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-rw-r--r--fs/btrfs/volumes.h72
1 files changed, 42 insertions, 30 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 09ed29c67848..24ba6bc3ec34 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -51,8 +51,7 @@ struct btrfs_device {
struct list_head dev_list;
struct list_head dev_alloc_list;
struct btrfs_fs_devices *fs_devices;
-
- struct btrfs_root *dev_root;
+ struct btrfs_fs_info *fs_info;
struct rcu_string *name;
@@ -62,7 +61,7 @@ struct btrfs_device {
int running_pending;
/* regular prio bios */
struct btrfs_pending_bios pending_bios;
- /* WRITE_SYNC bios */
+ /* sync bios */
struct btrfs_pending_bios pending_sync_bios;
struct block_device *bdev;
@@ -371,27 +370,48 @@ struct btrfs_balance_control {
struct btrfs_balance_progress stat;
};
+enum btrfs_map_op {
+ BTRFS_MAP_READ,
+ BTRFS_MAP_WRITE,
+ BTRFS_MAP_DISCARD,
+ BTRFS_MAP_GET_READ_MIRRORS,
+};
+
+static inline enum btrfs_map_op btrfs_op(struct bio *bio)
+{
+ switch (bio_op(bio)) {
+ case REQ_OP_DISCARD:
+ return BTRFS_MAP_DISCARD;
+ case REQ_OP_WRITE:
+ return BTRFS_MAP_WRITE;
+ default:
+ WARN_ON_ONCE(1);
+ case REQ_OP_READ:
+ return BTRFS_MAP_READ;
+ }
+}
+
int btrfs_account_dev_extents_size(struct btrfs_device *device, u64 start,
u64 end, u64 *length);
void btrfs_get_bbio(struct btrfs_bio *bbio);
void btrfs_put_bbio(struct btrfs_bio *bbio);
-int btrfs_map_block(struct btrfs_fs_info *fs_info, int op,
+int btrfs_map_block(struct btrfs_fs_info *fs_info, enum btrfs_map_op op,
u64 logical, u64 *length,
struct btrfs_bio **bbio_ret, int mirror_num);
-int btrfs_map_sblock(struct btrfs_fs_info *fs_info, int op,
+int btrfs_map_sblock(struct btrfs_fs_info *fs_info, enum btrfs_map_op op,
u64 logical, u64 *length,
struct btrfs_bio **bbio_ret, int mirror_num,
int need_raid_map);
int btrfs_rmap_block(struct btrfs_fs_info *fs_info,
u64 chunk_start, u64 physical, u64 devid,
u64 **logical, int *naddrs, int *stripe_len);
-int btrfs_read_sys_array(struct btrfs_root *root);
-int btrfs_read_chunk_tree(struct btrfs_root *root);
+int btrfs_read_sys_array(struct btrfs_fs_info *fs_info);
+int btrfs_read_chunk_tree(struct btrfs_fs_info *fs_info);
int btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
- struct btrfs_root *extent_root, u64 type);
+ struct btrfs_fs_info *fs_info, u64 type);
void btrfs_mapping_init(struct btrfs_mapping_tree *tree);
void btrfs_mapping_tree_free(struct btrfs_mapping_tree *tree);
-int btrfs_map_bio(struct btrfs_root *root, struct bio *bio,
+int btrfs_map_bio(struct btrfs_fs_info *fs_info, struct bio *bio,
int mirror_num, int async_submit);
int btrfs_open_devices(struct btrfs_fs_devices *fs_devices,
fmode_t flags, void *holder);
@@ -401,16 +421,17 @@ int btrfs_close_devices(struct btrfs_fs_devices *fs_devices);
void btrfs_close_extra_devices(struct btrfs_fs_devices *fs_devices, int step);
void btrfs_assign_next_active_device(struct btrfs_fs_info *fs_info,
struct btrfs_device *device, struct btrfs_device *this_dev);
-int btrfs_find_device_missing_or_by_path(struct btrfs_root *root,
+int btrfs_find_device_missing_or_by_path(struct btrfs_fs_info *fs_info,
char *device_path,
struct btrfs_device **device);
-int btrfs_find_device_by_devspec(struct btrfs_root *root, u64 devid,
+int btrfs_find_device_by_devspec(struct btrfs_fs_info *fs_info, u64 devid,
char *devpath,
struct btrfs_device **device);
struct btrfs_device *btrfs_alloc_device(struct btrfs_fs_info *fs_info,
const u64 *devid,
const u8 *uuid);
-int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid);
+int btrfs_rm_device(struct btrfs_fs_info *fs_info,
