Commit a1ad2897 authored Dec 10, 2014 by Li Haifeng Committed by Linus Torvalds Dec 10, 2014

mm/frontswap.c: 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>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 26086de3

mm/frontswap.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -182,7 +182,7 @@ void __frontswap_init(unsigned type, unsigned long *map)
	if (frontswap_ops)		if (frontswap_ops)
	frontswap_ops->init(type);		frontswap_ops->init(type);
	else {		else {
	BUG_ON(type > MAX_SWAPFILES);		BUG_ON(type >= MAX_SWAPFILES);
	set_bit(type, need_init);		set_bit(type, need_init);
	}		}
	}		}