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

From: Davidlohr Bueso
Date: Tue Aug 06 2024 - 12:57:06 EST


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