diff options
author | NeilBrown <neilb@suse.de> | 2012-05-22 03:55:13 (GMT) |
---|---|---|
committer | NeilBrown <neilb@suse.de> | 2012-05-22 03:55:13 (GMT) |
commit | edbb79df6731bb1e99c15f5a519a864d488f4808 (patch) | |
tree | 3f2cff223d63a8ec5be507fb991cea083c2b8c7a /drivers/md/bitmap.c | |
parent | bc9891a8853842a19c33dda0ba02fbacf7da067f (diff) | |
download | linux-edbb79df6731bb1e99c15f5a519a864d488f4808.tar.xz |
md/bitmap: remove bitmap_mask_state
This function isn't really needed. It sets or clears a flag in both
bitmap->flags and sb->state.
However both times it is called, bitmap_update_sb is called soon
afterwards which copies bitmap->flags to sb->state.
So just make changes to bitmap->flags, and open-code those rather than
hiding in a function.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/bitmap.c')
-rw-r--r-- | drivers/md/bitmap.c | 37 |
1 files changed, 3 insertions, 34 deletions
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index 1a93ed1..2d25f3a 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -640,38 +640,6 @@ out_no_sb: return err; } -enum bitmap_mask_op { - MASK_SET, - MASK_UNSET -}; - -/* record the state of the bitmap in the superblock. Return the old value */ -static int bitmap_mask_state(struct bitmap *bitmap, enum bitmap_state bits, - enum bitmap_mask_op op) -{ - bitmap_super_t *sb; - int old; - - if (!bitmap->storage.sb_page) /* can't set the state */ - return 0; - sb = kmap_atomic(bitmap->storage.sb_page); - old = le32_to_cpu(sb->state) & bits; - switch (op) { - case MASK_SET: - sb->state |= cpu_to_le32(bits); - bitmap->flags |= bits; - break; - case MASK_UNSET: - sb->state &= cpu_to_le32(~bits); - bitmap->flags &= ~bits; - break; - default: - BUG(); - } - kunmap_atomic(sb); - return old; -} - /* * general bitmap file operations */ @@ -828,7 +796,8 @@ static void bitmap_file_kick(struct bitmap *bitmap) { char *path, *ptr = NULL; - if (bitmap_mask_state(bitmap, BITMAP_STALE, MASK_SET) == 0) { + if (!(bitmap->flags & BITMAP_STALE)) { + bitmap->flags |= BITMAP_STALE; bitmap_update_sb(bitmap); if (bitmap->storage.file) { @@ -1830,7 +1799,7 @@ int bitmap_load(struct mddev *mddev) if (err) goto out; - bitmap_mask_state(bitmap, BITMAP_STALE, MASK_UNSET); + bitmap->flags &= ~BITMAP_STALE; /* Kick recovery in case any bits were set */ set_bit(MD_RECOVERY_NEEDED, &bitmap->mddev->recovery); |