Commit 4722607d authored Oct 13, 2009 by Chris Mason

Btrfs: only write one super copy during fsync



During a tree-log commit for fsync, we've been writing at least
two copies of the super block and forcing them to disk.

The other filesystems write only one, and this change brings us on
par with them.  A full transaction commit will write all the super
copies, so we still have redundant info written on a regular
basis.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

parent ac6889cb

fs/btrfs/tree-log.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2092,7 +2092,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
		* the running transaction open, so a full commit can't hop
		* in and cause problems either.
		*/
		write_ctree_super(trans, root->fs_info->tree_root, 2);
		write_ctree_super(trans, root->fs_info->tree_root, 1);
		ret = 0;

		out_wake_log_root:

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