Re: [f2fs-dev] [PATCH] f2fs: avoid the deadlock case when stopping discard thread

[Chao Yu]

On 2024/3/20 8:14, Jaegeuk Kim wrote:
> f2fs_ioc_shutdown(F2FS_GOING_DOWN_NOSYNC)  issue_discard_thread
>   - mnt_want_write_file()
>     - sb_start_write(SB_FREEZE_WRITE)
>                                               - sb_start_intwrite(SB_FREEZE_FS);
>   - f2fs_stop_checkpoint(sbi, false,            : waiting
>      STOP_CP_REASON_SHUTDOWN);
>   - f2fs_stop_discard_thread(sbi);
>     - kthread_stop()
>       : waiting
>
>   - mnt_drop_write_file(filp);
>
> Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>

Reviewed-by: Chao Yu <chao@xxxxxxxxxx>

Thanks,