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NFS: Fix an I/O request leakage in nfs_do_recoalesce

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commit 4d91969ed4 upstream.

Whether we need to exit early, or just reprocess the list, we
must not lost track of the request which failed to get recoalesced.

Fixes: 03d5eb65b5 ("NFS: Fix a memory leak in nfs_do_recoalesce")
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 14:59:52 -05:00 committed by Greg Kroah-Hartman
parent be74fddc97
commit 63b0ee126f
1 changed files with 0 additions and 1 deletions
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1
fs/nfs/pagelist.c
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@ -1093,7 +1093,6 @@ static int nfs_do_recoalesce(struct nfs_pageio_descriptor *desc)
struct nfs_page *req;
req = list_first_entry(&head, struct nfs_page, wb_list);
nfs_list_remove_request(req);
if (__nfs_pageio_add_request(desc, req))
continue;
if (desc->pg_error < 0) {