Commit 2885fd63 authored by Josef Bacik's avatar Josef Bacik Committed by David Sterba
Browse files

btrfs: move inode prototypes to btrfs_inode.h 



I initially wanted to make a new header file for this, but these
prototypes do naturally fit into btrfs_inode.h.  If we want to extract
vfs from pure btrfs code in the future we may need to split this up, but
btrfs_inode embeds the vfs_inode, so it makes sense to put the
prototypes in this header for now.

Reviewed-by: default avatarJohannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: default avatarJosef Bacik <josef@toxicpanda.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 083bd7e5

fs/btrfs/btrfs_inode.h

+136 −0
Original line number Diff line number Diff line
@@ -410,4 +410,140 @@ static inline void btrfs_inode_split_flags(u64 inode_item_flags, 
/* Array of bytes with variable length, hexadecimal format 0x1234 */

#define CSUM_FMT				"0x%*phN"

#define CSUM_FMT_VALUE(size, bytes)		size, bytes



void btrfs_submit_data_write_bio(struct inode *inode, struct bio *bio, int mirror_num);

void btrfs_submit_data_read_bio(struct inode *inode, struct bio *bio,

			int mirror_num, enum btrfs_compression_type compress_type);

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 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);

int btrfs_check_data_csum(struct inode *inode, struct btrfs_bio *bbio,

			  u32 bio_offset, struct page *page, u32 pgoff);

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 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 inode *inode, struct extent_state *state,

			        u32 bits);

void btrfs_clear_delalloc_extent(struct inode *inode,

				 struct extent_state *state, u32 bits);

void btrfs_merge_delalloc_extent(struct inode *inode, struct extent_state *new,

				 struct extent_state *other);

void btrfs_split_delalloc_extent(struct 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 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 inode *inode, unsigned int ilock_flags);

void btrfs_inode_unlock(struct 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

fs/btrfs/ctree.h

+0 −140
Original line number Diff line number Diff line
@@ -764,146 +764,6 @@ int btrfs_inode_set_file_extent_range(struct btrfs_inode *inode, u64 start, 
void btrfs_inode_safe_disk_i_size_write(struct btrfs_inode *inode, u64 new_i_size);

u64 btrfs_file_extent_end(const struct btrfs_path *path);



/* inode.c */

void btrfs_submit_data_write_bio(struct inode *inode, struct bio *bio, int mirror_num);

void btrfs_submit_data_read_bio(struct inode *inode, struct bio *bio,

			int mirror_num, enum btrfs_compression_type compress_type);

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 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);

int btrfs_check_data_csum(struct inode *inode, struct btrfs_bio *bbio,

			  u32 bio_offset, struct page *page, u32 pgoff);

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 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 inode *inode, struct extent_state *state,

			        u32 bits);

void btrfs_clear_delalloc_extent(struct inode *inode,

				 struct extent_state *state, u32 bits);

void btrfs_merge_delalloc_extent(struct inode *inode, struct extent_state *new,

				 struct extent_state *other);

void btrfs_split_delalloc_extent(struct 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 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 inode *inode, unsigned int ilock_flags);

void btrfs_inode_unlock(struct 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);



/* ioctl.c */

long btrfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);

long btrfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);