From a2c1aad3b5fccbb948878b75f9b8f13248666fd6 Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <dave@stgolabs.net>
Date: Thu, 5 Nov 2015 18:48:52 -0800
Subject: mm/vmacache: inline vmacache_valid_mm()

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.

(akpm: this is cosmetic - the compiler already inlines vmacache_valid_mm())

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/vmacache.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/vmacache.c b/mm/vmacache.c
index b6e3662fe339..fd09dc9c6812 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);
 }
-- 
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