diff options
author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-08-17 08:57:56 +0200 |
---|---|---|
committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-08-17 09:01:08 +0200 |
commit | a22ddff8bedfe33eeb1330bbb7ef1fbe007a42c4 (patch) | |
tree | 61a2eb7fa62f5af10c2b913ca429e6b068b0eb2d /fs/affs/bitmap.c | |
parent | 20d5a540e55a29daeef12706f9ee73baf5641c16 (diff) | |
parent | d9875690d9b89a866022ff49e3fcea892345ad92 (diff) |
Merge tag 'v3.6-rc2' into drm-intel-next
Backmerge Linux 3.6-rc2 to resolve a few funny conflicts before we put
even more madness on top:
- drivers/gpu/drm/i915/i915_irq.c: Just a spurious WARN removed in
-fixes, that has been changed in a variable-rename in -next, too.
- drivers/gpu/drm/i915/intel_ringbuffer.c: -next remove scratch_addr
(since all their users have been extracted in another fucntion),
-fixes added another user for a hw workaroudn.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'fs/affs/bitmap.c')
-rw-r--r-- | fs/affs/bitmap.c | 32 |
1 files changed, 4 insertions, 28 deletions
diff --git a/fs/affs/bitmap.c b/fs/affs/bitmap.c index 3e262711ae06..a32246b8359e 100644 --- a/fs/affs/bitmap.c +++ b/fs/affs/bitmap.c @@ -10,30 +10,6 @@ #include <linux/slab.h> #include "affs.h" -/* This is, of course, shamelessly stolen from fs/minix */ - -static const int nibblemap[] = { 0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4 }; - -static u32 -affs_count_free_bits(u32 blocksize, const void *data) -{ - const u32 *map; - u32 free; - u32 tmp; - - map = data; - free = 0; - for (blocksize /= 4; blocksize > 0; blocksize--) { - tmp = *map++; - while (tmp) { - free += nibblemap[tmp & 0xf]; - tmp >>= 4; - } - } - - return free; -} - u32 affs_count_free_blocks(struct super_block *sb) { @@ -103,7 +79,7 @@ affs_free_block(struct super_block *sb, u32 block) *(__be32 *)bh->b_data = cpu_to_be32(tmp - mask); mark_buffer_dirty(bh); - sb->s_dirt = 1; + affs_mark_sb_dirty(sb); bm->bm_free++; mutex_unlock(&sbi->s_bmlock); @@ -248,7 +224,7 @@ find_bit: *(__be32 *)bh->b_data = cpu_to_be32(tmp + mask); mark_buffer_dirty(bh); - sb->s_dirt = 1; + affs_mark_sb_dirty(sb); mutex_unlock(&sbi->s_bmlock); @@ -317,7 +293,7 @@ int affs_init_bitmap(struct super_block *sb, int *flags) goto out; } pr_debug("AFFS: read bitmap block %d: %d\n", blk, bm->bm_key); - bm->bm_free = affs_count_free_bits(sb->s_blocksize - 4, bh->b_data + 4); + bm->bm_free = memweight(bh->b_data + 4, sb->s_blocksize - 4); /* Don't try read the extension if this is the last block, * but we also need the right bm pointer below @@ -367,7 +343,7 @@ int affs_init_bitmap(struct super_block *sb, int *flags) /* recalculate bitmap count for last block */ bm--; - bm->bm_free = affs_count_free_bits(sb->s_blocksize - 4, bh->b_data + 4); + bm->bm_free = memweight(bh->b_data + 4, sb->s_blocksize - 4); out: affs_brelse(bh); |