linux/fs/bcachefs/str_hash.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _BCACHEFS_STR_HASH_H
#define _BCACHEFS_STR_HASH_H

#include "btree_iter.h"
#include "btree_update.h"
#include "checksum.h"
#include "error.h"
#include "inode.h"
#include "siphash.h"
#include "subvolume.h"
#include "super.h"

#include <linux/crc32c.h>
#include <crypto/hash.h>
#include <crypto/sha2.h>

static inline enum bch_str_hash_type
bch2_str_hash_opt_to_type(struct bch_fs *c, enum bch_str_hash_opts opt)
{ … }

struct bch_hash_info { … };

static inline struct bch_hash_info
bch2_hash_info_init(struct bch_fs *c, const struct bch_inode_unpacked *bi)
{ … }

struct bch_str_hash_ctx { … };

static inline void bch2_str_hash_init(struct bch_str_hash_ctx *ctx,
				     const struct bch_hash_info *info)
{ … }

static inline void bch2_str_hash_update(struct bch_str_hash_ctx *ctx,
				       const struct bch_hash_info *info,
				       const void *data, size_t len)
{ … }

static inline u64 bch2_str_hash_end(struct bch_str_hash_ctx *ctx,
				   const struct bch_hash_info *info)
{ … }

struct bch_hash_desc { … };

static inline bool is_visible_key(struct bch_hash_desc desc, subvol_inum inum, struct bkey_s_c k)
{ … }

static __always_inline struct bkey_s_c
bch2_hash_lookup_in_snapshot(struct btree_trans *trans,
		 struct btree_iter *iter,
		 const struct bch_hash_desc desc,
		 const struct bch_hash_info *info,
		 subvol_inum inum, const void *key,
		 enum btree_iter_update_trigger_flags flags,
		 u32 snapshot)
{ … }

static __always_inline struct bkey_s_c
bch2_hash_lookup(struct btree_trans *trans,
		 struct btree_iter *iter,
		 const struct bch_hash_desc desc,
		 const struct bch_hash_info *info,
		 subvol_inum inum, const void *key,
		 enum btree_iter_update_trigger_flags flags)
{ … }

static __always_inline int
bch2_hash_hole(struct btree_trans *trans,
	       struct btree_iter *iter,
	       const struct bch_hash_desc desc,
	       const struct bch_hash_info *info,
	       subvol_inum inum, const void *key)
{ … }

static __always_inline
int bch2_hash_needs_whiteout(struct btree_trans *trans,
			     const struct bch_hash_desc desc,
			     const struct bch_hash_info *info,
			     struct btree_iter *start)
{ … }

static __always_inline
int bch2_hash_set_in_snapshot(struct btree_trans *trans,
			   const struct bch_hash_desc desc,
			   const struct bch_hash_info *info,
			   subvol_inum inum, u32 snapshot,
			   struct bkey_i *insert,
			   enum btree_iter_update_trigger_flags flags)
{ … }

static __always_inline
int bch2_hash_set(struct btree_trans *trans,
		  const struct bch_hash_desc desc,
		  const struct bch_hash_info *info,
		  subvol_inum inum,
		  struct bkey_i *insert,
		  enum btree_iter_update_trigger_flags flags)
{ … }

static __always_inline
int bch2_hash_delete_at(struct btree_trans *trans,
			const struct bch_hash_desc desc,
			const struct bch_hash_info *info,
			struct btree_iter *iter,
			enum btree_iter_update_trigger_flags flags)
{ … }

static __always_inline
int bch2_hash_delete(struct btree_trans *trans,
		     const struct bch_hash_desc desc,
		     const struct bch_hash_info *info,
		     subvol_inum inum, const void *key)
{ … }

#endif /* _BCACHEFS_STR_HASH_H */