tree de22a81c028f33d9fc2354bfdc218191b96240cf
parent 7d6cd92fe2de3c286b8e95f43223f09db9302635
author Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> 1282302638 +0900
committer Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> 1287793473 +0900

nilfs2: keep zero value in i_cno except for gc-inodes

On-memory inode structures of nilfs have a member "i_cno" which stores
a checkpoint number related to the inode.  For gc-inodes, this field
indicates version of data each gc-inode caches for GC.  Log writer
temporarily uses "i_cno" to transfer the latest checkpoint number.

This stops the latter use and lets only gc-inodes use it.

The purpose of this patch is to allow the successive change use
"i_cno" for inode lookup.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>