From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40651) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eduLh-0001re-H6 for qemu-devel@nongnu.org; Tue, 23 Jan 2018 03:54:34 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eduLg-000085-Gv for qemu-devel@nongnu.org; Tue, 23 Jan 2018 03:54:33 -0500 Received: from mail.ispras.ru ([83.149.199.45]:57252) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eduLg-00007r-8l for qemu-devel@nongnu.org; Tue, 23 Jan 2018 03:54:32 -0500 From: Pavel Dovgalyuk Date: Tue, 23 Jan 2018 11:54:32 +0300 Message-ID: <20180123085432.3419.84711.stgit@pasha-VirtualBox> In-Reply-To: <20180123085319.3419.97865.stgit@pasha-VirtualBox> References: <20180123085319.3419.97865.stgit@pasha-VirtualBox> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] [RFC PATCH v5 13/24] kvm: remove BQL lock/unlock List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: kwolf@redhat.com, peter.maydell@linaro.org, boost.lists@gmail.com, quintela@redhat.com, jasowang@redhat.com, mst@redhat.com, zuban32s@gmail.com, maria.klimushenkova@ispras.ru, dovgaluk@ispras.ru, kraxel@redhat.com, pavel.dovgaluk@ispras.ru, pbonzini@redhat.com, alex.bennee@linaro.org BQL now is used only for waiting for IO events. This patch also removes lock/unlock from kvm module. Signed-off-by: Pavel Dovgalyuk --- accel/kvm/kvm-all.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 9628512..d708c7f 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -1861,7 +1861,6 @@ int kvm_cpu_exec(CPUState *cpu) return EXCP_HLT; } - qemu_mutex_unlock_iothread(); cpu_exec_start(cpu); do { MemTxAttrs attrs; @@ -1992,7 +1991,6 @@ int kvm_cpu_exec(CPUState *cpu) } while (ret == 0); cpu_exec_end(cpu); - qemu_mutex_lock_iothread(); if (ret < 0) { cpu_dump_state(cpu, stderr, fprintf, CPU_DUMP_CODE);