From: Wei Yang <richard.weiyang@gmail.com>
To: cl@linux.com, penberg@kernel.org, rientjes@google.com
Cc: akpm@linux-foundation.org, linux-mm@kvack.org,
Wei Yang <richard.weiyang@gmail.com>
Subject: [PATCH 2/3] mm, slub: unify access to s->cpu_slab by replacing raw_cpu_ptr() with this_cpu_ptr()
Date: Thu, 25 Oct 2018 17:44:36 +0800 [thread overview]
Message-ID: <20181025094437.18951-2-richard.weiyang@gmail.com> (raw)
In-Reply-To: <20181025094437.18951-1-richard.weiyang@gmail.com>
In current code, we use two forms to access s->cpu_slab
* raw_cpu_ptr()
* this_cpu_ptr()
This patch unify the access by replacing raw_cpu_ptr() with
this_cpu_ptr().
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
---
mm/slub.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/slub.c b/mm/slub.c
index 11e49d95e0ac..715372a786e3 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2643,7 +2643,7 @@ static __always_inline void *slab_alloc_node(struct kmem_cache *s,
*/
do {
tid = this_cpu_read(s->cpu_slab->tid);
- c = raw_cpu_ptr(s->cpu_slab);
+ c = this_cpu_ptr(s->cpu_slab);
} while (IS_ENABLED(CONFIG_PREEMPT) &&
unlikely(tid != READ_ONCE(c->tid)));
@@ -2916,7 +2916,7 @@ static __always_inline void do_slab_free(struct kmem_cache *s,
*/
do {
tid = this_cpu_read(s->cpu_slab->tid);
- c = raw_cpu_ptr(s->cpu_slab);
+ c = this_cpu_ptr(s->cpu_slab);
} while (IS_ENABLED(CONFIG_PREEMPT) &&
unlikely(tid != READ_ONCE(c->tid)));
--
2.15.1
next prev parent reply other threads:[~2018-10-25 9:45 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-25 9:44 [PATCH 1/3] mm, slub: not retrieve cpu_slub again in new_slab_objects() Wei Yang
2018-10-25 9:44 ` Wei Yang [this message]
2018-10-25 13:53 ` [PATCH 2/3] mm, slub: unify access to s->cpu_slab by replacing raw_cpu_ptr() with this_cpu_ptr() Christopher Lameter
2018-10-25 14:49 ` Wei Yang
2018-10-25 9:44 ` [PATCH 3/3] mm, slub: make the comment of put_cpu_partial() complete Wei Yang
2018-10-25 13:41 ` Christopher Lameter
2018-12-30 8:25 ` Wei Yang
2018-10-25 13:46 ` [PATCH 1/3] mm, slub: not retrieve cpu_slub again in new_slab_objects() Christopher Lameter
2018-10-25 14:54 ` Wei Yang
2018-10-26 4:33 ` Wei Yang
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