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Wed, 04 May 2022 00:40:44 -0700 (PDT) Received: from localhost ([139.177.225.233]) by smtp.gmail.com with ESMTPSA id g7-20020a170902d5c700b0015e8d4eb234sm7541000plh.126.2022.05.04.00.40.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 May 2022 00:40:44 -0700 (PDT) From: Xie Yongji To: mst@redhat.com, jasowang@redhat.com, stefanha@redhat.com, sgarzare@redhat.com, kwolf@redhat.com, mreitz@redhat.com, mlureau@redhat.com, jsnow@redhat.com, eblake@redhat.com, Coiby.Xu@gmail.com, hreitz@redhat.com Cc: qemu-block@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH v5 2/8] block-backend: Introduce blk_get_guest_block_size() Date: Wed, 4 May 2022 15:40:45 +0800 Message-Id: <20220504074051.90-3-xieyongji@bytedance.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220504074051.90-1-xieyongji@bytedance.com> References: <20220504074051.90-1-xieyongji@bytedance.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::102a; envelope-from=xieyongji@bytedance.com; helo=mail-pj1-x102a.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Support getting the guest block size for the block backend. It's needed for the following commit. Signed-off-by: Xie Yongji --- block/block-backend.c | 6 ++++++ include/sysemu/block-backend-io.h | 1 + 2 files changed, 7 insertions(+) diff --git a/block/block-backend.c b/block/block-backend.c index 35457a6a1d..1582ff81c9 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -2106,6 +2106,12 @@ void blk_set_guest_block_size(BlockBackend *blk, int align) blk->guest_block_size = align; } +int blk_get_guest_block_size(BlockBackend *blk) +{ + IO_CODE(); + return blk->guest_block_size; +} + void *blk_try_blockalign(BlockBackend *blk, size_t size) { IO_CODE(); diff --git a/include/sysemu/block-backend-io.h b/include/sysemu/block-backend-io.h index 6517c39295..7600822196 100644 --- a/include/sysemu/block-backend-io.h +++ b/include/sysemu/block-backend-io.h @@ -73,6 +73,7 @@ void blk_iostatus_set_err(BlockBackend *blk, int error); int blk_get_max_iov(BlockBackend *blk); int blk_get_max_hw_iov(BlockBackend *blk); void blk_set_guest_block_size(BlockBackend *blk, int align); +int blk_get_guest_block_size(BlockBackend *blk); void blk_io_plug(BlockBackend *blk); void blk_io_unplug(BlockBackend *blk);