On 2023/08/25 14:37, Lizhi Xu wrote:
> @@ -736,12 +736,12 @@ int f2fs_add_regular_entry(struct inode *dir, const
> struct f2fs_filename *fname,
> f2fs_wait_on_page_writeback(dentry_page, DATA, true, true);
>
> if (inode) {
> - f2fs_down_write(&F2FS_I(inode)->i_sem);
>
On Fri, 25 Aug 2023 18:41:38, c...@kernel.org wrote:
> Can you please check below patch? it has fixed reported issue.
>
> https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git/commit/?h=dev&id=5c13e2388bf3426fd69a89eb46e50469e9624e56
>
> Feedback from syzbot:
>
> https://lore.kernel.or
On 2023/8/25 13:37, Lizhi Xu wrote:
There are two paths:
1. f2fs_add_dentry->f2fs_down_read->f2fs_add_inline_entry->down_write->
up_write->f2fs_up_read
2. f2fs_add_dentry->f2fs_add_regular_entry->down_write->
f2fs_init_inode_metadata->f2fs_down_read->f2fs_up_read->up_write
Force order lo
There are two paths:
1. f2fs_add_dentry->f2fs_down_read->f2fs_add_inline_entry->down_write->
up_write->f2fs_up_read
2. f2fs_add_dentry->f2fs_add_regular_entry->down_write->
f2fs_init_inode_metadata->f2fs_down_read->f2fs_up_read->up_write
Force order lock to read->write.
Signed-off-by: Lizhi
