linux-kernel - [PATCH 12/22] Inline buffered

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Date:	Wed, 22 Apr 2009 14:53:17 +0100
From:	Mel Gorman <mel@....ul.ie>
To:	Mel Gorman <mel@....ul.ie>,
	Linux Memory Management List <linux-mm@...ck.org>
Cc:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Nick Piggin <npiggin@...e.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Lin Ming <ming.m.lin@...el.com>,
	Zhang Yanmin <yanmin_zhang@...ux.intel.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH 12/22] Inline buffered_rmqueue()

buffered_rmqueue() is in the fast path so inline it. Because it only has one
call site, this function can then be inlined without causing text bloat. On
an x86-based config, it made no difference as the savings were padded out
by NOP instructions. Milage varies but text will either decrease in size
or remain static.

Signed-off-by: Mel Gorman <mel@....ul.ie>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
---
 mm/page_alloc.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 8bfced9..cb57382 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1076,7 +1076,8 @@ void split_page(struct page *page, unsigned int order)
  * we cheat by calling it from here, in the order > 0 path.  Saves a branch
  * or two.
  */
-static struct page *buffered_rmqueue(struct zone *preferred_zone,
+static inline
+struct page *buffered_rmqueue(struct zone *preferred_zone,
 			struct zone *zone, int order, gfp_t gfp_flags,
 			int migratetype)
 {
-- 
1.5.6.5

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