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Diffstat (limited to 'fs/btrfs/ctree.h')
-rw-r--r--fs/btrfs/ctree.h84
1 files changed, 46 insertions, 38 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index adf16307842a..105d4d43993e 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -97,6 +97,14 @@ static const int btrfs_csum_sizes[] = { 4 };
#define BTRFS_MAX_EXTENT_SIZE SZ_128M
+/*
+ * Count how many BTRFS_MAX_EXTENT_SIZE cover the @size
+ */
+static inline u32 count_max_extents(u64 size)
+{
+ return div_u64(size + BTRFS_MAX_EXTENT_SIZE - 1, BTRFS_MAX_EXTENT_SIZE);
+}
+
struct btrfs_mapping_tree {
struct extent_map_tree map_tree;
};
@@ -1953,7 +1961,7 @@ BTRFS_SETGET_STACK_FUNCS(disk_key_offset, struct btrfs_disk_key, offset, 64);
BTRFS_SETGET_STACK_FUNCS(disk_key_type, struct btrfs_disk_key, type, 8);
static inline void btrfs_disk_key_to_cpu(struct btrfs_key *cpu,
- struct btrfs_disk_key *disk)
+ const struct btrfs_disk_key *disk)
{
cpu->offset = le64_to_cpu(disk->offset);
cpu->type = disk->type;
@@ -1961,7 +1969,7 @@ static inline void btrfs_disk_key_to_cpu(struct btrfs_key *cpu,
}
static inline void btrfs_cpu_key_to_disk(struct btrfs_disk_key *disk,
- struct btrfs_key *cpu)
+ const struct btrfs_key *cpu)
{
disk->offset = cpu_to_le64(cpu->offset);
disk->type = cpu->type;
@@ -1993,8 +2001,7 @@ static inline void btrfs_dir_item_key_to_cpu(struct extent_buffer *eb,
btrfs_disk_key_to_cpu(key, &disk_key);
}
-
-static inline u8 btrfs_key_type(struct btrfs_key *key)
+static inline u8 btrfs_key_type(const struct btrfs_key *key)
{
return key->type;
}
@@ -2577,8 +2584,7 @@ int btrfs_pin_extent_for_log_replay(struct btrfs_fs_info *fs_info,
u64 bytenr, u64 num_bytes);
int btrfs_exclude_logged_extents(struct btrfs_fs_info *fs_info,
struct extent_buffer *eb);
-int btrfs_cross_ref_exist(struct btrfs_trans_handle *trans,
- struct btrfs_root *root,
+int btrfs_cross_ref_exist(struct btrfs_root *root,
u64 objectid, u64 offset, u64 bytenr);
struct btrfs_block_group_cache *btrfs_lookup_block_group(
struct btrfs_fs_info *info,
@@ -2587,10 +2593,11 @@ void btrfs_get_block_group(struct btrfs_block_group_cache *cache);
void btrfs_put_block_group(struct btrfs_block_group_cache *cache);
int get_block_group_index(struct btrfs_block_group_cache *cache);
struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, u64 parent,
- u64 root_objectid,
- struct btrfs_disk_key *key, int level,
- u64 hint, u64 empty_size);
+ struct btrfs_root *root,
+ u64 parent, u64 root_objectid,
+ const struct btrfs_disk_key *key,
+ int level, u64 hint,
+ u64 empty_size);
void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct extent_buffer *buf,
@@ -2623,8 +2630,7 @@ int btrfs_free_reserved_extent(struct btrfs_fs_info *fs_info,
u64 start, u64 len, int delalloc);
int btrfs_free_and_pin_reserved_extent(struct btrfs_fs_info *fs_info,
u64 start, u64 len);
-void btrfs_prepare_extent_commit(struct btrfs_trans_handle *trans,
- struct btrfs_fs_info *fs_info);
+void btrfs_prepare_extent_commit(struct btrfs_fs_info *fs_info);
int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info);
int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans,
@@ -2696,8 +2702,7 @@ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
int nitems,
u64 *qgroup_reserved, bool use_global_rsv);
void btrfs_subvolume_release_metadata(struct btrfs_fs_info *fs_info,
- struct btrfs_block_rsv *rsv,
- u64 qgroup_reserved);
+ struct btrfs_block_rsv *rsv);
int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes);
void btrfs_delalloc_release_metadata(struct inode *inode, u64 num_bytes);
int btrfs_delalloc_reserve_space(struct inode *inode, u64 start, u64 len);
@@ -2724,7 +2729,7 @@ int btrfs_cond_migrate_bytes(struct btrfs_fs_info *fs_info,
void btrfs_block_rsv_release(struct btrfs_fs_info *fs_info,
struct btrfs_block_rsv *block_rsv,
u64 num_bytes);
-int btrfs_inc_block_group_ro(struct btrfs_root *root,
+int btrfs_inc_block_group_ro(struct btrfs_fs_info *fs_info,
struct btrfs_block_group_cache *cache);
void btrfs_dec_block_group_ro(struct btrfs_block_group_cache *cache);
void btrfs_put_block_group_cache(struct btrfs_fs_info *info);
@@ -2750,9 +2755,9 @@ u64 add_new_free_space(struct btrfs_block_group_cache *block_group,
struct btrfs_fs_info *info, u64 start, u64 end);
/* ctree.c */
-int btrfs_bin_search(struct extent_buffer *eb, struct btrfs_key *key,
+int btrfs_bin_search(struct extent_buffer *eb, const struct btrfs_key *key,
int level, int *slot);
-int btrfs_comp_cpu_keys(struct btrfs_key *k1, struct btrfs_key *k2);
+int btrfs_comp_cpu_keys(const struct btrfs_key *k1, const struct btrfs_key *k2);
int btrfs_previous_item(struct btrfs_root *root,
struct btrfs_path *path, u64 min_objectid,
