diff options
Diffstat (limited to 'fs/btrfs/inode-item.h')
| -rw-r--r-- | fs/btrfs/inode-item.h | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/fs/btrfs/inode-item.h b/fs/btrfs/inode-item.h index ede43b6c6559..6d9f5ad20646 100644 --- a/fs/btrfs/inode-item.h +++ b/fs/btrfs/inode-item.h @@ -4,14 +4,17 @@ #define BTRFS_INODE_ITEM_H #include <linux/types.h> +#include <linux/crc32c.h> +struct fscrypt_str; +struct extent_buffer; struct btrfs_trans_handle; struct btrfs_root; struct btrfs_path; struct btrfs_key; struct btrfs_inode_extref; struct btrfs_inode; -struct extent_buffer; +struct btrfs_truncate_control; /* * Return this if we need to call truncate_block for the last bit of the @@ -76,6 +79,12 @@ static inline void btrfs_inode_split_flags(u64 inode_item_flags, *ro_flags = (u32)(inode_item_flags >> 32); } +/* Figure the key offset of an extended inode ref. */ +static inline u64 btrfs_extref_hash(u64 parent_objectid, const char *name, int len) +{ + return (u64)crc32c(parent_objectid, name, len); +} + int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_truncate_control *control); @@ -92,19 +101,16 @@ int btrfs_lookup_inode(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, struct btrfs_key *location, int mod); -struct btrfs_inode_extref *btrfs_lookup_inode_extref( - struct btrfs_trans_handle *trans, - struct btrfs_root *root, - struct btrfs_path *path, - const struct fscrypt_str *name, - u64 inode_objectid, u64 ref_objectid, int ins_len, - int cow); +struct btrfs_inode_extref *btrfs_lookup_inode_extref(struct btrfs_root *root, + struct btrfs_path *path, + const struct fscrypt_str *name, + u64 inode_objectid, u64 ref_objectid); -struct btrfs_inode_ref *btrfs_find_name_in_backref(struct extent_buffer *leaf, +struct btrfs_inode_ref *btrfs_find_name_in_backref(const struct extent_buffer *leaf, int slot, const struct fscrypt_str *name); struct btrfs_inode_extref *btrfs_find_name_in_ext_backref( - struct extent_buffer *leaf, int slot, u64 ref_objectid, + const struct extent_buffer *leaf, int slot, u64 ref_objectid, const struct fscrypt_str *name); #endif |