On 9/26/23 9:23 AM, Zorro Lang wrote: > On Mon, Sep 25, 2023 at 12:21:35AM -0600, Jens Axboe wrote: >> overlayfs copies the kiocb flags when it sets up a new kiocb to handle >> a write, but it doesn't properly support dealing with the deferred >> caller completions of the kiocb. This means it doesn't get the final >> write completion value, and hence will complete the write with '0' as >> the result. >> >> We could support the caller completions in overlayfs, but for now let's >> just disable them in the generated write kiocb. >> >> Reported-by: Zorro Lang <zlang@xxxxxxxxxx> >> Link: https://lore.kernel.org/io-uring/20230924142754.ejwsjen5pvyc32l4@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/ >> Fixes: 8c052fb3002e ("iomap: support IOCB_DIO_CALLER_COMP") >> Signed-off-by: Jens Axboe <axboe@xxxxxxxxx> >> >> --- > > Thanks Jens, the fstests generic/617 works on latest linux kernel with > this patch now. Excellent, thanks for re-testing. -- Jens Axboe
