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NFS: Don't recoalesce on error in nfs_pageio_complete_mirror() 

commit 8127d82705 upstream.

If the I/O completion failed with a fatal error, then we should just
exit nfs_pageio_complete_mirror() rather than try to recoalesce.

Fixes: a7d42ddb30 ("nfs: add mirroring support to pgio layer")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: stable@vger.kernel.org # v4.0+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Trond Myklebust 2019-02-15 16:08:25 -05:00 committed by Greg Kroah-Hartman
parent 18ae814610
commit 7ed608268e
1 changed files with 1 additions and 1 deletions
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2
fs/nfs/pagelist.c
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@ -1200,7 +1200,7 @@ static void nfs_pageio_complete_mirror(struct nfs_pageio_descriptor *desc,
desc->pg_mirror_idx = mirror_idx;
for (;;) {
nfs_pageio_doio(desc);
if (!mirror->pg_recoalesce)
if (desc->pg_error < 0 || !mirror->pg_recoalesce)
break;
if (!nfs_do_recoalesce(desc))
break;