ref: e6435a48f54c9f84eec99bb5f56c327ae59b9c1f
dir: /src/ext4_trans.c/
/* * Copyright (c) 2015 Grzegorz Kostka (kostka.grzegorz@gmail.com) * Copyright (c) 2015 Kaho Ng (ngkaho1234@gmail.com) * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * - The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** @addtogroup lwext4 * @{ */ /** * @file ext4_trans.c * @brief Ext4 transaction buffer operations. */ #include "ext4_config.h" #include "ext4_types.h" #include "ext4_misc.h" #include "ext4_errno.h" #include "ext4_debug.h" #include "ext4_fs.h" #include "ext4_journal.h" int ext4_trans_set_block_dirty(struct ext4_buf *buf) { int r = EOK; #if CONFIG_JOURNALING_ENABLE struct ext4_fs *fs = buf->bc->bdev->fs; struct ext4_block block = { .lb_id = buf->lba, .data = buf->data, .buf = buf }; if (fs->jbd_journal && fs->curr_trans) { struct jbd_trans *trans = fs->curr_trans; return jbd_trans_set_block_dirty(trans, &block); } #endif ext4_bcache_set_dirty(buf); return r; } int ext4_trans_block_get_noread(struct ext4_blockdev *bdev, struct ext4_block *b, uint64_t lba) { int r = ext4_block_get_noread(bdev, b, lba); if (r != EOK) return r; return r; } int ext4_trans_block_get(struct ext4_blockdev *bdev, struct ext4_block *b, uint64_t lba) { int r = ext4_block_get(bdev, b, lba); if (r != EOK) return r; return r; } int ext4_trans_try_revoke_block(struct ext4_blockdev *bdev __unused, uint64_t lba __unused) { int r = EOK; #if CONFIG_JOURNALING_ENABLE struct ext4_fs *fs = bdev->fs; if (fs->jbd_journal && fs->curr_trans) { struct jbd_trans *trans = fs->curr_trans; r = jbd_trans_try_revoke_block(trans, lba); } else if (fs->jbd_journal) { r = ext4_block_flush_lba(fs->bdev, lba); } #endif return r; } /** * @} */