Re: [PATCH v2 0/7] btrfs: fix io_uring encoded IO cleanup and compat

On Thu, Aug 06, 2026 at 04:50:34PM +0800, Yang Xiuwei wrote:
> 3. SQPOLL / io-wq leave in_compat_syscall() false; export
>    __import_iovec() and pass IO_URING_F_COMPAT for the iovec import.

I retested with a 32-bit process on x86_64. Encoded ioctl and uring
IO both work, including when import runs on iou-wrk.

That claim was wrong for the usual same-process case. io-wq / SQPOLL
threads are created via create_io_thread() while the creator is still
in the compat syscall, so TS_COMPAT is copied into the new task and
import_iovec() already sees compat iovecs.

I will drop 3/7 and 4/7 in v3. The other cleanup patches stay.

Thanks,
Yang Xiuwei