slab: remove GFP_THISNODE clearing from alloc_slabmgmt()

Commit 6cb062296f73e74768cca2f3eaf90deac54de02d ("Categorize GFP flags")
left one call-site in alloc_slabmgmt() to clear GFP_THISNODE instead of
GFP_CONSTRAINT_MASK. Unfortunately, that ends up clearing __GFP_NOWARN
and __GFP_NORETRY as well which is not what we want. As the only caller
of alloc_slabmgmt() already clears GFP_CONSTRAINT_MASK before passing
local_flags to it, we can just remove the clearing of GFP_THISNODE.

This patch should fix spurious page allocation failure warnings on the
mempool_alloc() path. See the following URL for the original discussion
of the bug:

  http://lkml.org/lkml/2008/10/27/100

Acked-by: Christoph Lameter <cl@linux-foundation.org>
Reported-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>

1 files changed, 1 insertions, 1 deletions

diff --git a/mm/slab.c b/mm/slab.c
index 09187517f9dc..d4b87690b275 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2609,7 +2609,7 @@ static struct slab *alloc_slabmgmt(struct kmem_cache *cachep, void *objp,
         if (OFF_SLAB(cachep)) {
                 /* Slab management obj is off-slab. */
                 slabp = kmem_cache_alloc_node(cachep->slabp_cache,
-                                              local_flags & ~GFP_THISNODE, nodeid);
+                                              local_flags, nodeid);
                 if (!slabp)
                         return NULL;
         } else {