diff options
Diffstat (limited to 'fs/btrfs/block-group.h')
| -rw-r--r-- | fs/btrfs/block-group.h | 46 |
1 files changed, 33 insertions, 13 deletions
diff --git a/fs/btrfs/block-group.h b/fs/btrfs/block-group.h index c4a1f01cc1c2..9de356bcb411 100644 --- a/fs/btrfs/block-group.h +++ b/fs/btrfs/block-group.h @@ -3,9 +3,22 @@ #ifndef BTRFS_BLOCK_GROUP_H #define BTRFS_BLOCK_GROUP_H +#include <linux/atomic.h> +#include <linux/mutex.h> +#include <linux/list.h> +#include <linux/spinlock.h> +#include <linux/refcount.h> +#include <linux/wait.h> +#include <linux/sizes.h> +#include <linux/rwsem.h> +#include <linux/rbtree.h> +#include <uapi/linux/btrfs_tree.h> #include "free-space-cache.h" struct btrfs_chunk_map; +struct btrfs_fs_info; +struct btrfs_inode; +struct btrfs_trans_handle; enum btrfs_disk_cache_state { BTRFS_DC_WRITTEN, @@ -102,7 +115,7 @@ struct btrfs_caching_control { struct btrfs_block_group { struct btrfs_fs_info *fs_info; - struct inode *inode; + struct btrfs_inode *inode; spinlock_t lock; u64 start; u64 length; @@ -250,15 +263,22 @@ struct btrfs_block_group { struct work_struct zone_finish_work; struct extent_buffer *last_eb; enum btrfs_block_group_size_class size_class; + u64 reclaim_mark; }; -static inline u64 btrfs_block_group_end(struct btrfs_block_group *block_group) +static inline u64 btrfs_block_group_end(const struct btrfs_block_group *block_group) { return (block_group->start + block_group->length); } -static inline bool btrfs_is_block_group_data_only( - struct btrfs_block_group *block_group) +static inline bool btrfs_is_block_group_used(const struct btrfs_block_group *bg) +{ + lockdep_assert_held(&bg->lock); + + return (bg->used > 0 || bg->reserved > 0 || bg->pinned > 0); +} + +static inline bool btrfs_is_block_group_data_only(const struct btrfs_block_group *block_group) { /* * In mixed mode the fragmentation is expected to be high, lowering the @@ -269,7 +289,7 @@ static inline bool btrfs_is_block_group_data_only( } #ifdef CONFIG_BTRFS_DEBUG -int btrfs_should_fragment_free_space(struct btrfs_block_group *block_group); +int btrfs_should_fragment_free_space(const struct btrfs_block_group *block_group); #endif struct btrfs_block_group *btrfs_lookup_first_block_group( @@ -290,7 +310,6 @@ void btrfs_wait_nocow_writers(struct btrfs_block_group *bg); void btrfs_wait_block_group_cache_progress(struct btrfs_block_group *cache, u64 num_bytes); int btrfs_cache_block_group(struct btrfs_block_group *cache, bool wait); -void btrfs_put_caching_control(struct btrfs_caching_control *ctl); struct btrfs_caching_control *btrfs_get_caching_control( struct btrfs_block_group *cache); int btrfs_add_new_free_space(struct btrfs_block_group *block_group, @@ -307,8 +326,8 @@ void btrfs_reclaim_bgs(struct btrfs_fs_info *fs_info); void btrfs_mark_bg_to_reclaim(struct btrfs_block_group *bg); int btrfs_read_block_groups(struct btrfs_fs_info *info); struct btrfs_block_group *btrfs_make_block_group(struct btrfs_trans_handle *trans, - u64 type, - u64 chunk_offset, u64 size); + struct btrfs_space_info *space_info, + u64 type, u64 chunk_offset, u64 size); void btrfs_create_pending_block_groups(struct btrfs_trans_handle *trans); int btrfs_inc_block_group_ro(struct btrfs_block_group *cache, bool do_chunk_alloc); @@ -321,9 +340,10 @@ int btrfs_update_block_group(struct btrfs_trans_handle *trans, int btrfs_add_reserved_bytes(struct btrfs_block_group *cache, u64 ram_bytes, u64 num_bytes, int delalloc, bool force_wrong_size_class); -void btrfs_free_reserved_bytes(struct btrfs_block_group *cache, - u64 num_bytes, int delalloc); -int btrfs_chunk_alloc(struct btrfs_trans_handle *trans, u64 flags, +void btrfs_free_reserved_bytes(struct btrfs_block_group *cache, u64 num_bytes, + bool is_delalloc); +int btrfs_chunk_alloc(struct btrfs_trans_handle *trans, + struct btrfs_space_info *space_info, u64 flags, enum btrfs_chunk_alloc_enum force); int btrfs_force_chunk_alloc(struct btrfs_trans_handle *trans, u64 type); void check_system_chunk(struct btrfs_trans_handle *trans, const u64 type); @@ -350,7 +370,7 @@ static inline u64 btrfs_system_alloc_profile(struct btrfs_fs_info *fs_info) return btrfs_get_alloc_profile(fs_info, BTRFS_BLOCK_GROUP_SYSTEM); } -static inline int btrfs_block_group_done(struct btrfs_block_group *cache) +static inline int btrfs_block_group_done(const struct btrfs_block_group *cache) { smp_mb(); return cache->cached == BTRFS_CACHE_FINISHED || @@ -367,6 +387,6 @@ enum btrfs_block_group_size_class btrfs_calc_block_group_size_class(u64 size); int btrfs_use_block_group_size_class(struct btrfs_block_group *bg, enum btrfs_block_group_size_class size_class, bool force_wrong_size_class); -bool btrfs_block_group_should_use_size_class(struct btrfs_block_group *bg); +bool btrfs_block_group_should_use_size_class(const struct btrfs_block_group *bg); #endif /* BTRFS_BLOCK_GROUP_H */ |