Messages in this thread Patch in this message | | | Date | Fri, 31 Oct 2014 18:14:19 +0800 | Subject | [PATCH] Frontswap: fix the condition in BUG_ON | From | Li Haifeng <> |
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From 012a564c7210346b99d12e3d2485542bb090586e Mon Sep 17 00:00:00 2001 From: Haifeng Li <omycle@gmail.com> Date: Fri, 31 Oct 2014 17:40:44 +0800 Subject: [PATCH] Frontswap: fix the condition in BUG_ON
The largest index of swap device is MAX_SWAPFILES-1. So the type should be less than MAX_SWAPFILES.
Signed-off-by: Haifeng Li <omycle@gmail.com> --- mm/frontswap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/frontswap.c b/mm/frontswap.c index c30eec5..1b80c05 100644 --- a/mm/frontswap.c +++ b/mm/frontswap.c @@ -182,7 +182,7 @@ void __frontswap_init(unsigned type, unsigned long *map) if (frontswap_ops) frontswap_ops->init(type); else { - BUG_ON(type > MAX_SWAPFILES); + BUG_ON(type >= MAX_SWAPFILES); set_bit(type, need_init); } } -- 1.9.1
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