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Diffstat (limited to 'fs/xfs/linux-2.6/xfs_file.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_file.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 65e78c13d4ae..5f60363b9343 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -184,19 +184,24 @@ xfs_file_release(
return -xfs_release(XFS_I(inode));
}
+/*
+ * We ignore the datasync flag here because a datasync is effectively
+ * identical to an fsync. That is, datasync implies that we need to write
+ * only the metadata needed to be able to access the data that is written
+ * if we crash after the call completes. Hence if we are writing beyond
+ * EOF we have to log the inode size change as well, which makes it a
+ * full fsync. If we don't write beyond EOF, the inode core will be
+ * clean in memory and so we don't need to log the inode, just like
+ * fsync.
+ */
STATIC int
xfs_file_fsync(
struct file *filp,
struct dentry *dentry,
int datasync)
{
- int flags = FSYNC_WAIT;
-
- if (datasync)
- flags |= FSYNC_DATA;
xfs_iflags_clear(XFS_I(dentry->d_inode), XFS_ITRUNCATED);
- return -xfs_fsync(XFS_I(dentry->d_inode), flags,
- (xfs_off_t)0, (xfs_off_t)-1);
+ return -xfs_fsync(XFS_I(dentry->d_inode));
}
/*