linux-kernel - [PATCH 10/12] vmalloc: annotate lock context change on s

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Date:	Thu, 30 Sep 2010 12:50:19 +0900
From:	Namhyung Kim <namhyung@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH 10/12] vmalloc: annotate lock context change on s_start/stop()

s_start() and s_stop() grab/release vmlist_lock but were missing proper
annotations. Add them.

Signed-off-by: Namhyung Kim <namhyung@...il.com>
---
 mm/vmalloc.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 7ce8ca5..0be8470 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2339,6 +2339,7 @@ void pcpu_free_vm_areas(struct vm_struct **vms, int nr_vms)
 
 #ifdef CONFIG_PROC_FS
 static void *s_start(struct seq_file *m, loff_t *pos)
+	__acquires(&vmlist_lock)
 {
 	loff_t n = *pos;
 	struct vm_struct *v;
@@ -2365,6 +2366,7 @@ static void *s_next(struct seq_file *m, void *p, loff_t *pos)
 }
 
 static void s_stop(struct seq_file *m, void *p)
+	__releases(&vmlist_lock)
 {
 	read_unlock(&vmlist_lock);
 }
-- 
1.7.2.2

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