diff options
Diffstat (limited to 'fs/ocfs2/ocfs2.h')
| -rw-r--r-- | fs/ocfs2/ocfs2.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h index 460c6c37e683..690ddc60189b 100644 --- a/fs/ocfs2/ocfs2.h +++ b/fs/ocfs2/ocfs2.h @@ -717,6 +717,16 @@ static inline u64 ocfs2_clusters_to_blocks(struct super_block *sb, return (u64)clusters << c_to_b_bits; } +static inline u32 ocfs2_clusters_for_blocks(struct super_block *sb, + u64 blocks) +{ + int b_to_c_bits = OCFS2_SB(sb)->s_clustersize_bits - + sb->s_blocksize_bits; + + blocks += (1 << b_to_c_bits) - 1; + return (u32)(blocks >> b_to_c_bits); +} + static inline u32 ocfs2_blocks_to_clusters(struct super_block *sb, u64 blocks) { |