_ag
In many cases we only want to sync inode metadata. Split out the inode
flushing into a separate helper to prepare factoring the inode sync code.
Based on a patch from Dave Chinner, but redone to keep the current behaviour
exactly and leave changes to the flushing logic to another patch.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eric Sandeen <sandeen@sandeen.net>
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_sync.c | 50 |
1 files changed, 33 insertions, 17 deletions
diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c index 7adc62dd14bb..1712caa12017 100644 --- a/fs/xfs/linux-2.6/xfs_sync.c +++ b/fs/xfs/linux-2.6/xfs_sync.c @@ -77,6 +77,35 @@ xfs_sync_inode_data( return error; } +STATIC int +xfs_sync_inode_attr( + struct xfs_inode *ip, + int flags) +{ + int error = 0; + + xfs_ilock(ip, XFS_ILOCK_SHARED); + if (xfs_inode_clean(ip)) + goto out_unlock; + if (!xfs_iflock_nowait(ip)) { + if (!(flags & SYNC_WAIT)) + goto out_unlock; + xfs_iflock(ip); + } + + if (xfs_inode_clean(ip)) { + xfs_ifunlock(ip); + goto out_unlock; + } + + error = xfs_iflush(ip, (flags & SYNC_WAIT) ? + XFS_IFLUSH_SYNC : XFS_IFLUSH_DELWRI); + + out_unlock: + xfs_iunlock(ip, XFS_ILOCK_SHARED); + return error; +} + /* * Sync all the inodes in the given AG according to the * direction given by the flags. @@ -96,7 +125,6 @@ xfs_sync_inodes_ag( do { struct inode *inode; xfs_inode_t *ip = NULL; - int lock_flags = XFS_ILOCK_SHARED; /* * use a gang lookup to find the next inode in the tree @@ -155,22 +183,10 @@ xfs_sync_inodes_ag( if (flags & SYNC_DELWRI) error = xfs_sync_inode_data(ip, flags); - xfs_ilock(ip, XFS_ILOCK_SHARED); - if ((flags & SYNC_ATTR) && !xfs_inode_clean(ip)) { - if (flags & SYNC_WAIT) { - xfs_iflock(ip); - if (!xfs_inode_clean(ip)) - error = xfs_iflush(ip, XFS_IFLUSH_SYNC); - else - xfs_ifunlock(ip); - } else if (xfs_iflock_nowait(ip)) { - if (!xfs_inode_clean(ip)) - error = xfs_iflush(ip, XFS_IFLUSH_DELWRI); - else - xfs_ifunlock(ip); - } - } - xfs_iput(ip, lock_flags); + if (flags & SYNC_ATTR) + error = xfs_sync_inode_attr(ip, flags); + + IRELE(ip); if (error) last_error = error; |