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| author | Marcin Slusarz <marcin.slusarz@gmail.com> | 2008-02-08 04:20:34 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-08 09:22:35 -0800 |
| commit | 883cb9d1842a37c6eed77f2c64792d35048c1e8d (patch) | |
| tree | e0c95015c8721868dab0d060385aec18164718a6 /fs/udf/super.c | |
| parent | 66e1da3f47d5aaa278d116e72d2f8e8f204cdca3 (diff) | |
| download | linux-883cb9d1842a37c6eed77f2c64792d35048c1e8d.tar.bz2 | |
udf: move calculating of nr_groups into helper function
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Ben Fennema <bfennema@falcon.csc.calpoly.edu>
Acked-by: Jan Kara <jack@suse.cz>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/udf/super.c')
| -rw-r--r-- | fs/udf/super.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/fs/udf/super.c b/fs/udf/super.c index 86aa2238bc7b..c19ee38e85b3 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -937,18 +937,22 @@ static void udf_load_fileset(struct super_block *sb, struct buffer_head *bh, root->logicalBlockNum, root->partitionReferenceNum); } +int udf_compute_nr_groups(struct super_block *sb, u32 partition) +{ + struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition]; + return (map->s_partition_len + + (sizeof(struct spaceBitmapDesc) << 3) + + (sb->s_blocksize * 8) - 1) / + (sb->s_blocksize * 8); +} + static struct udf_bitmap *udf_sb_alloc_bitmap(struct super_block *sb, u32 index) { - struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[index]; struct udf_bitmap *bitmap; int nr_groups; int size; - /* TODO: move calculating of nr_groups into helper function */ - nr_groups = (map->s_partition_len + - (sizeof(struct spaceBitmapDesc) << 3) + - (sb->s_blocksize * 8) - 1) / - (sb->s_blocksize * 8); + nr_groups = udf_compute_nr_groups(sb, index); size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups); |