On 5/21/24 9:49 AM, David Howells wrote: > Fix netfs_perform_write() to set BDP_ASYNC if IOCB_NOWAIT is set rather > than if IOCB_SYNC is not set. It reflects asynchronicity in the sense of > not waiting rather than synchronicity in the sense of not returning until > the op is complete. > > Without this, generic/590 fails on cifs in strict caching mode with a > complaint that one of the writes fails with EAGAIN. The test can be > distilled down to: > > mount -t cifs /my/share /mnt -ostuff > xfs_io -i -c 'falloc 0 8191M -c fsync -f /mnt/file > xfs_io -i -c 'pwrite -b 1M -W 0 8191M' /mnt/file Looks good to me: Reviewed-by: Jens Axboe <axboe@xxxxxxxxx> However, I'll note that BDP_ASYNC is horribly named, it should be BDP_NOWAIT instead. But that's a separate thing, fix looks correct as-is. -- Jens Axboe