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-rw-r--r--drivers/md/md-bitmap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c
index cd9a12ca281d..b3f13105659d 100644
--- a/drivers/md/md-bitmap.c
+++ b/drivers/md/md-bitmap.c
@@ -1368,7 +1368,7 @@ __acquires(bitmap->lock)
if (bitmap->bp[page].hijacked ||
bitmap->bp[page].map == NULL)
csize = ((sector_t)1) << (bitmap->chunkshift +
- PAGE_COUNTER_SHIFT - 1);
+ PAGE_COUNTER_SHIFT);
else
csize = ((sector_t)1) << bitmap->chunkshift;
*blocks = csize - (offset & (csize - 1));