diff options
| author | Sahitya Tummala <stummala@codeaurora.org> | 2020-11-23 08:28:32 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2020-12-03 09:00:21 +0300 |
| commit | 8769918bf06c9cfb01a1a6ee0e547c9916881496 (patch) | |
| tree | 5ac4d1494b84a00c6736f28b0fad369d10432ff8 /fs/f2fs/super.c | |
| parent | 7ad08a58bf67594057362e45cbddd3e27e53e557 (diff) | |
| download | linux-8769918bf06c9cfb01a1a6ee0e547c9916881496.tar.xz | |
f2fs: change to use rwsem for cp_mutex
Use rwsem to ensure serialization of the callers and to avoid
starvation of high priority tasks, when the system is under
heavy IO workload.
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/super.c')
| -rw-r--r-- | fs/f2fs/super.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 1c282c3da263..82baaa89c893 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -3551,7 +3551,7 @@ try_onemore: sbi->valid_super_block = valid_super_block; init_rwsem(&sbi->gc_lock); mutex_init(&sbi->writepages); - mutex_init(&sbi->cp_mutex); + init_rwsem(&sbi->cp_global_sem); init_rwsem(&sbi->node_write); init_rwsem(&sbi->node_change); |