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authorMichal Hocko <mhocko@suse.com>2017-07-10 15:51:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-10 16:32:35 -0700
commit12e8fd6fd380261fd200d2e8f7a519ade73ea05b (patch)
tree1a0c4dd2d97d121288e2120022e23a1d1f5de5e1 /lib
parentc46ecce431ebe6b1a9551d1f530eb432dae5c39b (diff)
lib/rhashtable.c: use kvzalloc() in bucket_table_alloc() when possible
bucket_table_alloc() can be currently called with GFP_KERNEL or GFP_ATOMIC. For the former we basically have an open coded kvzalloc() while the later only uses kzalloc(). Let's simplify the code a bit by the dropping the open coded path and replace it with kvzalloc(). Link: http://lkml.kernel.org/r/20170531155145.17111-3-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Cc: Thomas Graf <tgraf@suug.ch> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/rhashtable.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index d9e7274a04cd..42466c167257 100644
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -211,11 +211,10 @@ static struct bucket_table *bucket_table_alloc(struct rhashtable *ht,
int i;
size = sizeof(*tbl) + nbuckets * sizeof(tbl->buckets[0]);
- if (size <= (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER) ||
- gfp != GFP_KERNEL)
+ if (gfp != GFP_KERNEL)
tbl = kzalloc(size, gfp | __GFP_NOWARN | __GFP_NORETRY);
- if (tbl == NULL && gfp == GFP_KERNEL)
- tbl = vzalloc(size);
+ else
+ tbl = kvzalloc(size, gfp);
size = nbuckets;