From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/fs/btrfs/disk-io.h | 78 ++++++++++++++++----------------------
1 files changed, 33 insertions(+), 45 deletions(-)
diff --git a/kernel/fs/btrfs/disk-io.h b/kernel/fs/btrfs/disk-io.h
index 7a4a60f..e3b9694 100644
--- a/kernel/fs/btrfs/disk-io.h
+++ b/kernel/fs/btrfs/disk-io.h
@@ -21,11 +21,10 @@
#define BTRFS_BDEV_BLOCKSIZE (4096)
enum btrfs_wq_endio_type {
- BTRFS_WQ_ENDIO_DATA = 0,
- BTRFS_WQ_ENDIO_METADATA = 1,
- BTRFS_WQ_ENDIO_FREE_SPACE = 2,
- BTRFS_WQ_ENDIO_RAID56 = 3,
- BTRFS_WQ_ENDIO_DIO_REPAIR = 4,
+ BTRFS_WQ_ENDIO_DATA,
+ BTRFS_WQ_ENDIO_METADATA,
+ BTRFS_WQ_ENDIO_FREE_SPACE,
+ BTRFS_WQ_ENDIO_RAID56,
};
static inline u64 btrfs_sb_offset(int mirror)
@@ -39,54 +38,52 @@
struct btrfs_device;
struct btrfs_fs_devices;
-int btrfs_verify_level_key(struct btrfs_fs_info *fs_info,
- struct extent_buffer *eb, int level,
+void btrfs_check_leaked_roots(struct btrfs_fs_info *fs_info);
+void btrfs_init_fs_info(struct btrfs_fs_info *fs_info);
+int btrfs_verify_level_key(struct extent_buffer *eb, int level,
struct btrfs_key *first_key, u64 parent_transid);
struct extent_buffer *read_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr,
u64 parent_transid, int level,
struct btrfs_key *first_key);
void readahead_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr);
-int reada_tree_block_flagged(struct btrfs_fs_info *fs_info, u64 bytenr,
- int mirror_num, struct extent_buffer **eb);
struct extent_buffer *btrfs_find_create_tree_block(
struct btrfs_fs_info *fs_info,
u64 bytenr);
-void clean_tree_block(struct btrfs_fs_info *fs_info, struct extent_buffer *buf);
-int open_ctree(struct super_block *sb,
+void btrfs_clean_tree_block(struct extent_buffer *buf);
+int __cold open_ctree(struct super_block *sb,
struct btrfs_fs_devices *fs_devices,
char *options);
-void close_ctree(struct btrfs_fs_info *fs_info);
+void __cold close_ctree(struct btrfs_fs_info *fs_info);
int write_all_supers(struct btrfs_fs_info *fs_info, int max_mirrors);
-struct buffer_head *btrfs_read_dev_super(struct block_device *bdev);
-int btrfs_read_dev_one_super(struct block_device *bdev, int copy_num,
- struct buffer_head **bh_ret);
+struct btrfs_super_block *btrfs_read_dev_super(struct block_device *bdev);
+struct btrfs_super_block *btrfs_read_dev_one_super(struct block_device *bdev,
+ int copy_num);
int btrfs_commit_super(struct btrfs_fs_info *fs_info);
-struct btrfs_root *btrfs_read_fs_root(struct btrfs_root *tree_root,
- struct btrfs_key *location);
-int btrfs_init_fs_root(struct btrfs_root *root);
-struct btrfs_root *btrfs_lookup_fs_root(struct btrfs_fs_info *fs_info,
- u64 root_id);
+struct btrfs_root *btrfs_read_tree_root(struct btrfs_root *tree_root,
+ struct btrfs_key *key);
int btrfs_insert_fs_root(struct btrfs_fs_info *fs_info,
struct btrfs_root *root);
void btrfs_free_fs_roots(struct btrfs_fs_info *fs_info);
struct btrfs_root *btrfs_get_fs_root(struct btrfs_fs_info *fs_info,
- struct btrfs_key *key,
- bool check_ref);
-static inline struct btrfs_root *
-btrfs_read_fs_root_no_name(struct btrfs_fs_info *fs_info,
- struct btrfs_key *location)
-{
- return btrfs_get_fs_root(fs_info, location, true);
-}
+ u64 objectid, bool check_ref);
+struct btrfs_root *btrfs_get_new_fs_root(struct btrfs_fs_info *fs_info,
