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md: Fix userspace free_pages() macro

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While using etags to find free_pages(), I stumbled across this debug
definition of free_pages() that is to be used while debugging some raid
code in userspace. The __get_free_pages() allocates the correct size,
but the free_pages() does not match. free_pages(), like
__get_free_pages(), takes an order and not a size.

Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
Steven Rostedt 2011-12-23 10:17:51 +11:00 committed by NeilBrown
parent 908f4fbd26
commit 38059ec2bd
1 changed files with 1 additions and 1 deletions
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include/linux/raid/pq.h
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@ -132,7 +132,7 @@ void raid6_dual_recov(int disks, size_t bytes, int faila, int failb,
PROT_READ|PROT_WRITE, \
MAP_PRIVATE|MAP_ANONYMOUS,\
0, 0))
# define free_pages(x, y) munmap((void *)(x), (y)*PAGE_SIZE)
# define free_pages(x, y) munmap((void *)(x), PAGE_SIZE << (y))
static inline void cpu_relax(void)
{