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Mon, 9 Jun 2025 17:00:35 +0000 (UTC) Received: from localhost (unknown [10.2.16.92]) by mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 465CA1956087; Mon, 9 Jun 2025 17:00:35 +0000 (UTC) Date: Mon, 9 Jun 2025 13:00:34 -0400 From: Stefan Hajnoczi To: Hanna Czenczek Cc: qemu-block@nongnu.org, qemu-devel@nongnu.org, Kevin Wolf , Markus Armbruster , Brian Song Subject: Re: [PATCH v2 16/21] block/export: Add multi-threading interface Message-ID: <20250609170034.GI29452@fedora> References: <20250604132813.359438-1-hreitz@redhat.com> <20250604132813.359438-17-hreitz@redhat.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="10kcsb3mv8raIhRA" Content-Disposition: inline In-Reply-To: <20250604132813.359438-17-hreitz@redhat.com> X-Scanned-By: MIMEDefang 3.0 on 10.30.177.15 Received-SPF: pass client-ip=170.10.133.124; envelope-from=stefanha@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org --10kcsb3mv8raIhRA Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Jun 04, 2025 at 03:28:08PM +0200, Hanna Czenczek wrote: > Make BlockExportType.iothread an alternate between a single-thread > variant 'str' and a multi-threading variant '[str]'. >=20 > In contrast to the single-thread setting, the multi-threading setting > will not change the BDS's context (and so is incompatible with the > fixed-iothread setting), but instead just pass a list to the export > driver, with which it can do whatever it wants. >=20 > Currently no export driver supports multi-threading, so they all return > an error when receiving such a list. >=20 > Suggested-by: Kevin Wolf > Signed-off-by: Hanna Czenczek > --- > qapi/block-export.json | 34 +++++++++++++++++--- > include/block/export.h | 12 +++++-- > block/export/export.c | 48 +++++++++++++++++++++++++--- > block/export/fuse.c | 7 ++++ > block/export/vduse-blk.c | 7 ++++ > block/export/vhost-user-blk-server.c | 8 +++++ > nbd/server.c | 6 ++++ > 7 files changed, 111 insertions(+), 11 deletions(-) Reviewed-by: Stefan Hajnoczi --10kcsb3mv8raIhRA Content-Type: application/pgp-signature; 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