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| author |   NeilBrown <neilb@suse.de> | 2012-05-22 13:55:25 +1000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-05-22 13:55:25 +1000 |
| commit | 15702d7fb6e7a6baf5a04286a227b0ad2fe4a03f (patch) | |
| tree | e3f99eab7c841bb51ee48a8806e140f751d8e95d /drivers/md/bitmap.c | |
| parent | md/bitmap: create a 'struct bitmap_counts' substructure of 'struct bitmap' (diff) | |
| download | linux-dev-15702d7fb6e7a6baf5a04286a227b0ad2fe4a03f.tar.xz linux-dev-15702d7fb6e7a6baf5a04286a227b0ad2fe4a03f.zip | |
md/bitmap: use DIV_ROUND_UP instead of open-code
Also take the opportunity to simplify CHUNK_BLOCK_RATIO.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/bitmap.c')
| -rw-r--r-- | drivers/md/bitmap.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index c100a47bc157..bc552bbad83e 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -1694,9 +1694,8 @@ int bitmap_create(struct mddev *mddev) bitmap->counts.chunkshift = (ffz(~mddev->bitmap_info.chunksize) - BITMAP_BLOCK_SHIFT); - chunks = (blocks + (1 << bitmap->counts.chunkshift) - 1) >> - bitmap->counts.chunkshift; - pages = (chunks + PAGE_COUNTER_RATIO - 1) / PAGE_COUNTER_RATIO; + chunks = DIV_ROUND_UP_SECTOR_T(blocks, 1 << bitmap->counts.chunkshift); + pages = DIV_ROUND_UP(chunks, PAGE_COUNTER_RATIO); BUG_ON(!pages); |