[PATCH 6/7] zram/xvmalloc: Close 32byte hole on 64-bit CPUs

Robert Jennings rcj at linux.vnet.ibm.com
Wed Jan 26 17:27:06 UTC 2011


By swapping the total_pages statistic with the lock we close a
hole in the structure for 64-bit CPUs.

Signed-off-by: Robert Jennings <rcj at linux.vnet.ibm.com>
---
 drivers/staging/zram/xvmalloc_int.h |    7 ++-----
 1 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/zram/xvmalloc_int.h b/drivers/staging/zram/xvmalloc_int.h
index 68db384..e51eea4 100644
--- a/drivers/staging/zram/xvmalloc_int.h
+++ b/drivers/staging/zram/xvmalloc_int.h
@@ -93,12 +93,9 @@ struct block_header {
 struct xv_pool {
 	ulong flbitmap;
 	ulong slbitmap[MAX_FLI];
-	spinlock_t lock;
-
+	u64 total_pages;	/* stats */
 	struct freelist_entry freelist[NUM_FREE_LISTS];
-
-	/* stats */
-	u64 total_pages;
+	spinlock_t lock;
 };
 
 #endif
-- 
1.6.0.2




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