From: Davidlohr Bueso <dave@stgolabs.net>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Davidlohr Bueso <dave@stgolabs.net>,
Davidlohr Bueso <dbueso@suse.de>
Subject: [PATCH -next] mm/vmacache: inline vmacache_valid_mm()
Date: Wed, 7 Oct 2015 21:17:59 -0700 [thread overview]
Message-ID: <1444277879-22039-1-git-send-email-dave@stgolabs.net> (raw)
This function incurs in very hot paths and merely
does a few loads for validity check. Lets inline it,
such that we can save the function call overhead.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
---
mm/vmacache.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/vmacache.c b/mm/vmacache.c
index b6e3662..fd09dc9 100644
--- a/mm/vmacache.c
+++ b/mm/vmacache.c
@@ -52,7 +52,7 @@ void vmacache_flush_all(struct mm_struct *mm)
* Also handle the case where a kernel thread has adopted this mm via use_mm().
* That kernel thread's vmacache is not applicable to this mm.
*/
-static bool vmacache_valid_mm(struct mm_struct *mm)
+static inline bool vmacache_valid_mm(struct mm_struct *mm)
{
return current->mm == mm && !(current->flags & PF_KTHREAD);
}
--
2.1.4
next reply other threads:[~2015-10-08 4:18 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-08 4:17 Davidlohr Bueso [this message]
2015-10-08 6:21 ` [PATCH -next] mm/vmacache: inline vmacache_valid_mm() Sergey Senozhatsky
2015-10-08 13:23 ` Davidlohr Bueso
2015-10-08 13:43 ` Sergey Senozhatsky
2015-10-08 16:55 ` Davidlohr Bueso
2015-10-08 17:32 ` Davidlohr Bueso
2015-10-08 22:15 ` Andrew Morton
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