From: NeilBrown <neilb@xxxxxxx>
Keep DIV_ROUND_UP changes from e384e58549a2e9a83071ad80280c1a9053cfd84c
md/bitmap: prepare for storing write-intent-bitmap via dm-dirty-log.
Signed-off-by: NeilBrown <neilb@xxxxxxx>
Signed-off-by: Jonathan Brassow <jbrassow@xxxxxxxxxx>
Signed-off-by: Mike Snitzer <snitzer@xxxxxxxxxx>
---
drivers/md/bitmap.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 2eb51cd..f3f5edc 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -925,11 +925,11 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start)
printk(KERN_INFO "%s: bitmap file is out of date, doing full "
"recovery\n", bmname(bitmap));
- bytes = (chunks + 7) / 8;
+ bytes = DIV_ROUND_UP(bitmap->chunks, 8);
if (!bitmap->mddev->bitmap_info.external)
bytes += sizeof(bitmap_super_t);
- num_pages = (bytes + PAGE_SIZE - 1) / PAGE_SIZE;
+ num_pages = DIV_ROUND_UP(bytes, PAGE_SIZE);
if (file && i_size_read(file->f_mapping->host) < bytes) {
printk(KERN_INFO "%s: bitmap file too short %lu < %lu\n",
--
1.7.2.3
--
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