linux-kernel - [PATCH 1/4] lib/rhashtable: simplify bucket_table

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Date:   Thu, 21 Jun 2018 14:28:22 -0700
From:   Davidlohr Bueso <dave@...olabs.net>
To:     akpm@...ux-foundation.org, torvalds@...ux-foundation.org
Cc:     tgraf@...g.ch, herbert@...dor.apana.org.au,
        manfred@...orfullife.com, mhocko@...nel.org,
        guillaume.knispel@...ersonicimagine.com, linux-api@...r.kernel.org,
        linux-kernel@...r.kernel.org, dave@...olabs.net,
        Davidlohr Bueso <dbueso@...e.de>
Subject: [PATCH 1/4] lib/rhashtable: simplify bucket_table_alloc()

As of ce91f6ee5 (mm: kvmalloc does not fallback to vmalloc for incompatible gfp flag),
we can simplify the caller and trust kvzalloc() to just do the right thing.

Signed-off-by: Davidlohr Bueso <dbueso@...e.de>
---
 lib/rhashtable.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index 9427b5766134..26c9cd8a985a 100644
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -175,10 +175,7 @@ static struct bucket_table *bucket_table_alloc(struct rhashtable *ht,
 	int i;
 
 	size = sizeof(*tbl) + nbuckets * sizeof(tbl->buckets[0]);
-	if (gfp != GFP_KERNEL)
-		tbl = kzalloc(size, gfp | __GFP_NOWARN | __GFP_NORETRY);
-	else
-		tbl = kvzalloc(size, gfp);
+	tbl = kvzalloc(size, gfp);
 
 	size = nbuckets;
 
-- 
2.16.4