2 * Copyright (c) 2015 Grzegorz Kostka (kostka.grzegorz@gmail.com)
3 * Copyright (c) 2015 Kaho Ng (ngkaho1234@gmail.com)
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 /** @addtogroup lwext4
34 * @brief Transaction handle functions
44 #include "ext4_config.h"
45 #include "ext4_types.h"
48 /**@brief Mark a buffer dirty and add it to the current transaction.
50 * @return standard error code*/
51 int ext4_trans_set_block_dirty(struct ext4_buf *buf);
53 /**@brief Block get function (through cache, don't read).
54 * jbd_trans_get_access would be called in order to
55 * get write access to the buffer.
56 * @param bdev block device descriptor
57 * @param b block descriptor
58 * @param lba logical block address
59 * @return standard error code*/
60 int ext4_trans_block_get_noread(struct ext4_blockdev *bdev,
64 /**@brief Block get function (through cache).
65 * jbd_trans_get_access would be called in order to
66 * get write access to the buffer.
67 * @param bdev block device descriptor
68 * @param b block descriptor
69 * @param lba logical block address
70 * @return standard error code*/
71 int ext4_trans_block_get(struct ext4_blockdev *bdev,
75 /**@brief Try to add block to be revoked to the current transaction.
76 * @param bdev block device descriptor
77 * @param lba logical block address
78 * @return standard error code*/
79 int ext4_trans_try_revoke_block(struct ext4_blockdev *bdev,
86 #endif /* EXT4_TRANS_H */