Re: [PATCH v3 00/20] block: remove aio_disable_external() API

[Stefan Hajnoczi <stefanha@redhat.com>]

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On Thu, Apr 20, 2023 at 03:39:59PM +0200, Philippe Mathieu-Daudé wrote:
> Hi Stefan,
> 
> On 20/4/23 13:37, Stefan Hajnoczi wrote:
> > v3:
> > - Resend full patch series. v2 was sent in the middle of a git rebase and was
> >    missing patches. [Eric]
> > - Apply Reviewed-by tags.
> 
> > Based-on: 087bc644b7634436ca9d52fe58ba9234e2bef026 (kevin/block-next)
> 
> It seems kevin/block-next got rebased and doesn't contain 087bc644b76.
> 
> Based on 3d1ba50c4b ("vmdk: make vmdk_is_cid_valid a coroutine_fn")
> I get:
> 
> Applying: hw/qdev: introduce qdev_is_realized() helper
> Applying: virtio-scsi: avoid race between unplug and transport event
> Applying: virtio-scsi: stop using aio_disable_external() during unplug
> Applying: block/export: only acquire AioContext once for
> vhost_user_server_stop()
> error: patch failed: util/vhost-user-server.c:346
> error: util/vhost-user-server.c: patch does not apply
> Patch failed at 0004 block/export: only acquire AioContext once for
> vhost_user_server_stop()
> 
> Hmm patch #4 is already merged as commit 2957dc40a2, let's skip it:
> 
> $ git am --skip
> Applying: util/vhost-user-server: rename refcount to in_flight counter
> Applying: block/export: wait for vhost-user-blk requests when draining
> Applying: block/export: stop using is_external in vhost-user-blk server
> Applying: hw/xen: do not use aio_set_fd_handler(is_external=true) in
> xen_xenstore
> Applying: block: add blk_in_drain() API
> Applying: block: drain from main loop thread in bdrv_co_yield_to_drain()
> Applying: xen-block: implement BlockDevOps->drained_begin()
> Applying: hw/xen: do not set is_external=true on evtchn fds
> Applying: block/export: rewrite vduse-blk drain code
> Applying: block/export: don't require AioContext lock around
> blk_exp_ref/unref()
> Applying: block/fuse: do not set is_external=true on FUSE fd
> Applying: virtio: make it possible to detach host notifier from any thread
> Applying: virtio-blk: implement BlockDevOps->drained_begin()
> Applying: virtio-scsi: implement BlockDevOps->drained_begin()
> Applying: virtio: do not set is_external=true on host notifiers
> Applying: aio: remove aio_disable_external() API
> error: patch failed: util/fdmon-epoll.c:131
> error: util/fdmon-epoll.c: patch does not apply
> Patch failed at 0020 aio: remove aio_disable_external() API
> 
> Now this clashes with commit e62da98527 ("aio-posix: fix race between epoll
> upgrade and aio_set_fd_handler()").
> 
> Indeed reverting both e62da98527 / 2957dc40a2, I can apply your
> series.

Thanks, I will rebase to origin/master now to make this patch series
easier to merge.

Stefan

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