2 * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
5 * Copyright (c) 2012 Martin Sucha
6 * Copyright (c) 2012 Frantisek Princ
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * - Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * - Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * - The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 /** @addtogroup lwext4
38 * @brief More complex filesystem functions.
40 #ifndef EXT4_EXTENT_H_
41 #define EXT4_EXTENT_H_
47 #include <ext4_config.h>
48 #include <ext4_types.h>
49 #include <ext4_inode.h>
51 void ext4_extent_tree_init(struct ext4_inode_ref *inode_ref);
54 int ext4_extent_get_blocks(struct ext4_inode_ref *inode_ref, ext4_lblk_t iblock,
55 uint32_t max_blocks, ext4_fsblk_t *result, bool create,
56 uint32_t *blocks_count);
59 /**@brief Release all data blocks starting from specified logical block.
60 * @param inode_ref I-node to release blocks from
61 * @param iblock_from First logical block to release
62 * @return Error code */
63 int ext4_extent_remove_space(struct ext4_inode_ref *inode_ref, ext4_lblk_t from,
71 #endif /* EXT4_EXTENT_H_ */