+ u64 objectid, dev_t anon_dev);
+struct btrfs_root *btrfs_get_fs_root_commit_root(struct btrfs_fs_info *fs_info,
+ struct btrfs_path *path,
+ u64 objectid);
+void btrfs_free_fs_info(struct btrfs_fs_info *fs_info);
int btrfs_cleanup_fs_roots(struct btrfs_fs_info *fs_info);
void btrfs_btree_balance_dirty(struct btrfs_fs_info *fs_info);
void btrfs_btree_balance_dirty_nodelay(struct btrfs_fs_info *fs_info);
void btrfs_drop_and_free_fs_root(struct btrfs_fs_info *fs_info,
struct btrfs_root *root);
-void btrfs_free_fs_root(struct btrfs_root *root);
-
+int btrfs_validate_metadata_buffer(struct btrfs_io_bio *io_bio, u64 phy_offset,
+ struct page *page, u64 start, u64 end,
+ int mirror);
+blk_status_t btrfs_submit_metadata_bio(struct inode *inode, struct bio *bio,
+ int mirror_num, unsigned long bio_flags);
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
struct btrfs_root *btrfs_alloc_dummy_root(struct btrfs_fs_info *fs_info);
#endif
@@ -98,26 +95,21 @@
* If you want to ensure the whole tree is safe, you should use
* fs_info->subvol_srcu
*/
-static inline struct btrfs_root *btrfs_grab_fs_root(struct btrfs_root *root)
+static inline struct btrfs_root *btrfs_grab_root(struct btrfs_root *root)
{
+ if (!root)
+ return NULL;
if (refcount_inc_not_zero(&root->refs))
return root;
return NULL;
}
-static inline void btrfs_put_fs_root(struct btrfs_root *root)
-{
- if (refcount_dec_and_test(&root->refs))
- kfree(root);
-}
-
+void btrfs_put_root(struct btrfs_root *root);
void btrfs_mark_buffer_dirty(struct extent_buffer *buf);
int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid,
int atomic);
int btrfs_read_buffer(struct extent_buffer *buf, u64 parent_transid, int level,
struct btrfs_key *first_key);
-u32 btrfs_csum_data(const char *data, u32 seed, size_t len);
-void btrfs_csum_final(u32 crc, u8 *result);
blk_status_t btrfs_bio_wq_end_io(struct btrfs_fs_info *info, struct bio *bio,
enum btrfs_wq_endio_type metadata);
blk_status_t btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct bio *bio,
@@ -126,8 +118,6 @@
extent_submit_bio_start_t *submit_bio_start);
blk_status_t btrfs_submit_bio_done(void *private_data, struct bio *bio,
int mirror_num);
-int btrfs_write_tree_block(struct extent_buffer *buf);
-void btrfs_wait_tree_block_writeback(struct extent_buffer *buf);
int btrfs_init_log_root_tree(struct btrfs_trans_handle *trans,
struct btrfs_fs_info *fs_info);
int btrfs_add_log_tree(struct btrfs_trans_handle *trans,
@@ -137,14 +127,12 @@
void btrfs_cleanup_one_transaction(struct btrfs_transaction *trans,
struct btrfs_fs_info *fs_info);
struct btrfs_root *btrfs_create_tree(struct btrfs_trans_handle *trans,
- struct btrfs_fs_info *fs_info,
u64 objectid);
int btree_lock_page_hook(struct page *page, void *data,
void (*flush_fn)(void *));
-struct extent_map *btree_get_extent(struct btrfs_inode *inode,
- struct page *page, size_t pg_offset, u64 start, u64 len,
- int create);
int btrfs_get_num_tolerated_disk_barrier_failures(u64 flags);
+int btrfs_find_free_objectid(struct btrfs_root *root, u64 *objectid);
+int btrfs_find_highest_objectid(struct btrfs_root *root, u64 *objectid);
int __init btrfs_end_io_wq_init(void);
void __cold btrfs_end_io_wq_exit(void);
--
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