From: liu ping fan <qemulist@gmail.com> To: Avi Kivity <avi@redhat.com> Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, "Anthony Liguori" <anthony@codemonkey.ws>, "Jan Kiszka" <jan.kiszka@siemens.com>, "Marcelo Tosatti" <mtosatti@redhat.com>, "Stefan Hajnoczi" <stefanha@gmail.com>, "Paolo Bonzini" <pbonzini@redhat.com>, "Blue Swirl" <blauwirbel@gmail.com>, "Andreas Färber" <afaerber@suse.de> Subject: Re: [PATCH 11/15] lock: introduce global lock for device tree Date: Thu, 9 Aug 2012 15:27:59 +0800 [thread overview] Message-ID: <CAJnKYQm_u=hEoj4egjTmzs6Pr5APojOU6rvjuhQ8FwNSa1=RAg@mail.gmail.com> (raw) In-Reply-To: <50223475.1030202@redhat.com> On Wed, Aug 8, 2012 at 5:42 PM, Avi Kivity <avi@redhat.com> wrote: > On 08/08/2012 09:25 AM, Liu Ping Fan wrote: >> From: Liu Ping Fan <pingfank@linux.vnet.ibm.com> >> > > Please explain the motivation. AFAICT, the big qemu lock is sufficient. > Oh, this is one of the series locks for the removal of big qemu lock. The degradation of big lock will take several steps, including to introduce device's private lock. Till then, when the device add path from iothread and the remove path in io-dispatch is out of the big qemu lock. We need this extra lock. These series is too big, so I send out the 1st phase for review. Regards, pingan > > -- > error compiling committee.c: too many arguments to function
WARNING: multiple messages have this Message-ID (diff)
From: liu ping fan <qemulist@gmail.com> To: Avi Kivity <avi@redhat.com> Cc: kvm@vger.kernel.org, "Jan Kiszka" <jan.kiszka@siemens.com>, "Marcelo Tosatti" <mtosatti@redhat.com>, qemu-devel@nongnu.org, "Blue Swirl" <blauwirbel@gmail.com>, "Anthony Liguori" <anthony@codemonkey.ws>, "Stefan Hajnoczi" <stefanha@gmail.com>, "Paolo Bonzini" <pbonzini@redhat.com>, "Andreas Färber" <afaerber@suse.de> Subject: Re: [Qemu-devel] [PATCH 11/15] lock: introduce global lock for device tree Date: Thu, 9 Aug 2012 15:27:59 +0800 [thread overview] Message-ID: <CAJnKYQm_u=hEoj4egjTmzs6Pr5APojOU6rvjuhQ8FwNSa1=RAg@mail.gmail.com> (raw) In-Reply-To: <50223475.1030202@redhat.com> On Wed, Aug 8, 2012 at 5:42 PM, Avi Kivity <avi@redhat.com> wrote: > On 08/08/2012 09:25 AM, Liu Ping Fan wrote: >> From: Liu Ping Fan <pingfank@linux.vnet.ibm.com> >> > > Please explain the motivation. AFAICT, the big qemu lock is sufficient. > Oh, this is one of the series locks for the removal of big qemu lock. The degradation of big lock will take several steps, including to introduce device's private lock. Till then, when the device add path from iothread and the remove path in io-dispatch is out of the big qemu lock. We need this extra lock. These series is too big, so I send out the 1st phase for review. Regards, pingan > > -- > error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2012-08-09 7:28 UTC|newest] Thread overview: 154+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-08-08 6:25 [PATCH 0/15 v2] prepare unplug out of protection of global lock Liu Ping Fan 2012-08-08 6:25 ` [Qemu-devel] " Liu Ping Fan 2012-08-08 6:25 ` [PATCH 01/15] atomic: introduce atomic operations Liu Ping Fan 2012-08-08 6:25 ` [Qemu-devel] " Liu Ping Fan 2012-08-08 8:55 ` Paolo Bonzini 2012-08-08 8:55 ` [Qemu-devel] " Paolo Bonzini 2012-08-08 9:02 ` Avi Kivity 2012-08-08 9:02 ` [Qemu-devel] " Avi Kivity 2012-08-08 9:05 ` 陳韋任 (Wei-Ren Chen) 2012-08-08 9:05 ` 陳韋任 (Wei-Ren Chen) 2012-08-08 9:15 ` Avi Kivity 2012-08-08 9:15 ` [Qemu-devel] " Avi Kivity 2012-08-08 9:21 ` Peter Maydell 2012-08-08 9:21 ` Peter Maydell 2012-08-08 13:09 ` Stefan Hajnoczi 2012-08-08 13:09 ` Stefan Hajnoczi 2012-08-08 13:18 ` Paolo Bonzini 2012-08-08 13:18 ` Paolo Bonzini 2012-08-08 13:32 ` Peter Maydell 2012-08-08 13:32 ` [Qemu-devel] " Peter Maydell 2012-08-08 13:49 ` Paolo Bonzini 2012-08-08 13:49 ` [Qemu-devel] " Paolo Bonzini 2012-08-08 14:00 ` Avi Kivity 2012-08-08 14:00 ` [Qemu-devel] " Avi Kivity 2012-08-08 6:25 ` [PATCH 02/15] qom: using atomic ops to re-implement object_ref Liu Ping Fan 2012-08-08 6:25 ` [Qemu-devel] " Liu Ping Fan 2012-08-08 6:25 ` [PATCH 03/15] qom: introduce reclaimer to release obj Liu Ping Fan 2012-08-08 6:25 ` [Qemu-devel] " Liu Ping Fan 2012-08-08 9:05 ` Avi Kivity 2012-08-08 9:05 ` [Qemu-devel] " Avi Kivity 2012-08-08 9:07 ` Paolo Bonzini 2012-08-08 9:07 ` [Qemu-devel] " Paolo Bonzini 2012-08-08 9:15 ` Avi Kivity 2012-08-08 9:15 ` [Qemu-devel] " Avi Kivity 2012-08-09 7:33 ` liu ping fan 2012-08-09 7:33 ` [Qemu-devel] " liu ping fan 2012-08-09 7:49 ` Paolo Bonzini 2012-08-09 7:49 ` [Qemu-devel] " Paolo Bonzini 2012-08-09 8:18 ` Avi Kivity 2012-08-09 8:18 ` [Qemu-devel] " Avi Kivity 2012-08-10 6:43 ` liu ping fan 2012-08-10 6:43 ` [Qemu-devel] " liu ping fan 2012-08-08 9:35 ` Paolo Bonzini 2012-08-08 9:35 ` [Qemu-devel] " Paolo Bonzini 2012-08-09 7:38 ` liu ping fan 2012-08-09 7:38 ` [Qemu-devel] " liu ping fan 2012-08-08 6:25 ` [PATCH 04/15] memory: MemoryRegion topology must be stable when updating Liu Ping Fan 2012-08-08 6:25 ` [Qemu-devel] " Liu Ping Fan 2012-08-08 9:13 ` Avi Kivity 2012-08-08 9:13 ` [Qemu-devel] " Avi Kivity 2012-08-09 7:28 ` liu ping fan 2012-08-09 7:28 ` [Qemu-devel] " liu ping fan 2012-08-09 8:24 ` Avi Kivity 2012-08-09 8:24 ` [Qemu-devel] " Avi Kivity 2012-08-10 6:44 ` liu ping fan 2012-08-10 6:44 ` [Qemu-devel] " liu ping fan 2012-08-13 18:28 ` Marcelo Tosatti 2012-08-13 18:28 ` [Qemu-devel] " Marcelo Tosatti 2012-08-08 19:17 ` Blue Swirl 2012-08-08 19:17 ` [Qemu-devel] " Blue Swirl 2012-08-09 7:28 ` liu ping fan 2012-08-09 7:28 ` [Qemu-devel] " liu ping fan 2012-08-09 17:09 ` Blue Swirl 2012-08-09 17:09 ` [Qemu-devel] " Blue Swirl 2012-08-08 6:25 ` [PATCH 05/15] memory: introduce life_ops to MemoryRegion Liu Ping Fan 2012-08-08 6:25 ` [Qemu-devel] " Liu Ping Fan 2012-08-08 9:18 ` Avi Kivity 2012-08-08 9:18 ` [Qemu-devel] " Avi Kivity 2012-08-08 6:25 ` [PATCH 06/15] memory: use refcnt to manage MemoryRegion Liu Ping Fan 2012-08-08 6:25 ` [Qemu-devel] " Liu Ping Fan 2012-08-08 9:20 ` Avi Kivity 2012-08-08 9:20 ` [Qemu-devel] " Avi Kivity 2012-08-09 7:27 ` liu ping fan 2012-08-09 7:27 ` [Qemu-devel] " liu ping fan 2012-08-09 8:38 ` Avi Kivity 2012-08-09 8:38 ` [Qemu-devel] " Avi Kivity 2012-08-10 6:44 ` liu ping fan 2012-08-10 6:44 ` [Qemu-devel] " liu ping fan 2012-08-12 8:43 ` Avi Kivity 2012-08-12 8:43 ` [Qemu-devel] " Avi Kivity 2012-08-08 6:25 ` [PATCH 07/15] memory: inc/dec mr's ref when adding/removing from mem view Liu Ping Fan 2012-08-08 6:25 ` [Qemu-devel] " Liu Ping Fan 2012-08-08 6:25 ` [PATCH 08/15] memory: introduce PhysMap to present snapshot of toploygy