From 43be594a6b0ce34ab5fa3b13e08727a99fb95b91 Mon Sep 17 00:00:00 2001 From: Zhang Yanfei Date: Fri, 22 Feb 2013 16:35:46 -0800 Subject: [PATCH] fs/buffer.c: change type of max_buffer_heads to unsigned long max_buffer_heads is calculated from nr_free_buffer_pages(), so change its type to unsigned long in case of overflow. Signed-off-by: Zhang Yanfei Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/buffer.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/buffer.c b/fs/buffer.c index 2ea9cd44aeae..62169c192c21 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -3227,7 +3227,7 @@ static struct kmem_cache *bh_cachep __read_mostly; * Once the number of bh's in the machine exceeds this level, we start * stripping them in writeback. */ -static int max_buffer_heads; +static unsigned long max_buffer_heads; int buffer_heads_over_limit; @@ -3343,7 +3343,7 @@ EXPORT_SYMBOL(bh_submit_read); void __init buffer_init(void) { - int nrpages; + unsigned long nrpages; bh_cachep = kmem_cache_create("buffer_head", sizeof(struct buffer_head), 0, -- 2.20.1