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| author | Sahitya Tummala <stummala@codeaurora.org> | 2020-11-23 10:58:32 +0530 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2020-12-02 22:00:21 -0800 |
| commit | 8769918bf06c9cfb01a1a6ee0e547c9916881496 (patch) | |
| tree | 5ac4d1494b84a00c6736f28b0fad369d10432ff8 /fs/f2fs/f2fs.h | |
| parent | 7ad08a58bf67594057362e45cbddd3e27e53e557 (diff) | |
| download | linux-8769918bf06c9cfb01a1a6ee0e547c9916881496.tar.bz2 | |
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/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index c626fb03d5bc..273f068e8899 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1369,7 +1369,7 @@ struct f2fs_sb_info { int cur_cp_pack; /* remain current cp pack */ spinlock_t cp_lock; /* for flag in ckpt */ struct inode *meta_inode; /* cache meta blocks */ - struct mutex cp_mutex; /* checkpoint procedure lock */ + struct rw_semaphore cp_global_sem; /* checkpoint procedure lock */ struct rw_semaphore cp_rwsem; /* blocking FS operations */ struct rw_semaphore node_write; /* locking node writes */ struct rw_semaphore node_change; /* locking node change */ |