Liu Ping Fan 2012-08-08 6:25 ` [Qemu-devel] " Liu Ping Fan 2012-08-08 9:27 ` Avi Kivity 2012-08-08 9:27 ` [Qemu-devel] " Avi Kivity 2012-08-08 19:18 ` Blue Swirl 2012-08-08 19:18 ` [Qemu-devel] " Blue Swirl 2012-08-09 7:29 ` liu ping fan 2012-08-09 7:29 ` [Qemu-devel] " liu ping fan 2012-08-08 6:25 ` [PATCH 09/15] memory: prepare flatview and radix-tree for rcu style access Liu Ping Fan 2012-08-08 6:25 ` [Qemu-devel] " Liu Ping Fan 2012-08-08 9:41 ` Avi Kivity 2012-08-08 9:41 ` [Qemu-devel] " Avi Kivity 2012-08-11 1:58 ` liu ping fan 2012-08-11 1:58 ` [Qemu-devel] " liu ping fan 2012-08-11 10:06 ` liu ping fan 2012-08-11 10:06 ` [Qemu-devel] " liu ping fan 2012-08-08 19:23 ` Blue Swirl 2012-08-08 19:23 ` [Qemu-devel] " Blue Swirl 2012-08-09 7:29 ` liu ping fan 2012-08-09 7:29 ` [Qemu-devel] " liu ping fan 2012-08-08 6:25 ` [PATCH 10/15] memory: change tcg related code to using PhysMap Liu Ping Fan 2012-08-08 6:25 ` [Qemu-devel] " Liu Ping Fan 2012-08-08 6:25 ` [PATCH 11/15] lock: introduce global lock for device tree Liu Ping Fan 2012-08-08 6:25 ` [Qemu-devel] " Liu Ping Fan 2012-08-08 9:41 ` Paolo Bonzini 2012-08-08 9:41 ` [Qemu-devel] " Paolo Bonzini 2012-08-09 7:28 ` liu ping fan 2012-08-09 7:28 ` [Qemu-devel] " liu ping fan 2012-08-09 7:41 ` Paolo Bonzini 2012-08-09 7:41 ` [Qemu-devel] " Paolo Bonzini 2012-08-08 9:42 ` Avi Kivity 2012-08-08 9:42 ` [Qemu-devel] " Avi Kivity 2012-08-09 7:27 ` liu ping fan [this message] 2012-08-09 7:27 ` liu ping fan 2012-08-09 8:31 ` Avi Kivity 2012-08-09 8:31 ` [Qemu-devel] " Avi Kivity 2012-08-08 6:25 ` [PATCH 12/15] qdev: using devtree lock to protect device's accessing Liu Ping Fan 2012-08-08 6:25 ` [Qemu-devel] " Liu Ping Fan 2012-08-08 9:33 ` Peter Maydell 2012-08-08 9:33 ` [Qemu-devel] " Peter Maydell 2012-08-08 6:25 ` [PATCH 13/15] hotplug: introduce qdev_unplug_complete() to remove device from views Liu Ping Fan 2012-08-08 6:25 ` [Qemu-devel] " Liu Ping Fan 2012-08-08 9:52 ` Paolo Bonzini 2012-08-08 9:52 ` [Qemu-devel] " Paolo Bonzini 2012-08-08 10:07 ` Avi Kivity 2012-08-08 10:07 ` [Qemu-devel] " Avi Kivity 2012-08-09 7:28 ` liu ping fan 2012-08-09 7:28 ` [Qemu-devel] " liu ping fan 2012-08-09 8:00 ` Paolo Bonzini 2012-08-09 8:00 ` [Qemu-devel] " Paolo Bonzini 2012-08-10 6:42 ` liu ping fan 2012-08-10 6:42 ` [Qemu-devel] " liu ping fan 2012-08-13 18:53 ` Marcelo Tosatti 2012-08-13 18:53 ` [Qemu-devel] " Marcelo Tosatti 2012-08-13 18:51 ` Marcelo Tosatti 2012-08-13 18:51 ` [Qemu-devel] " Marcelo Tosatti 2012-08-08 6:25 ` [PATCH 14/15] qom: object_unref call reclaimer Liu Ping Fan 2012-08-08 6:25 ` [Qemu-devel] " Liu Ping Fan 2012-08-08 9:40 ` Paolo Bonzini 2012-08-08 9:40 ` [Qemu-devel] " Paolo Bonzini 2012-08-13 18:56 ` Marcelo Tosatti 2012-08-13 18:56 ` [Qemu-devel] " Marcelo Tosatti 2012-08-08 6:25 ` [PATCH 15/15] e1000: using new interface--unmap to unplug Liu Ping Fan 2012-08-08 6:25 ` [Qemu-devel] " Liu Ping Fan 2012-08-08 9:56 ` Paolo Bonzini 2012-08-08 9:56 ` [Qemu-devel] " Paolo Bonzini 2012-08-09 7:28 ` liu ping fan 2012-08-09 7:28 ` [Qemu-devel] " liu ping fan 2012-08-09 7:40 ` Paolo Bonzini 2012-08-09 7:40 ` [Qemu-devel] " Paolo Bonzini 2012-08-10 6:43 ` liu ping fan 2012-08-10 6:43 ` [Qemu-devel] " liu ping fan
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