diff options
Diffstat (limited to 'fs/btrfs/locking.h')
| -rw-r--r-- | fs/btrfs/locking.h | 24 |
1 files changed, 4 insertions, 20 deletions
diff --git a/fs/btrfs/locking.h b/fs/btrfs/locking.h index 3ea81ed3320b..a2e1f1f5c6e3 100644 --- a/fs/btrfs/locking.h +++ b/fs/btrfs/locking.h @@ -13,8 +13,6 @@ #define BTRFS_WRITE_LOCK 1 #define BTRFS_READ_LOCK 2 -#define BTRFS_WRITE_LOCK_BLOCKING 3 -#define BTRFS_READ_LOCK_BLOCKING 4 /* * We are limited in number of subclasses by MAX_LOCKDEP_SUBCLASSES, which at @@ -89,42 +87,28 @@ void __btrfs_tree_lock(struct extent_buffer *eb, enum btrfs_lock_nesting nest); void btrfs_tree_lock(struct extent_buffer *eb); void btrfs_tree_unlock(struct extent_buffer *eb); -void __btrfs_tree_read_lock(struct extent_buffer *eb, enum btrfs_lock_nesting nest, - bool recurse); +void __btrfs_tree_read_lock(struct extent_buffer *eb, enum btrfs_lock_nesting nest); void btrfs_tree_read_lock(struct extent_buffer *eb); void btrfs_tree_read_unlock(struct extent_buffer *eb); -void btrfs_tree_read_unlock_blocking(struct extent_buffer *eb); -void btrfs_set_lock_blocking_read(struct extent_buffer *eb); -void btrfs_set_lock_blocking_write(struct extent_buffer *eb); int btrfs_try_tree_read_lock(struct extent_buffer *eb); int btrfs_try_tree_write_lock(struct extent_buffer *eb); -int btrfs_tree_read_lock_atomic(struct extent_buffer *eb); struct extent_buffer *btrfs_lock_root_node(struct btrfs_root *root); -struct extent_buffer *__btrfs_read_lock_root_node(struct btrfs_root *root, - bool recurse); - -static inline struct extent_buffer *btrfs_read_lock_root_node(struct btrfs_root *root) -{ - return __btrfs_read_lock_root_node(root, false); -} +struct extent_buffer *btrfs_read_lock_root_node(struct btrfs_root *root); #ifdef CONFIG_BTRFS_DEBUG static inline void btrfs_assert_tree_locked(struct extent_buffer *eb) { - BUG_ON(!eb->write_locks); + lockdep_assert_held(&eb->lock); } #else static inline void btrfs_assert_tree_locked(struct extent_buffer *eb) { } #endif -void btrfs_set_path_blocking(struct btrfs_path *p); void btrfs_unlock_up_safe(struct btrfs_path *path, int level); static inline void btrfs_tree_unlock_rw(struct extent_buffer *eb, int rw) { - if (rw == BTRFS_WRITE_LOCK || rw == BTRFS_WRITE_LOCK_BLOCKING) + if (rw == BTRFS_WRITE_LOCK) btrfs_tree_unlock(eb); - else if (rw == BTRFS_READ_LOCK_BLOCKING) - btrfs_tree_read_unlock_blocking(eb); else if (rw == BTRFS_READ_LOCK) btrfs_tree_read_unlock(eb); else |