diff options
Diffstat (limited to 'drivers/staging/erofs/utils.c')
| -rw-r--r-- | drivers/staging/erofs/utils.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/staging/erofs/utils.c b/drivers/staging/erofs/utils.c index 3dec4f80ed99..6748def67e74 100644 --- a/drivers/staging/erofs/utils.c +++ b/drivers/staging/erofs/utils.c @@ -29,3 +29,20 @@ struct page *erofs_allocpage(struct list_head *pool, gfp_t gfp) return page; } +static DEFINE_MUTEX(erofs_sb_list_lock); +static LIST_HEAD(erofs_sb_list); + +void erofs_register_super(struct super_block *sb) +{ + mutex_lock(&erofs_sb_list_lock); + list_add(&EROFS_SB(sb)->list, &erofs_sb_list); + mutex_unlock(&erofs_sb_list_lock); +} + +void erofs_unregister_super(struct super_block *sb) +{ + mutex_lock(&erofs_sb_list_lock); + list_del(&EROFS_SB(sb)->list); + mutex_unlock(&erofs_sb_list_lock); +} + |