Message ID | 20181220152030.28035-2-remy.noel@blade-group.com |
---|---|
State | New |
Headers | show
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X-Received-From: 2a00:1450:4864:20::544 Subject: [Qemu-devel] [QEMU-devel][PATCH v4 1/2] aio-posix: Unregister fd from ctx epoll when removing fd_handler. X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: <qemu-devel.nongnu.org> List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe> List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel/> List-Post: <mailto:qemu-devel@nongnu.org> List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help> List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=subscribe> Cc: Paolo Bonzini <pbonzini@redhat.com>, Remy Noel <remy.noel@blade-group.com>, Fam Zheng <famz@redhat.com>, "open list:Block I/O path" <qemu-block@nongnu.org>, Stefan Hajnoczi <stefanha@redhat.com> Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org> |
Series |
Fix concurrent aio_poll/set_fd_handler.
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expand
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diff --git a/util/aio-posix.c b/util/aio-posix.c index 51c41ed3c9..a927319d2c 100644 --- a/util/aio-posix.c +++ b/util/aio-posix.c @@ -245,6 +245,9 @@ void aio_set_fd_handler(AioContext *ctx, QLIST_REMOVE(node, node); deleted = true; } + /* Clean events in order to unregister fd from the ctx epoll. */ + node->pfd.events = 0; + poll_disable_change = -!node->io_poll; } else { poll_disable_change = !io_poll - (node && !node->io_poll);