回覆: f2fs F2FS_IOC_SHUTDOWN hang issue

[Light Hsieh (謝明燈)]

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>

The case I encounter is f2fs_ic_shutdown with arg  F2FS_GOING_DOWN_FULLSYNC, not  F2FS_GOING_DOWN_NOSYNC.

Or you are meaning that: besides the kernel patch, I need to change the invoked F2FS_IOC_SHUTDOWN to use arg F2FS_GOING_DOWN_NOSYNC?