diff options
Diffstat (limited to 'fs/btrfs/extent-tree.h')
| -rw-r--r-- | fs/btrfs/extent-tree.h | 82 |
1 files changed, 49 insertions, 33 deletions
diff --git a/fs/btrfs/extent-tree.h b/fs/btrfs/extent-tree.h index 88c249c37516..71bb8109c969 100644 --- a/fs/btrfs/extent-tree.h +++ b/fs/btrfs/extent-tree.h @@ -3,10 +3,20 @@ #ifndef BTRFS_EXTENT_TREE_H #define BTRFS_EXTENT_TREE_H -#include "misc.h" +#include <linux/types.h> #include "block-group.h" +#include "locking.h" +struct extent_buffer; struct btrfs_free_cluster; +struct btrfs_fs_info; +struct btrfs_root; +struct btrfs_path; +struct btrfs_ref; +struct btrfs_disk_key; +struct btrfs_delayed_ref_head; +struct btrfs_delayed_ref_root; +struct btrfs_extent_inline_ref; enum btrfs_extent_allocation_policy { BTRFS_EXTENT_ALLOC_CLUSTERED, @@ -20,7 +30,6 @@ struct find_free_extent_ctl { u64 min_alloc_size; u64 empty_size; u64 flags; - int delalloc; /* Where to start the search inside the bg */ u64 search_start; @@ -30,6 +39,7 @@ struct find_free_extent_ctl { struct btrfs_free_cluster *last_ptr; bool use_cluster; + bool delalloc; bool have_caching_bg; bool orig_have_caching_bg; @@ -39,6 +49,16 @@ struct find_free_extent_ctl { /* Allocation is called for data relocation */ bool for_data_reloc; + /* + * Set to true if we're retrying the allocation on this block group + * after waiting for caching progress, this is so that we retry only + * once before moving on to another block group. + */ + bool retry_uncached; + + /* Whether or not the allocator is currently following a hint. */ + bool hinted; + /* RAID index, converted from flags */ int index; @@ -47,13 +67,6 @@ struct find_free_extent_ctl { */ int loop; - /* - * Set to true if we're retrying the allocation on this block group - * after waiting for caching progress, this is so that we retry only - * once before moving on to another block group. - */ - bool retry_uncached; - /* If current block group is cached */ int cached; @@ -72,9 +85,6 @@ struct find_free_extent_ctl { /* Allocation policy */ enum btrfs_extent_allocation_policy policy; - /* Whether or not the allocator is currently following a hint */ - bool hinted; - /* Size class of block groups to prefer in early loops */ enum btrfs_block_group_size_class size_class; }; @@ -87,25 +97,24 @@ enum btrfs_inline_ref_type { }; int btrfs_get_extent_inline_ref_type(const struct extent_buffer *eb, - struct btrfs_extent_inline_ref *iref, + const struct btrfs_extent_inline_ref *iref, enum btrfs_inline_ref_type is_data); u64 hash_extent_data_ref(u64 root_objectid, u64 owner, u64 offset); -int btrfs_run_delayed_refs(struct btrfs_trans_handle *trans, unsigned long count); -void btrfs_cleanup_ref_head_accounting(struct btrfs_fs_info *fs_info, +int btrfs_run_delayed_refs(struct btrfs_trans_handle *trans, u64 min_bytes); +u64 btrfs_cleanup_ref_head_accounting(struct btrfs_fs_info *fs_info, struct btrfs_delayed_ref_root *delayed_refs, struct btrfs_delayed_ref_head *head); int btrfs_lookup_data_extent(struct btrfs_fs_info *fs_info, u64 start, u64 len); int btrfs_lookup_extent_info(struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info, u64 bytenr, - u64 offset, int metadata, u64 *refs, u64 *flags); -int btrfs_pin_extent(struct btrfs_trans_handle *trans, u64 bytenr, u64 num, - int reserved); + u64 offset, int metadata, u64 *refs, u64 *flags, + u64 *owner_root); +int btrfs_pin_extent(struct btrfs_trans_handle *trans, u64 bytenr, u64 num); int btrfs_pin_extent_for_log_replay(struct btrfs_trans_handle *trans, - u64 bytenr, u64 num_bytes); + const struct extent_buffer *eb); int btrfs_exclude_logged_extents(struct extent_buffer *eb); -int btrfs_cross_ref_exist(struct btrfs_root *root, - u64 objectid, u64 offset, u64 bytenr, bool strict, +int btrfs_cross_ref_exist(struct btrfs_inode *inode, u64 offset, u64 bytenr, struct btrfs_path *path); struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, @@ -113,11 +122,12 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans, const struct btrfs_disk_key *key, int level, u64 hint, u64 empty_size, + u64 reloc_src_root, enum btrfs_lock_nesting nest); -void btrfs_free_tree_block(struct btrfs_trans_handle *trans, - u64 root_id, - struct extent_buffer *buf, - u64 parent, int last_ref); +int btrfs_free_tree_block(struct btrfs_trans_handle *trans, + u64 root_id, + struct extent_buffer *buf, + u64 parent, int last_ref); int btrfs_alloc_reserved_file_extent(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 owner, u64 offset, u64 ram_bytes, @@ -127,25 +137,31 @@ int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans, struct btrfs_key *ins); int btrfs_reserve_extent(struct btrfs_root *root, u64 ram_bytes, u64 num_bytes, u64 min_alloc_size, u64 empty_size, u64 hint_byte, - struct btrfs_key *ins, int is_data, int delalloc); + struct btrfs_key *ins, bool is_data, bool delalloc); int btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root, - struct extent_buffer *buf, int full_backref); + struct extent_buffer *buf, bool full_backref); int btrfs_dec_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root, - struct extent_buffer *buf, int full_backref); + struct extent_buffer *buf, bool full_backref); int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans, struct extent_buffer *eb, u64 flags); int btrfs_free_extent(struct btrfs_trans_handle *trans, struct btrfs_ref *ref); -int btrfs_free_reserved_extent(struct btrfs_fs_info *fs_info, - u64 start, u64 len, int delalloc); -int btrfs_pin_reserved_extent(struct btrfs_trans_handle *trans, u64 start, u64 len); +u64 btrfs_get_extent_owner_root(struct btrfs_fs_info *fs_info, + struct extent_buffer *leaf, int slot); +int btrfs_free_reserved_extent(struct btrfs_fs_info *fs_info, u64 start, u64 len, + bool is_delalloc); +int btrfs_pin_reserved_extent(struct btrfs_trans_handle *trans, + const struct extent_buffer *eb); int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans); int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans, struct btrfs_ref *generic_ref); -int __must_check btrfs_drop_snapshot(struct btrfs_root *root, int update_ref, - int for_reloc); +int btrfs_drop_snapshot(struct btrfs_root *root, bool update_ref, bool for_reloc); int btrfs_drop_subtree(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct extent_buffer *node, struct extent_buffer *parent); +void btrfs_error_unpin_extent_range(struct btrfs_fs_info *fs_info, u64 start, u64 end); +int btrfs_discard_extent(struct btrfs_fs_info *fs_info, u64 bytenr, + u64 num_bytes, u64 *actual_bytes); +int btrfs_trim_fs(struct btrfs_fs_info *fs_info, struct fstrim_range *range); #endif |