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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-04 07:56:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-04 07:56:22 -0700 |
| commit | 08542241cf710d1b7c28c63b2213be4b7b1b3362 (patch) | |
| tree | acafbf265de573f020cdaeb3539d0bdb3c71dec6 /drivers | |
| parent | Merge branch 'fix-unmapped-word-at-a-time' (diff) | |
| parent | md/bitmap: fix calculation of 'chunks' - missing shift. (diff) | |
| download | linux-dev-08542241cf710d1b7c28c63b2213be4b7b1b3362.tar.xz linux-dev-08542241cf710d1b7c28c63b2213be4b7b1b3362.zip | |
Merge tag 'md-3.4-fixes' of git://neil.brown.name/md
Pull one small fix for md/bitmaps from NeilBrown:
"This fixes a regression that was introduced in the merge window."
* tag 'md-3.4-fixes' of git://neil.brown.name/md:
md/bitmap: fix calculation of 'chunks' - missing shift.
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/bitmap.c | 3 | ||||
| -rw-r--r-- | drivers/md/bitmap.h | 3 |
2 files changed, 1 insertions, 5 deletions
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index 97e73e555d11..17e2b472e16d 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -1727,8 +1727,7 @@ int bitmap_create(struct mddev *mddev) bitmap->chunkshift = (ffz(~mddev->bitmap_info.chunksize) - BITMAP_BLOCK_SHIFT); - /* now that chunksize and chunkshift are set, we can use these macros */ - chunks = (blocks + bitmap->chunkshift - 1) >> + chunks = (blocks + (1 << bitmap->chunkshift) - 1) >> bitmap->chunkshift; pages = (chunks + PAGE_COUNTER_RATIO - 1) / PAGE_COUNTER_RATIO; diff --git a/drivers/md/bitmap.h b/drivers/md/bitmap.h index 55ca5aec84e4..b44b0aba2d47 100644 --- a/drivers/md/bitmap.h +++ b/drivers/md/bitmap.h @@ -101,9 +101,6 @@ typedef __u16 bitmap_counter_t; #define BITMAP_BLOCK_SHIFT 9 -/* how many blocks per chunk? (this is variable) */ -#define CHUNK_BLOCK_RATIO(bitmap) ((bitmap)->mddev->bitmap_info.chunksize >> BITMAP_BLOCK_SHIFT) - #endif /* |