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authorTrond Myklebust <trond.myklebust@primarydata.com>2015-07-27 10:23:19 -0400
committerTrond Myklebust <trond.myklebust@primarydata.com>2015-07-27 10:33:08 -0400
commit03d5eb65b53889fe98a5ecddfe205c16e3093190 (patch)
tree9fbd7052c8f5663170d119ac94a0d2a6a00dd392 /fs/nfs/pagelist.c
parent115c48d7a5351abeadd0c8a3dc87eca3d66a6475 (diff)
NFS: Fix a memory leak in nfs_do_recoalesce
If the function exits early, then we must put those requests that were not processed back onto the &mirror->pg_list so they can be cleaned up by nfs_pgio_error(). Fixes: a7d42ddb30997 ("nfs: add mirroring support to pgio layer") Cc: stable@vger.kernel.org # v4.0+ Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/pagelist.c')
-rw-r--r--fs/nfs/pagelist.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 1da68d3b1eda..8ea5920fb777 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -1109,8 +1109,11 @@ static int nfs_do_recoalesce(struct nfs_pageio_descriptor *desc)
nfs_list_remove_request(req);
if (__nfs_pageio_add_request(desc, req))
continue;
- if (desc->pg_error < 0)
+ if (desc->pg_error < 0) {
+ list_splice_tail(&head, &mirror->pg_list);
+ mirror->pg_recoalesce = 1;
return 0;
+ }
break;
}
} while (mirror->pg_recoalesce);