Revert "f2fs: use percpu_rw_semaphore"
authorJaegeuk Kim <jaegeuk@kernel.org>
Thu, 4 Aug 2016 18:38:25 +0000 (11:38 -0700)
committerJaegeuk Kim <jaegeuk@kernel.org>
Fri, 19 Aug 2016 02:15:08 +0000 (11:15 +0900)
commitb873b798af6386f3c7ca1636d4989e9b8f9d1794
treedc5e1c001d445112341f205154823bc775ada463
parent3408fef7448ce7d3c926978ee1a511e7707bffba
Revert "f2fs: use percpu_rw_semaphore"

LKP reported -36.3% regression of fsmark.files_per_sec due to this patch.
I've confirmed that fxmark [1] has also slight regression for DWAL.

[1] https://github.com/sslab-gatech/fxmark

This reverts commit ec795418c41850056feb956534edf059dc1155d4.
fs/f2fs/f2fs.h
fs/f2fs/node.c
fs/f2fs/super.c