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| author | Chao Yu <yuchao0@huawei.com> | 2018-02-26 22:04:13 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-03-13 08:05:48 +0900 |
| commit | 846ae671ad368e344a2b141c0f19e1014b27a0dd (patch) | |
| tree | b220f05ab079e37343b841d368a58916388149ab /fs/f2fs/f2fs.h | |
| parent | 17cd07ae95073c298af92c1ba14ac58ce84de33b (diff) | |
| download | linux-846ae671ad368e344a2b141c0f19e1014b27a0dd.tar.bz2 | |
f2fs: expose extension_list sysfs entry
This patch adds a sysfs entry 'extension_list' to support
query/add/del item in extension list.
Query:
cat /sys/fs/f2fs/<device>/extension_list
Add:
echo 'extension' > /sys/fs/f2fs/<device>/extension_list
Del:
echo '!extension' > /sys/fs/f2fs/<device>/extension_list
Signed-off-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 | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 6d0e7b185b39..3bb4e943454a 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1047,7 +1047,7 @@ struct f2fs_sb_info { struct super_block *sb; /* pointer to VFS super block */ struct proc_dir_entry *s_proc; /* proc entry */ struct f2fs_super_block *raw_super; /* raw super block pointer */ - struct mutex sb_lock; /* lock for raw super block */ + struct rw_semaphore sb_lock; /* lock for raw super block */ int valid_super_block; /* valid super block no */ unsigned long s_flag; /* flags for sbi */ @@ -2605,6 +2605,8 @@ void handle_failed_inode(struct inode *inode); /* * namei.c */ +int update_extension_list(struct f2fs_sb_info *sbi, const char *name, + bool set); struct dentry *f2fs_get_parent(struct dentry *child); /* |