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mm/frontswap.c: fix the condition in BUG_ON

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The largest index of swap device is MAX_SWAPFILES-1.  So the type should
be less than MAX_SWAPFILES.

Signed-off-by: Haifeng Li <[email protected]>
Acked-by: Konrad Rzeszutek Wilk <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Li Haifeng 2014-12-10 15:44:47 -08:00 • committed by Linus Torvalds
commit a1ad28973d
1 changed files with 1 additions and 1 deletions
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2
mm/frontswap.c
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@ -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);
}
}