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Date: Fri, 22 Mar 2019 12:15:59 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Trond Myklebust <trond.myklebust@...merspace.com> Subject: [PATCH 4.4 221/230] NFS: Dont recoalesce on error in nfs_pageio_complete_mirror() 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Trond Myklebust <trond.myklebust@...merspace.com> commit 8127d82705998568b52ac724e28e00941538083d 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: a7d42ddb3099 ("nfs: add mirroring support to pgio layer") Signed-off-by: Trond Myklebust <trond.myklebust@...merspace.com> Cc: stable@...r.kernel.org # v4.0+ Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- fs/nfs/pagelist.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -1202,7 +1202,7 @@ static void nfs_pageio_complete_mirror(s 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;
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