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| author | NeilBrown <neilb@suse.de> | 2012-05-22 13:55:15 +1000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-05-22 13:55:15 +1000 |
| commit | b405fe91e50c60c80e72d798025aea4917096421 (patch) | |
| tree | bc0b8dc67e7bc7897c6299d4bc80e42a7842e7fe /drivers/md/bitmap.h | |
| parent | 84e923453e19d6427c6aa884d9561f01e1425d09 (diff) | |
| download | linux-rt-b405fe91e50c60c80e72d798025aea4917096421.tar.gz | |
md/bitmap: use set_bit, test_bit, etc for operation on bitmap->flags.
We currently use '&' and '|' which isn't the norm in the kernel
and doesn't allow easy atomicity.
So change to bit numbers and {set,clear,test}_bit.
This allows us to remove a spinlock/unlock (which was dubious anyway)
and some other simplifications.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/bitmap.h')
| -rw-r--r-- | drivers/md/bitmap.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/md/bitmap.h b/drivers/md/bitmap.h index 26689260e179..e2d999a62ba9 100644 --- a/drivers/md/bitmap.h +++ b/drivers/md/bitmap.h @@ -111,9 +111,9 @@ typedef __u16 bitmap_counter_t; /* use these for bitmap->flags and bitmap->sb->state bit-fields */ enum bitmap_state { - BITMAP_STALE = 0x002, /* the bitmap file is out of date or had -EIO */ - BITMAP_WRITE_ERROR = 0x004, /* A write error has occurred */ - BITMAP_HOSTENDIAN = 0x8000, + BITMAP_STALE = 1, /* the bitmap file is out of date or had -EIO */ + BITMAP_WRITE_ERROR = 2, /* A write error has occurred */ + BITMAP_HOSTENDIAN =15, }; /* the superblock at the front of the bitmap file -- little endian */ |