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Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

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* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: stop calling filemap_fdatawait inside ->fsync
  fix readahead calculations in xfs_dir2_leaf_getdents()
  xfs: make sure xfs_sync_fsdata covers the log
  xfs: mark inodes dirty before issuing I/O
  xfs: cleanup ->sync_fs
  xfs: fix xfs_quiesce_data
  xfs: implement ->dirty_inode to fix timestamp handling
This commit is contained in:
Linus Torvalds 2009-10-09 13:29:42 -07:00
commit a372bf8b6a
13 changed files with 146 additions and 102 deletions
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59
fs/xfs/linux-2.6/xfs_super.c
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@ -976,6 +976,28 @@ xfs_fs_inode_init_once(
mrlock_init(&ip->i_iolock, MRLOCK_BARRIER, "xfsio", ip->i_ino);
}
/*
* Dirty the XFS inode when mark_inode_dirty_sync() is called so that
* we catch unlogged VFS level updates to the inode. Care must be taken
* here - the transaction code calls mark_inode_dirty_sync() to mark the
* VFS inode dirty in a transaction and clears the i_update_core field;
* it must clear the field after calling mark_inode_dirty_sync() to
* correctly indicate that the dirty state has been propagated into the
* inode log item.
*
* We need the barrier() to maintain correct ordering between unlogged
* updates and the transaction commit code that clears the i_update_core
* field. This requires all updates to be completed before marking the
* inode dirty.
*/
STATIC void
xfs_fs_dirty_inode(
struct inode *inode)
{
barrier();
XFS_I(inode)->i_update_core = 1;
}
/*
* Attempt to flush the inode, this will actually fail
* if the inode is pinned, but we dirty the inode again
@ -1126,7 +1148,7 @@ xfs_fs_put_super(
}
STATIC int
xfs_fs_sync_super(
xfs_fs_sync_fs(
struct super_block *sb,
int wait)
{
@ -1134,23 +1156,23 @@ xfs_fs_sync_super(
int error;
/*
* Treat a sync operation like a freeze. This is to work
* around a race in sync_inodes() which works in two phases
* - an asynchronous flush, which can write out an inode
* without waiting for file size updates to complete, and a
* synchronous flush, which wont do anything because the
* async flush removed the inode's dirty flag. Also
* sync_inodes() will not see any files that just have
* outstanding transactions to be flushed because we don't
* dirty the Linux inode until after the transaction I/O
* completes.
* Not much we can do for the first async pass. Writing out the
* superblock would be counter-productive as we are going to redirty
* when writing out other data and metadata (and writing out a single
* block is quite fast anyway).
*
* Try to asynchronously kick off quota syncing at least.
*/
if (wait || unlikely(sb->s_frozen == SB_FREEZE_WRITE))
error = xfs_quiesce_data(mp);
else
error = xfs_sync_fsdata(mp, 0);
if (!wait) {
xfs_qm_sync(mp, SYNC_TRYLOCK);
return 0;
}
if (unlikely(laptop_mode)) {
error = xfs_quiesce_data(mp);
if (error)
return -error;
if (laptop_mode) {
int prev_sync_seq = mp->m_sync_seq;
/*
@ -1169,7 +1191,7 @@ xfs_fs_sync_super(
mp->m_sync_seq != prev_sync_seq);
}
return -error;
return 0;
}
STATIC int
@ -1539,10 +1561,11 @@ xfs_fs_get_sb(
static const struct super_operations xfs_super_operations = {
.alloc_inode = xfs_fs_alloc_inode,
.destroy_inode = xfs_fs_destroy_inode,
.dirty_inode = xfs_fs_dirty_inode,
.write_inode = xfs_fs_write_inode,
.clear_inode = xfs_fs_clear_inode,
.put_super = xfs_fs_put_super,
.sync_fs = xfs_fs_sync_super,
.sync_fs = xfs_fs_sync_fs,
.freeze_fs = xfs_fs_freeze,
.statfs = xfs_fs_statfs,
.remount_fs = xfs_fs_remount,