{"id":2229474,"url":"http://patchwork.ozlabs.org/api/1.1/covers/2229474/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/cover/20260428095015.76902-1-guobin@linux.alibaba.com/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.1/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260428095015.76902-1-guobin@linux.alibaba.com>","date":"2026-04-28T09:50:13","name":"[0/2] util/aio-posix: fix and clean up poll_ready handling in aio_prepare()","submitter":{"id":91693,"url":"http://patchwork.ozlabs.org/api/1.1/people/91693/?format=json","name":"Bin Guo","email":"guobin@linux.alibaba.com"},"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/cover/20260428095015.76902-1-guobin@linux.alibaba.com/mbox/","series":[{"id":501810,"url":"http://patchwork.ozlabs.org/api/1.1/series/501810/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=501810","date":"2026-04-28T09:50:13","name":"util/aio-posix: fix and clean up poll_ready handling in aio_prepare()","version":1,"mbox":"http://patchwork.ozlabs.org/series/501810/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/covers/2229474/comments/","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=linux.alibaba.com header.i=@linux.alibaba.com\n header.a=rsa-sha256 header.s=default header.b=DepVXYpe;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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Tue, 28 Apr 2026 05:50:53 -0400","from localhost(mailfrom:guobin@linux.alibaba.com\n fp:SMTPD_---0X1u667w_1777369817 cluster:ay36) by smtp.aliyun-inc.com;\n Tue, 28 Apr 2026 17:50:33 +0800"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=linux.alibaba.com; s=default;\n t=1777369834; h=From:To:Subject:Date:Message-ID:MIME-Version;\n bh=490pcYJYuDPXlIAQOp+E+5S2LUcUJ5QN+6D5lFAP5FU=;\n b=DepVXYpeFO+QRga4PHzth8na6kwpNt9LJiqPbcFAR/AgSzo3QFmb1n8iPocz94GB78l05/SeKEAZ6n86D2TNTNZIASKRw/wXi1lVjxA2PfzFDoJs48R0hdkvwS438kZkfpiVjVyl3aMqUjYbgv/I981xBqsu6tVGw1DwpUs+Utc=","X-Alimail-AntiSpam":"AC=PASS; BC=-1|-1; BR=01201311R141e4; CH=green;\n DM=||false|;\n DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=maildocker-contentspam033045133197;\n MF=guobin@linux.alibaba.com; NM=1; PH=DS; RN=5; SR=0;\n TI=SMTPD_---0X1u667w_1777369817;","From":"Bin Guo ","To":"qemu-devel@nongnu.org","Cc":"pbonzini@redhat.com, stefanha@redhat.com, fam@euphon.net,\n qemu-block@nongnu.org","Subject":"[PATCH 0/2] util/aio-posix: fix and clean up poll_ready handling in\n aio_prepare()","Date":"Tue, 28 Apr 2026 17:50:13 +0800","Message-ID":"<20260428095015.76902-1-guobin@linux.alibaba.com>","X-Mailer":"git-send-email 2.50.1","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","Received-SPF":"pass client-ip=115.124.30.118;\n envelope-from=guobin@linux.alibaba.com;\n helo=out30-118.freemail.mail.aliyun.com","X-Spam_score_int":"-174","X-Spam_score":"-17.5","X-Spam_bar":"-----------------","X-Spam_report":"(-17.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, ENV_AND_HDR_SPF_MATCH=-0.5,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001,\n UNPARSEABLE_RELAY=0.001, USER_IN_DEF_DKIM_WL=-7.5,\n USER_IN_DEF_SPF_WL=-7.5 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":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"When aio_prepare() calls poll_set_started(..., false) to disable poll\nmode before handing control to GLib's event loop, the final poll round\nmay mark handlers poll_ready=true and insert them into a local\nready_list. That list is discarded when aio_prepare() returns, so\nthose handlers are silently lost until the next GLib iteration.\n\nPatch 1 fixes the bug: aio_pending() is extended to scan\npoll_aio_handlers for poll_ready nodes so GLib's check phase reports\npending work, and aio_dispatch() is taught to collect those nodes\nbefore dispatching, ensuring they are executed in the same cycle.\n\nPatch 2 is a follow-up clean-up: now that poll_ready nodes are handled\nvia aio_pending()/aio_dispatch(), the local ready_list in aio_prepare()\nserves no purpose. Pass NULL to poll_set_started() and teach it to set\npoll_ready=true directly, eliminating the unnecessary list operations.\n\nBin Guo (2):\n util/aio-posix: fix poll_ready handlers dropped in aio_prepare()\n util/aio-posix: avoid allocating ready_list in aio_prepare()\n\n util/aio-posix.c | 47 ++++++++++++++++++++++++++++++++++++++++-------\n 1 file changed, 40 insertions(+), 7 deletions(-)"}