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NFS: Fix initialization of nfs_page_array->npages 

Commit 8ef9b0b9e1 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: 8ef9b0b9e1 ("NFS: move nfs_pgarray_set() to open code")
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Cc: stable@vger.kernel.org # 4.12
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Benjamin Coddington 2017-06-09 11:03:23 -04:00 committed by Anna Schumaker
parent 1a4edf0f46
commit 2eb3aea7d9
1 changed files with 1 additions and 0 deletions
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1
fs/nfs/pagelist.c
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@ -779,6 +779,7 @@ int nfs_generic_pgio(struct nfs_pageio_descriptor *desc,
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;