Messages in this thread Patch in this message | | | Subject | md: Fix userspace free_pages() macro | From | Steven Rostedt <> | Date | Wed, 14 Dec 2011 08:34:38 -0500 |
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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.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
diff --git a/include/linux/raid/pq.h b/include/linux/raid/pq.h index 2b59cc8..53272e9 100644 --- a/include/linux/raid/pq.h +++ b/include/linux/raid/pq.h @@ -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) {
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