diff options
| author | Jan Kara <jack@suse.cz> | 2016-11-23 12:53:00 +0100 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2016-11-23 12:53:00 +0100 |
| commit | ba6379f7e6c7e51b3c0e92672bc61bb6961c2b5e (patch) | |
| tree | c5e086577b7eee8adec845698b23b6e3b33b9862 /include/linux/fs.h | |
| parent | 9c763584b7c8911106bb77af7e648bef09af9d80 (diff) | |
fs: Provide function to get superblock with exclusive s_umount
Quota code will need a variant of get_super_thawed() that returns
superblock with s_umount held in exclusive mode to serialize quota on
and quota off operations. Provide this functionality.
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index dc0478c07b2a..d04cfdefcd11 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2949,8 +2949,10 @@ extern void put_filesystem(struct file_system_type *fs); extern struct file_system_type *get_fs_type(const char *name); extern struct super_block *get_super(struct block_device *); extern struct super_block *get_super_thawed(struct block_device *); +extern struct super_block *get_super_exclusive_thawed(struct block_device *bdev); extern struct super_block *get_active_super(struct block_device *bdev); extern void drop_super(struct super_block *sb); +extern void drop_super_exclusive(struct super_block *sb); extern void iterate_supers(void (*)(struct super_block *, void *), void *); extern void iterate_supers_type(struct file_system_type *, void (*)(struct super_block *, void *), void *); |