*
* Copyright (C) 2006-2008 Nokia Corporation.
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 51
- * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * SPDX-License-Identifier: GPL-2.0+
*
* Authors: Artem Bityutskiy (Битюцкий Артём)
* Adrian Hunter
key->u32[1] = hash | (UBIFS_XENT_KEY << UBIFS_S_KEY_HASH_BITS);
}
-/**
- * xent_key_init_hash - initialize extended attribute entry key without
- * re-calculating hash function.
- * @c: UBIFS file-system description object
- * @key: key to initialize
- * @inum: host inode number
- * @hash: extended attribute entry name hash
- */
-static inline void xent_key_init_hash(const struct ubifs_info *c,
- union ubifs_key *key, ino_t inum,
- uint32_t hash)
-{
- ubifs_assert(!(hash & ~UBIFS_S_KEY_HASH_MASK));
- key->u32[0] = inum;
- key->u32[1] = hash | (UBIFS_XENT_KEY << UBIFS_S_KEY_HASH_BITS);
-}
-
/**
* xent_key_init_flash - initialize on-flash extended attribute entry key.
* @c: UBIFS file-system description object
}
/**
- * data_key_init_flash - initialize on-flash data key.
+ * highest_data_key - get the highest possible data key for an inode.
* @c: UBIFS file-system description object
- * @k: key to initialize
+ * @key: key to initialize
* @inum: inode number
- * @block: block number
*/
-static inline void data_key_init_flash(const struct ubifs_info *c, void *k,
- ino_t inum, unsigned int block)
+static inline void highest_data_key(const struct ubifs_info *c,
+ union ubifs_key *key, ino_t inum)
{
- union ubifs_key *key = k;
-
- ubifs_assert(!(block & ~UBIFS_S_KEY_BLOCK_MASK));
- key->j32[0] = cpu_to_le32(inum);
- key->j32[1] = cpu_to_le32(block |
- (UBIFS_DATA_KEY << UBIFS_S_KEY_BLOCK_BITS));
- memset(k + 8, 0, UBIFS_MAX_KEY_LEN - 8);
+ data_key_init(c, key, inum, UBIFS_S_KEY_BLOCK_MASK);
}
/**
key->u32[1] = UBIFS_TRUN_KEY << UBIFS_S_KEY_BLOCK_BITS;
}
+/**
+ * invalid_key_init - initialize invalid node key.
+ * @c: UBIFS file-system description object
+ * @key: key to initialize
+ *
+ * This is a helper function which marks a @key object as invalid.
+ */
+static inline void invalid_key_init(const struct ubifs_info *c,
+ union ubifs_key *key)
+{
+ key->u32[0] = 0xDEADBEAF;
+ key->u32[1] = UBIFS_INVALID_KEY;
+}
+
/**
* key_type - get key type.
* @c: UBIFS file-system description object
* @c: UBIFS file-system description object
* @key: the key to get hash from
*/
-static inline int key_hash(const struct ubifs_info *c,
- const union ubifs_key *key)
+static inline uint32_t key_hash(const struct ubifs_info *c,
+ const union ubifs_key *key)
{
return key->u32[1] & UBIFS_S_KEY_HASH_MASK;
}
* @c: UBIFS file-system description object
* @k: the key to get hash from
*/
-static inline int key_hash_flash(const struct ubifs_info *c, const void *k)
+static inline uint32_t key_hash_flash(const struct ubifs_info *c, const void *k)
{
const union ubifs_key *key = k;
return 0;
}
}
+
#endif /* !__UBIFS_KEY_H__ */