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authorJan Kara <jack@suse.cz>2009-10-16 19:26:15 +0200
committerJan Kara <jack@suse.cz>2009-11-11 15:22:49 +0100
commitfe8bc91c4c30122b357d197117705cfd4fabaf28 (patch)
tree33e2895847d812204209444db4093af9a2c3623d /fs/ext3/super.c
parentea0174a7137c8ca9f130ca681f3a99c872da6778 (diff)
downloadop-kernel-dev-fe8bc91c4c30122b357d197117705cfd4fabaf28.zip
op-kernel-dev-fe8bc91c4c30122b357d197117705cfd4fabaf28.tar.gz
ext3: Wait for proper transaction commit on fsync
We cannot rely on buffer dirty bits during fsync because pdflush can come before fsync is called and clear dirty bits without forcing a transaction commit. What we do is that we track which transaction has last changed the inode and which transaction last changed allocation and force it to disk on fsync. Signed-off-by: Jan Kara <jack@suse.cz> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Diffstat (limited to 'fs/ext3/super.c')
-rw-r--r--fs/ext3/super.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 7a520a8..427496c 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -466,6 +466,8 @@ static struct inode *ext3_alloc_inode(struct super_block *sb)
return NULL;
ei->i_block_alloc_info = NULL;
ei->vfs_inode.i_version = 1;
+ atomic_set(&ei->i_datasync_tid, 0);
+ atomic_set(&ei->i_sync_tid, 0);
return &ei->vfs_inode;
}
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