[PATCH] lib/rhashtable: cleanup fallback check in bucket_table_alloc()

[Davidlohr Bueso]

Upon allocation failure, the current check with the nofail bits
is unnecessary, and further stands in the way of discouraging
direct use of __GFP_NOFAIL. Remove this and replace with the
proper way of determining if doing a non-blocking allocation
for the nested table case.

Suggested-by: Michal Hocko <mhocko@xxxxxxxx>
Signed-off-by: Davidlohr Bueso <dave@xxxxxxxxxxxx>
---
 lib/rhashtable.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index dbbed19f8fff..6c902639728b 100644
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -189,7 +189,7 @@ static struct bucket_table *bucket_table_alloc(struct rhashtable *ht,
 
 	size = nbuckets;
 
-	if (tbl == NULL && (gfp & ~__GFP_NOFAIL) != GFP_KERNEL) {
+	if (tbl == NULL && !gfpflags_allow_blocking(gfp)) {
 		tbl = nested_bucket_table_alloc(ht, nbuckets, gfp);
 		nbuckets = 0;
 	}
-- 
2.45.2