+ char *device_path, u64 devid);
void btrfs_cleanup_fs_uuids(void);
int btrfs_num_copies(struct btrfs_fs_info *fs_info, u64 logical, u64 len);
int btrfs_grow_device(struct btrfs_trans_handle *trans,
@@ -418,8 +439,9 @@ int btrfs_grow_device(struct btrfs_trans_handle *trans,
struct btrfs_device *btrfs_find_device(struct btrfs_fs_info *fs_info, u64 devid,
u8 *uuid, u8 *fsid);
int btrfs_shrink_device(struct btrfs_device *device, u64 new_size);
-int btrfs_init_new_device(struct btrfs_root *root, char *path);
-int btrfs_init_dev_replace_tgtdev(struct btrfs_root *root, char *device_path,
+int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *path);
+int btrfs_init_dev_replace_tgtdev(struct btrfs_fs_info *fs_info,
+ char *device_path,
struct btrfs_device *srcdev,
struct btrfs_device **device_out);
int btrfs_balance(struct btrfs_balance_control *bctl,
@@ -430,7 +452,7 @@ int btrfs_pause_balance(struct btrfs_fs_info *fs_info);
int btrfs_cancel_balance(struct btrfs_fs_info *fs_info);
int btrfs_create_uuid_tree(struct btrfs_fs_info *fs_info);
int btrfs_check_uuid_tree(struct btrfs_fs_info *fs_info);
-int btrfs_chunk_readonly(struct btrfs_root *root, u64 chunk_offset);
+int btrfs_chunk_readonly(struct btrfs_fs_info *fs_info, u64 chunk_offset);
int find_free_dev_extent_start(struct btrfs_transaction *transaction,
struct btrfs_device *device, u64 num_bytes,
u64 search_start, u64 *start, u64 *max_avail);
@@ -438,7 +460,7 @@ int find_free_dev_extent(struct btrfs_trans_handle *trans,
struct btrfs_device *device, u64 num_bytes,
u64 *start, u64 *max_avail);
void btrfs_dev_stat_inc_and_print(struct btrfs_device *dev, int index);
-int btrfs_get_dev_stats(struct btrfs_root *root,
+int btrfs_get_dev_stats(struct btrfs_fs_info *fs_info,
struct btrfs_ioctl_get_dev_stats *stats);
void btrfs_init_devices_late(struct btrfs_fs_info *fs_info);
int btrfs_init_dev_stats(struct btrfs_fs_info *fs_info);
@@ -455,14 +477,14 @@ void btrfs_init_dev_replace_tgtdev_for_resume(struct btrfs_fs_info *fs_info,
void btrfs_scratch_superblocks(struct block_device *bdev, char *device_path);
int btrfs_is_parity_mirror(struct btrfs_mapping_tree *map_tree,
u64 logical, u64 len, int mirror_num);
-unsigned long btrfs_full_stripe_len(struct btrfs_root *root,
+unsigned long btrfs_full_stripe_len(struct btrfs_fs_info *fs_info,
struct btrfs_mapping_tree *map_tree,
u64 logical);
int btrfs_finish_chunk_alloc(struct btrfs_trans_handle *trans,
- struct btrfs_root *extent_root,
+ struct btrfs_fs_info *fs_info,
u64 chunk_offset, u64 chunk_size);
int btrfs_remove_chunk(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, u64 chunk_offset);
+ struct btrfs_fs_info *fs_info, u64 chunk_offset);
static inline int btrfs_dev_stats_dirty(struct btrfs_device *dev)
{
@@ -509,19 +531,9 @@ static inline void btrfs_dev_stat_reset(struct btrfs_device *dev,
}
void btrfs_update_commit_device_size(struct btrfs_fs_info *fs_info);
-void btrfs_update_commit_device_bytes_used(struct btrfs_root *root,
+void btrfs_update_commit_device_bytes_used(struct btrfs_fs_info *fs_info,
struct btrfs_transaction *transaction);
-static inline void lock_chunks(struct btrfs_root *root)
-{
- mutex_lock(&root->fs_info->chunk_mutex);
-}
-
-static inline void unlock_chunks(struct btrfs_root *root)
-{
- mutex_unlock(&root->fs_info->chunk_mutex);
-}
-
struct list_head *btrfs_get_fs_uuids(void);
void btrfs_set_fs_info_ptr(struct btrfs_fs_info *fs_info);
void btrfs_reset_fs_info_ptr(struct btrfs_fs_info *fs_info);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-30 18:13:27 +0000