diff options
Diffstat (limited to 'fs/btrfs/btrfs_inode.h')
| -rw-r--r-- | fs/btrfs/btrfs_inode.h | 161 |
1 files changed, 137 insertions, 24 deletions
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h index 54c2ccb36b61..195c09e20609 100644 --- a/fs/btrfs/btrfs_inode.h +++ b/fs/btrfs/btrfs_inode.h @@ -411,29 +411,142 @@ static inline void btrfs_inode_split_flags(u64 inode_item_flags, #define CSUM_FMT "0x%*phN" #define CSUM_FMT_VALUE(size, bytes) size, bytes -static inline void btrfs_print_data_csum_error(struct btrfs_inode *inode, - u64 logical_start, u8 *csum, u8 *csum_expected, int mirror_num) -{ - struct btrfs_root *root = inode->root; - const u32 csum_size = root->fs_info->csum_size; - - /* Output minus objectid, which is more meaningful */ - if (root->root_key.objectid >= BTRFS_LAST_FREE_OBJECTID) - btrfs_warn_rl(root->fs_info, -"csum failed root %lld ino %lld off %llu csum " CSUM_FMT " expected csum " CSUM_FMT " mirror %d", - root->root_key.objectid, btrfs_ino(inode), - logical_start, - CSUM_FMT_VALUE(csum_size, csum), - CSUM_FMT_VALUE(csum_size, csum_expected), - mirror_num); - else - btrfs_warn_rl(root->fs_info, -"csum failed root %llu ino %llu off %llu csum " CSUM_FMT " expected csum " CSUM_FMT " mirror %d", - root->root_key.objectid, btrfs_ino(inode), - logical_start, - CSUM_FMT_VALUE(csum_size, csum), - CSUM_FMT_VALUE(csum_size, csum_expected), - mirror_num); -} +void btrfs_submit_data_write_bio(struct btrfs_inode *inode, struct bio *bio, int mirror_num); +void btrfs_submit_data_read_bio(struct btrfs_inode *inode, struct bio *bio, + int mirror_num, enum btrfs_compression_type compress_type); +void btrfs_submit_dio_repair_bio(struct btrfs_inode *inode, struct bio *bio, int mirror_num); +blk_status_t btrfs_submit_bio_start(struct btrfs_inode *inode, struct bio *bio); +blk_status_t btrfs_submit_bio_start_direct_io(struct btrfs_inode *inode, + struct bio *bio, + u64 dio_file_offset); +int btrfs_check_sector_csum(struct btrfs_fs_info *fs_info, struct page *page, + u32 pgoff, u8 *csum, const u8 * const csum_expected); +int btrfs_check_data_csum(struct btrfs_inode *inode, struct btrfs_bio *bbio, + u32 bio_offset, struct page *page, u32 pgoff); +unsigned int btrfs_verify_data_csum(struct btrfs_bio *bbio, + u32 bio_offset, struct page *page, + u64 start, u64 end); +noinline int can_nocow_extent(struct inode *inode, u64 offset, u64 *len, + u64 *orig_start, u64 *orig_block_len, + u64 *ram_bytes, bool nowait, bool strict); + +void __btrfs_del_delalloc_inode(struct btrfs_root *root, struct btrfs_inode *inode); +struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry); +int btrfs_set_inode_index(struct btrfs_inode *dir, u64 *index); +int btrfs_unlink_inode(struct btrfs_trans_handle *trans, + struct btrfs_inode *dir, struct btrfs_inode *inode, + const struct fscrypt_str *name); +int btrfs_add_link(struct btrfs_trans_handle *trans, + struct btrfs_inode *parent_inode, struct btrfs_inode *inode, + const struct fscrypt_str *name, int add_backref, u64 index); +int btrfs_delete_subvolume(struct btrfs_inode *dir, struct dentry *dentry); +int btrfs_truncate_block(struct btrfs_inode *inode, loff_t from, loff_t len, + int front); + +int btrfs_start_delalloc_snapshot(struct btrfs_root *root, bool in_reclaim_context); +int btrfs_start_delalloc_roots(struct btrfs_fs_info *fs_info, long nr, + bool in_reclaim_context); +int btrfs_set_extent_delalloc(struct btrfs_inode *inode, u64 start, u64 end, + unsigned int extra_bits, + struct extent_state **cached_state); + +struct btrfs_new_inode_args { + /* Input */ + struct inode *dir; + struct dentry *dentry; + struct inode *inode; + bool orphan; + bool subvol; + + /* Output from btrfs_new_inode_prepare(), input to btrfs_create_new_inode(). */ + struct posix_acl *default_acl; + struct posix_acl *acl; + struct fscrypt_name fname; +}; + +int btrfs_new_inode_prepare(struct btrfs_new_inode_args *args, + unsigned int *trans_num_items); +int btrfs_create_new_inode(struct btrfs_trans_handle *trans, + struct