linux-kernel - [PATCH] get_mm_hiwater_xxx: trivial, s/define/inline/

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Date:	Sun, 18 Jan 2009 04:39:53 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Hugh Dickins <hugh@...itas.com>, linux-kernel@...r.kernel.org
Subject: [PATCH] get_mm_hiwater_xxx: trivial, s/define/inline/

(sorry! forgot to save this patch)

Andrew pointed out get_mm_hiwater_xxx() evaluate "mm" argument thrice/twice,
make them inline.

Signed-off-by: Oleg Nesterov <oleg@...hat.com>

--- K-28/include/linux/sched.h~CLEANUP	2008-12-03 18:17:18.000000000 +0100
+++ K-28/include/linux/sched.h	2008-12-20 16:01:31.000000000 +0100
@@ -388,8 +388,15 @@ extern void arch_unmap_area_topdown(stru
 		(mm)->hiwater_vm = (mm)->total_vm;	\
 } while (0)
 
-#define get_mm_hiwater_rss(mm)	max((mm)->hiwater_rss, get_mm_rss(mm))
-#define get_mm_hiwater_vm(mm)	max((mm)->hiwater_vm, (mm)->total_vm)
+static inline unsigned long get_mm_hiwater_rss(struct mm_struct *mm)
+{
+	return max(mm->hiwater_rss, get_mm_rss(mm));
+}
+
+static inline unsigned long get_mm_hiwater_vm(struct mm_struct *mm)
+{
+	return max(mm->hiwater_vm, mm->total_vm);
+}
 
 extern void set_dumpable(struct mm_struct *mm, int value);
 extern int get_dumpable(struct mm_struct *mm);

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