| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.12 151/196] NFS: Fix initialization of nfs_page_array->npages | Date | Tue, 25 Jul 2017 12:22:30 -0700 |
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4.12-stable review patch. If anyone has any objections, please let me know.
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From: Benjamin Coddington <bcodding@redhat.com>
commit 2eb3aea7d9c43325a12df312adfc7fb25bbd636b upstream.
Commit 8ef9b0b9e1c0 open-coded nfs_pgarray_set(), and left out the initialization of the nfs_page_array's npages. This mistake didn't show up until testing with block layouts, and there shows that all pNFS reads return -EIO.
Fixes: 8ef9b0b9e1c0 ("NFS: move nfs_pgarray_set() to open code") Signed-off-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/nfs/pagelist.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -779,6 +779,7 @@ int nfs_generic_pgio(struct nfs_pageio_d gfp_t gfp_flags = GFP_KERNEL; pagecount = nfs_page_array_len(mirror->pg_base, mirror->pg_count); + pg_array->npages = pagecount; if (pagecount <= ARRAY_SIZE(pg_array->page_array)) pg_array->pagevec = pg_array->page_array;
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