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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1718127437; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=193HeBPP9dVSfVwQtrX9rCBKDVSTtth8L3GESbEZ8WA=; b=Af0kIeAUGxV4dSuDCBd3jkjPYsjZTeGBmR3sTXe4IRB0ESig6htcl4/N263OM4ofmiCwqS HjZEvSH6daIo0XeRbzDSHGTbA6AenVimqOL8HpellmduxCDIpdekANx/d37qgsEQZ/HT6J G1JNtIEb/svSRuzL8ivJ1zXzllZhw9M= X-MC-Unique: rGRZfUjHPkW7X0pr_WDx0A-1 From: Kevin Wolf To: qemu-block@nongnu.org Cc: kwolf@redhat.com, qemu-devel@nongnu.org Subject: [PULL 5/8] block/copy-before-write: use uint64_t for timeout in nanoseconds Date: Tue, 11 Jun 2024 19:36:55 +0200 Message-ID: <20240611173658.231831-6-kwolf@redhat.com> In-Reply-To: <20240611173658.231831-1-kwolf@redhat.com> References: <20240611173658.231831-1-kwolf@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 11 X-Spam_score: 1.1 X-Spam_bar: + X-Spam_report: (1.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.141, 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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1718127485466100005 From: Fiona Ebner rather than the uint32_t for which the maximum is slightly more than 4 seconds and larger values would overflow. The QAPI interface allows specifying the number of seconds, so only values 0 to 4 are safe right now, other values lead to a much lower timeout than a user expects. The block_copy() call where this is used already takes a uint64_t for the timeout, so no change required there. Fixes: 6db7fd1ca9 ("block/copy-before-write: implement cbw-timeout option") Reported-by: Friedrich Weber Signed-off-by: Fiona Ebner Message-ID: <20240429141934.442154-1-f.ebner@proxmox.com> Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Kevin Wolf Signed-off-by: Kevin Wolf --- block/copy-before-write.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/copy-before-write.c b/block/copy-before-write.c index cd65524e26..853e01a1eb 100644 --- a/block/copy-before-write.c +++ b/block/copy-before-write.c @@ -43,7 +43,7 @@ typedef struct BDRVCopyBeforeWriteState { BlockCopyState *bcs; BdrvChild *target; OnCbwError on_cbw_error; - uint32_t cbw_timeout_ns; + uint64_t cbw_timeout_ns; bool discard_source; =20 /* --=20 2.45.2