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From: Zhen Lei <thunder.leizhen@huawei.com>
To: Christoph Lameter <cl@linux.com>,
	Pekka Enberg <penberg@kernel.org>,
	David Rientjes <rientjes@google.com>,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Vlastimil Babka <vbabka@suse.cz>,
	Roman Gushchin <roman.gushchin@linux.dev>,
	Hyeonggon Yoo <42.hyeyoo@gmail.com>, <linux-mm@kvack.org>,
	<linux-kernel@vger.kernel.org>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Subject: [PATCH] mm/slab_common: reduce an if statement in create_cache()
Date: Tue, 6 Jun 2023 14:55:43 +0800	[thread overview]
Message-ID: <20230606065543.1324-1-thunder.leizhen@huawei.com> (raw)

Move the 'out:' statement block out of the successful path to avoid
redundant check on 'err'. The value of 'err' is always zero on success
and negative on failure.

No functional changes, no performance improvements, just a little more
readability.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
---
 mm/slab_common.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/mm/slab_common.c b/mm/slab_common.c
index 607249785c077e9..f6fe35105774944 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -236,14 +236,12 @@ static struct kmem_cache *create_cache(const char *name,
 
 	s->refcount = 1;
 	list_add(&s->list, &slab_caches);
-out:
-	if (err)
-		return ERR_PTR(err);
 	return s;
 
 out_free_cache:
 	kmem_cache_free(kmem_cache, s);
-	goto out;
+out:
+	return ERR_PTR(err);
 }
 
 /**
-- 
2.25.1


             reply	other threads:[~2023-06-06  6:57 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-06  6:55 Zhen Lei [this message]
2023-06-06  7:48 ` Hyeonggon Yoo
2023-06-06  8:48   ` Vlastimil Babka

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