diff options
Diffstat (limited to 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 962a0444dc84..282a51b07c57 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -262,6 +262,9 @@ struct ext4_io_submit { (s)->s_first_ino) #endif #define EXT4_BLOCK_ALIGN(size, blkbits) ALIGN((size), (1 << (blkbits))) +#define EXT4_MAX_BLOCKS(size, offset, blkbits) \ + ((EXT4_BLOCK_ALIGN(size + offset, blkbits) >> blkbits) - (offset >> \ + blkbits)) /* Translate a block number to a cluster number */ #define EXT4_B2C(sbi, blk) ((blk) >> (sbi)->s_cluster_bits) |