4.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Benjamin Coddington <bcodd...@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 <bcodd...@redhat.com>
Signed-off-by: Anna Schumaker <anna.schuma...@netapp.com>
Signed-off-by: Greg Kroah-Hartman <gre...@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;
