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Lunev" , "Michael S. Tsirkin" Cc: Sam Li , Damien Le Moal , Niklas Cassel , qemu-block@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH v6 00/15] block: fix the zone write granularity and the zone append limit Date: Mon, 21 Sep 2026 16:28:02 +0200 Message-ID: <20260921142819.2916043-1-cassel@kernel.org> X-Mailer: git-send-email 2.55.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2600:3c04:e001:324:0:1991:8:25; envelope-from=cassel@kernel.org; helo=tor.source.kernel.org 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, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development 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 Hello Stefan, Kevin, and everyone else, This series fixes how QEMU reports and enforces the two constraints that a zoned device places on a write to a sequential zone: the write granularity, and the largest zone append that it accepts. It also fixes two bugs in the zone append emulation in file-posix, one of which a guest can reach. Most of it is preparation for Sam Li's zoned qcow2 series. The first two patches are taken directly from there, as they are unrelated to qcow2. Changes since v5: -Picked up Stefan's Reviewed-by tags that he gave when reviewing v4. Patches that have changed significantly since v4 have had tags dropped (i.e. they will have neither Damien's nor Stefan's Reviewed-by tags). Niklas Cassel (13): block: add a helper for the index of the zone an offset falls in block: add a helper to check if a zone is conventional hw/block: derive the zone write granularity from the block sizes virtio-blk: check the write granularity of writes to sequential zones hw/block: reject a zoned device that the block sizes cannot address block: reject zone appends that are not a multiple of the sector size block: reject a zone append that is larger than a zone file-posix: remove the zone append write granularity check virtio-blk: add a max-append-sectors property block: remove BlockLimits.max_append_sectors file-posix: reject a zone append past the device capacity file-posix: reject a zone append to a full or conventional zone block: do not use CoroutineIOCompletion to hold a return value Sam Li (2): block: widen BlockLimits.zone_size to uint64_t virtio-blk: do not merge requests across a zone boundary block/block-backend.c | 11 +++ block/file-posix.c | 59 +++++++----- block/io.c | 79 ++++++++++++---- hw/block/block.c | 68 ++++++++++++++ hw/block/virtio-blk.c | 146 ++++++++++++++++++++++++++---- include/block/block-io.h | 14 +++ include/block/block_int-common.h | 19 +++- include/hw/block/block.h | 14 +++ include/hw/virtio/virtio-blk.h | 1 + include/system/block-backend-io.h | 1 + 10 files changed, 349 insertions(+), 63 deletions(-) base-commit: 3b5d71cc3652fa7f5ecc449f05dae3ead2b718d7 -- 2.55.0