btrfs_new_inode_args *args); +void btrfs_new_inode_args_destroy(struct btrfs_new_inode_args *args); +struct inode *btrfs_new_subvol_inode(struct user_namespace *mnt_userns, + struct inode *dir); + void btrfs_set_delalloc_extent(struct btrfs_inode *inode, struct extent_state *state, + u32 bits); +void btrfs_clear_delalloc_extent(struct btrfs_inode *inode, + struct extent_state *state, u32 bits); +void btrfs_merge_delalloc_extent(struct btrfs_inode *inode, struct extent_state *new, + struct extent_state *other); +void btrfs_split_delalloc_extent(struct btrfs_inode *inode, + struct extent_state *orig, u64 split); +void btrfs_set_range_writeback(struct btrfs_inode *inode, u64 start, u64 end); +vm_fault_t btrfs_page_mkwrite(struct vm_fault *vmf); +void btrfs_evict_inode(struct inode *inode); +struct inode *btrfs_alloc_inode(struct super_block *sb); +void btrfs_destroy_inode(struct inode *inode); +void btrfs_free_inode(struct inode *inode); +int btrfs_drop_inode(struct inode *inode); +int __init btrfs_init_cachep(void); +void __cold btrfs_destroy_cachep(void); +struct inode *btrfs_iget_path(struct super_block *s, u64 ino, + struct btrfs_root *root, struct btrfs_path *path); +struct inode *btrfs_iget(struct super_block *s, u64 ino, struct btrfs_root *root); +struct extent_map *btrfs_get_extent(struct btrfs_inode *inode, + struct page *page, size_t pg_offset, + u64 start, u64 end); +int btrfs_update_inode(struct btrfs_trans_handle *trans, + struct btrfs_root *root, struct btrfs_inode *inode); +int btrfs_update_inode_fallback(struct btrfs_trans_handle *trans, + struct btrfs_root *root, struct btrfs_inode *inode); +int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct btrfs_inode *inode); +int btrfs_orphan_cleanup(struct btrfs_root *root); +int btrfs_cont_expand(struct btrfs_inode *inode, loff_t oldsize, loff_t size); +void btrfs_add_delayed_iput(struct btrfs_inode *inode); +void btrfs_run_delayed_iputs(struct btrfs_fs_info *fs_info); +int btrfs_wait_on_delayed_iputs(struct btrfs_fs_info *fs_info); +int btrfs_prealloc_file_range(struct inode *inode, int mode, + u64 start, u64 num_bytes, u64 min_size, + loff_t actual_len, u64 *alloc_hint); +int btrfs_prealloc_file_range_trans(struct inode *inode, + struct btrfs_trans_handle *trans, int mode, + u64 start, u64 num_bytes, u64 min_size, + loff_t actual_len, u64 *alloc_hint); +int btrfs_run_delalloc_range(struct btrfs_inode *inode, struct page *locked_page, + u64 start, u64 end, int *page_started, + unsigned long *nr_written, struct writeback_control *wbc); +int btrfs_writepage_cow_fixup(struct page *page); +void btrfs_writepage_endio_finish_ordered(struct btrfs_inode *inode, + struct page *page, u64 start, + u64 end, bool uptodate); +int btrfs_encoded_io_compression_from_extent(struct btrfs_fs_info *fs_info, + int compress_type); +int btrfs_encoded_read_regular_fill_pages(struct btrfs_inode *inode, + u64 file_offset, u64 disk_bytenr, + u64 disk_io_size, + struct page **pages); +ssize_t btrfs_encoded_read(struct kiocb *iocb, struct iov_iter *iter, + struct btrfs_ioctl_encoded_io_args *encoded); +ssize_t btrfs_do_encoded_write(struct kiocb *iocb, struct iov_iter *from, + const struct btrfs_ioctl_encoded_io_args *encoded); + +ssize_t btrfs_dio_read(struct kiocb *iocb, struct iov_iter *iter, + size_t done_before); +struct iomap_dio *btrfs_dio_write(struct kiocb *iocb, struct iov_iter *iter, + size_t done_before); + +extern const struct dentry_operations btrfs_dentry_operations; + +/* Inode locking type flags, by default the exclusive lock is taken. */ +enum btrfs_ilock_type { + ENUM_BIT(BTRFS_ILOCK_SHARED), + ENUM_BIT(BTRFS_ILOCK_TRY), + ENUM_BIT(BTRFS_ILOCK_MMAP), +}; + +int btrfs_inode_lock(struct btrfs_inode *inode, unsigned int ilock_flags); +void btrfs_inode_unlock(struct btrfs_inode *inode, unsigned int ilock_flags); +void btrfs_update_inode_bytes(struct btrfs_inode *inode, const u64 add_bytes, + const u64 del_bytes); +void btrfs_assert_inode_range_clean(struct btrfs_inode *inode, u64 start, u64 end); #endif |