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>
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 @@
* 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);
}