tree 4df7edba6286ccfc9f78aabc4ea506179913d9ad
parent ae9e37cd114385764864518057ff854b3f335440
author Theodore Ts'o <tytso@mit.edu> 1307197247 -0400
committer Theodore Ts'o <tytso@mit.edu> 1307223790 -0400

libext2fs: change fs->clustersize to fs->cluster_ratio_bits

The log2 of the ratio of cluster size to block size is far more useful
than just storing the cluster size.  So make this change, and then
define basic utility macros: EXT2FS_CLUSTER_RATIO(),
EXT2FS_CLUSTER_MASK(), EXT2FS_B2C(), EXT2FS_C2B(), and
EXT2FS_NUM_B2C().

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>