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| author | Theodore Ts'o <tytso@mit.edu> | 2012-06-30 23:14:57 (GMT) |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2012-06-30 23:14:57 (GMT) |
| commit | f6fb99cadcd44660c68e13f6eab28333653621e6 (patch) | |
| tree | 4075bd09e5ec75bbeaa9d0ca498e50cfb0c45dfe | |
| parent | f4e95b3316c4daa43224753bb98f41456fef86c7 (diff) | |
| download | linux-f6fb99cadcd44660c68e13f6eab28333653621e6.tar.xz | |
ext4: pass a char * to ext4_count_free() instead of a buffer_head ptr
Make it possible for ext4_count_free to operate on buffers and not
just data in buffer_heads.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
| -rw-r--r-- | fs/ext4/balloc.c | 3 | ||||
| -rw-r--r-- | fs/ext4/bitmap.c | 8 | ||||
| -rw-r--r-- | fs/ext4/ext4.h | 2 | ||||
| -rw-r--r-- | fs/ext4/ialloc.c | 3 |
4 files changed, 8 insertions, 8 deletions
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c index cee7812..d23b31c 100644 --- a/fs/ext4/balloc.c +++ b/fs/ext4/balloc.c @@ -609,7 +609,8 @@ ext4_fsblk_t ext4_count_free_clusters(struct super_block *sb) if (bitmap_bh == NULL) continue; - x = ext4_count_free(bitmap_bh, sb->s_blocksize); + x = ext4_count_free(bitmap_bh->b_data, + EXT4_BLOCKS_PER_GROUP(sb) / 8); printk(KERN_DEBUG "group %u: stored = %d, counted = %u\n", i, ext4_free_group_clusters(sb, gdp), x); bitmap_count += x; diff --git a/fs/ext4/bitmap.c b/fs/ext4/bitmap.c index b319721..7e86a6d 100644 --- a/fs/ext4/bitmap.c +++ b/fs/ext4/bitmap.c @@ -15,15 +15,13 @@ static const int nibblemap[] = {4, 3, 3, 2, 3, 2, 2, 1, 3, 2, 2, 1, 2, 1, 1, 0}; -unsigned int ext4_count_free(struct buffer_head *map, unsigned int numchars) +unsigned int ext4_count_free(char *bitmap, unsigned int numchars) { unsigned int i, sum = 0; - if (!map) - return 0; for (i = 0; i < numchars; i++) - sum += nibblemap[map->b_data[i] & 0xf] + - nibblemap[(map->b_data[i] >> 4) & 0xf]; + sum += nibblemap[bitmap[i] & 0xf] + + nibblemap[(bitmap[i] >> 4) & 0xf]; return sum; } diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index cfc4e01..293fa1c 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1852,7 +1852,7 @@ struct mmpd_data { # define NORET_AND noreturn, /* bitmap.c */ -extern unsigned int ext4_count_free(struct buffer_head *, unsigned); +extern unsigned int ext4_count_free(char *bitmap, unsigned numchars); void ext4_inode_bitmap_csum_set(struct super_block *sb, ext4_group_t group, struct ext4_group_desc *gdp, struct buffer_head *bh, int sz); diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index d48e8b1..6866bc2 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -1054,7 +1054,8 @@ unsigned long ext4_count_free_inodes(struct super_block *sb) if (!bitmap_bh) continue; - x = ext4_count_free(bitmap_bh, EXT4_INODES_PER_GROUP(sb) / 8); + x = ext4_count_free(bitmap_bh->b_data, + EXT4_INODES_PER_GROUP(sb) / 8); printk(KERN_DEBUG "group %lu: stored = %d, counted = %lu\n", (unsigned long) i, ext4_free_inodes_count(sb, gdp), x); bitmap_count += x; |