From: Christoph Hellwig <hch@lst.de>
Date: Thu, 5 Feb 2015 00:13:21 +0000 (+1100)
Subject: xfs: growfs should use synchronous transactions
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f8079b850c9e130423829c919f3c0802e677099d;p=linux.git

xfs: growfs should use synchronous transactions

Growfs updates the secondary superblocks using synchronous unlogged
buffer writes after committing the updates to the primary superblock.

Mark the transaction to the primary superblock as synchronous so that
we guarantee it is committed to disk before we update the secondary
superblocks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
---

diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index f7114527cd2f8..fba6532efba44 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -488,6 +488,7 @@ xfs_growfs_data_private(
 		xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, nfree);
 	if (dpct)
 		xfs_trans_mod_sb(tp, XFS_TRANS_SB_IMAXPCT, dpct);
+	xfs_trans_set_sync(tp);
 	error = xfs_trans_commit(tp, 0);
 	if (error)
 		return error;