1/*
2 * Copyright (c) 2015 Grzegorz Kostka (kostka.grzegorz@gmail.com)
3 * Copyright (c) 2015 Kaho Ng (ngkaho1234@gmail.com)
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * - Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * - Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * - The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30/** @addtogroup lwext4
31 * @{
32 */
33/**
34 * @file ext4_trans.c
35 * @brief Ext4 transaction buffer operations.
36 */
37
38#include <ext4_config.h>
39#include <ext4_types.h>
40#include <ext4_misc.h>
41#include <ext4_errno.h>
42#include <ext4_debug.h>
43
44#include <ext4_fs.h>
45#include <ext4_journal.h>
46
47int ext4_trans_set_block_dirty(struct ext4_buf *buf)
48{
49 int r = EOK;
50#if CONFIG_JOURNALING_ENABLE
51 struct ext4_fs *fs = buf->bc->bdev->fs;
52 struct ext4_block block = {
53 .lb_id = buf->lba,
54 .data = buf->data,
55 .buf = buf
56 };
57
58 if (fs->jbd_journal && fs->curr_trans) {
59 struct jbd_trans *trans = fs->curr_trans;
60 return jbd_trans_set_block_dirty(trans, block: &block);
61 }
62#endif
63 ext4_bcache_set_dirty(buf);
64 return r;
65}
66
67int ext4_trans_block_get_noread(struct ext4_blockdev *bdev,
68 struct ext4_block *b,
69 uint64_t lba)
70{
71 int r = ext4_block_get_noread(bdev, b, lba);
72 if (r != EOK)
73 return r;
74
75 return r;
76}
77
78int ext4_trans_block_get(struct ext4_blockdev *bdev,
79 struct ext4_block *b,
80 uint64_t lba)
81{
82 int r = ext4_block_get(bdev, b, lba);
83 if (r != EOK)
84 return r;
85
86 return r;
87}
88
89int ext4_trans_try_revoke_block(struct ext4_blockdev *bdev __unused,
90 uint64_t lba __unused)
91{
92 int r = EOK;
93#if CONFIG_JOURNALING_ENABLE
94 struct ext4_fs *fs = bdev->fs;
95 if (fs->jbd_journal && fs->curr_trans) {
96 struct jbd_trans *trans = fs->curr_trans;
97 r = jbd_trans_try_revoke_block(trans, lba);
98 } else if (fs->jbd_journal) {
99 r = ext4_block_flush_lba(bdev: fs->bdev, lba);
100 }
101#endif
102 return r;
103}
104
105/**
106 * @}
107 */
108