int type);
@@ -2760,7 +2765,7 @@ int btrfs_previous_extent_item(struct btrfs_root *root,
struct btrfs_path *path, u64 min_objectid);
void btrfs_set_item_key_safe(struct btrfs_fs_info *fs_info,
struct btrfs_path *path,
- struct btrfs_key *new_key);
+ const struct btrfs_key *new_key);
struct extent_buffer *btrfs_root_node(struct btrfs_root *root);
struct extent_buffer *btrfs_lock_root_node(struct btrfs_root *root);
int btrfs_find_next_key(struct btrfs_root *root, struct btrfs_path *path,
@@ -2802,22 +2807,23 @@ void btrfs_truncate_item(struct btrfs_fs_info *fs_info,
int btrfs_split_item(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path,
- struct btrfs_key *new_key,
+ const struct btrfs_key *new_key,
unsigned long split_offset);
int btrfs_duplicate_item(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path,
- struct btrfs_key *new_key);
+ const struct btrfs_key *new_key);
int btrfs_find_item(struct btrfs_root *fs_root, struct btrfs_path *path,
u64 inum, u64 ioff, u8 key_type, struct btrfs_key *found_key);
-int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root
- *root, struct btrfs_key *key, struct btrfs_path *p, int
- ins_len, int cow);
-int btrfs_search_old_slot(struct btrfs_root *root, struct btrfs_key *key,
+int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root *root,
+ const struct btrfs_key *key, struct btrfs_path *p,
+ int ins_len, int cow);
+int btrfs_search_old_slot(struct btrfs_root *root, const struct btrfs_key *key,
struct btrfs_path *p, u64 time_seq);
int btrfs_search_slot_for_read(struct btrfs_root *root,
- struct btrfs_key *key, struct btrfs_path *p,
- int find_higher, int return_any);
+ const struct btrfs_key *key,
+ struct btrfs_path *p, int find_higher,
+ int return_any);
int btrfs_realloc_node(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct extent_buffer *parent,
int start_slot, u64 *last_ret,
@@ -2840,19 +2846,20 @@ static inline int btrfs_del_item(struct btrfs_trans_handle *trans,
}
void setup_items_for_insert(struct btrfs_root *root, struct btrfs_path *path,
- struct btrfs_key *cpu_key, u32 *data_size,
+ const struct btrfs_key *cpu_key, u32 *data_size,
u32 total_data, u32 total_size, int nr);
-int btrfs_insert_item(struct btrfs_trans_handle *trans, struct btrfs_root
- *root, struct btrfs_key *key, void *data, u32 data_size);
+int btrfs_insert_item(struct btrfs_trans_handle *trans, struct btrfs_root *root,
+ const struct btrfs_key *key, void *data, u32 data_size);
int btrfs_insert_empty_items(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path,
- struct btrfs_key *cpu_key, u32 *data_size, int nr);
+ const struct btrfs_key *cpu_key, u32 *data_size,
+ int nr);
static inline int btrfs_insert_empty_item(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path,
- struct btrfs_key *key,
+ const struct btrfs_key *key,
u32 data_size)
{
return btrfs_insert_empty_items(trans, root, path, key, &data_size, 1);
@@ -2941,15 +2948,15 @@ int btrfs_del_root_ref(struct btrfs_trans_handle *trans,
u64 root_id, u64 ref_id, u64 dirid, u64 *sequence,
const char *name, int name_len);
int btrfs_del_root(struct btrfs_trans_handle *trans, struct btrfs_root *root,
- struct btrfs_key *key);
-int btrfs_insert_root(struct btrfs_trans_handle *trans, struct btrfs_root
- *root, struct btrfs_key *key, struct btrfs_root_item
- *item);
+ const struct btrfs_key *key);
+int btrfs_insert_root(struct btrfs_trans_handle *trans, struct btrfs_root *root,
+ const struct btrfs_key *key,
+ struct btrfs_root_item *item);
int __must_check btrfs_update_root(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_key *key,
struct btrfs_root_item *item);
-int btrfs_find_root(struct btrfs_root *root, struct btrfs_key *search_key,
+int btrfs_find_root(struct btrfs_root *root, const struct btrfs_key *search_key,
struct btrfs_path *path, struct btrfs_root_item *root_item,
struct btrfs_key *root_key);
int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info);
@@ -3119,7 +3126,7 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry);
int btrfs_set_inode_index(struct inode *dir, u64 *index);
int btrfs_unlink_inode(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
- struct inode *dir, struct inode *inode,
+ struct btrfs_inode *dir, struct btrfs_inode *inode,
const char *name, int name_len);
int btrfs_add_link(struct btrfs_trans_handle *trans,
struct inode *parent_inode, struct inode *inode,
@@ -3447,7 +3454,8 @@ do { \
"BTRFS: Transaction aborted (error %d)\n", \
(errno)); \
} else { \
- pr_debug("BTRFS: Transaction aborted (error %d)\n", \
+ btrfs_debug((trans)->fs_info, \
+ "Transaction aborted (error %d)", \
(errno)); \
} \
} \
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.