| commit | 8b28a0889b9893fca8f05a4fb379621441e5ef22 | [log] [tgz] |
|---|---|---|
| author | Yunlei He <heyunlei@huawei.com> | Fri May 19 15:06:12 2017 +0800 |
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | Thu Jul 13 17:15:11 2017 -0700 |
| tree | 4a0b62dfefea207840d752d91a0958cb35f35306 | |
| parent | d430af2fe9b067378822c00637ea390d673d213c [diff] |
f2fs: fix a bug caused by NULL extent tree
Thread A: Thread B:
-f2fs_remount
-sbi->mount_opt.opt = 0;
<--- -f2fs_iget
-do_read_inode
-f2fs_init_extent_tree
-F2FS_I(inode)->extent_tree is NULL
-default_options && parse_options
-remount return
<--- -f2fs_map_blocks
-f2fs_lookup_extent_tree
-f2fs_bug_on(sbi, !et);
The same problem with f2fs_new_inode.
Signed-off-by: Yunlei He <heyunlei@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>