tree 1c49a07da252832fc6842c88a2359e8cd43af636
parent a72d7f834e1afa08421938d7eb06bd8e56b0e58c
author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> 1201582707 -0500
committer Theodore Ts'o <tytso@mit.edu> 1201582707 -0500

ext4: Introduce ext4_lblk_t

This patch adds a new data type ext4_lblk_t to represent
the logical file blocks.

This is the preparatory patch to support large files in ext4
The follow up patch with convert the ext4_inode i_blocks to
represent the number of blocks in file system block size. This
changes makes it possible to have a block number 2**32 -1 which
will result in overflow if the block number is represented by
signed long. This patch convert all the block number to type
ext4_lblk_t which is typedef to __u32

Also remove dead code ext4_ext_walk_space

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Eric Sandeen <sandeen@redhat.com>