f2fs: use atomic type for node count in extent tree

1. rename field in struct extent_tree from count to node_cnt for
   readability.
2. alter to use atomic type for node_cnt.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2016-01-08 20:22:52 +08:00 • committed by Jaegeuk Kim
commit 68e3538510
2 changed files with 10 additions and 9 deletions