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f2fs: do not write any node pages related to orphan inodes

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We should not write node pages when deleting orphan inodes.
In order to do that, we can eaisly set POR_DOING flag earlier before entering
orphan inode routine.

Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2015-08-11 12:45:39 -07:00
parent 4c278394b0
commit 315df8398e
3 changed files with 6 additions and 8 deletions
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4
fs/f2fs/checkpoint.c
View File

@ -497,8 +497,6 @@ int recover_orphan_inodes(struct f2fs_sb_info *sbi)
if (!is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ORPHAN_PRESENT_FLAG))
return 0;
set_sbi_flag(sbi, SBI_POR_DOING);
start_blk = __start_cp_addr(sbi) + 1 + __cp_payload(sbi);
orphan_blocks = __start_sum_addr(sbi) - 1 - __cp_payload(sbi);
@ -514,7 +512,6 @@ int recover_orphan_inodes(struct f2fs_sb_info *sbi)
err = recover_orphan_inode(sbi, ino);
if (err) {
f2fs_put_page(page, 1);
clear_sbi_flag(sbi, SBI_POR_DOING);
return err;
}
}
@ -522,7 +519,6 @@ int recover_orphan_inodes(struct f2fs_sb_info *sbi)
}
/* clear Orphan Flag */
clear_ckpt_flags(F2FS_CKPT(sbi), CP_ORPHAN_PRESENT_FLAG);
clear_sbi_flag(sbi, SBI_POR_DOING);
return 0;
}

4
fs/f2fs/recovery.c
View File

@ -545,14 +545,12 @@ int recover_fsync_data(struct f2fs_sb_info *sbi)
INIT_LIST_HEAD(&inode_list);
/* step #1: find fsynced inode numbers */
set_sbi_flag(sbi, SBI_POR_DOING);
/* prevent checkpoint */
mutex_lock(&sbi->cp_mutex);
blkaddr = NEXT_FREE_BLKADDR(sbi, curseg);
/* step #1: find fsynced inode numbers */
err = find_fsync_dnodes(sbi, &inode_list);
if (err)
goto out;

6
fs/f2fs/super.c
View File

@ -1165,7 +1165,9 @@ try_onemore:
mutex_init(&sbi->writepages);
mutex_init(&sbi->cp_mutex);
init_rwsem(&sbi->node_write);
clear_sbi_flag(sbi, SBI_POR_DOING);
/* disallow all the data/node/meta page writes */
set_sbi_flag(sbi, SBI_POR_DOING);
spin_lock_init(&sbi->stat_lock);
init_rwsem(&sbi->read_io.io_rwsem);
@ -1309,6 +1311,8 @@ try_onemore:
goto free_kobj;
}
}
/* recover_fsync_data() cleared this already */
clear_sbi_flag(sbi, SBI_POR_DOING);
/*
* If filesystem is not mounted as read-only then