From: Emanuele Giuseppe Esposito <eesposit@redhat.com>
To: qemu-block@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>,
Emanuele Giuseppe Esposito <eesposit@redhat.com>,
Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>,
qemu-devel@nongnu.org, Max Reitz <mreitz@redhat.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>, John Snow <jsnow@redhat.com>
Subject: [PATCH 0/6] block-copy: make helper APIs thread safe
Date: Mon, 10 May 2021 10:59:35 +0200 [thread overview]
Message-ID: <20210510085941.22769-1-eesposit@redhat.com> (raw)
This serie of patches bring thread safety to the smaller APIs used by
block-copy, namely ratelimit, progressmeter, co-shared-resource
and aiotask.
The end goal is to reduce the usage of the global
AioContexlock in block-copy, by introducing smaller granularity
locks thus on making the block layer thread safe.
This serie depends on Paolo's coroutine_sleep API.
What's missing for block-copy to be fully thread-safe is fixing
the CoSleep API to allow cross-thread sleep and wakeup.
Paolo is working on it and will post the patches once his new
CoSleep API is accepted.
Patches 1-3 work on ratelimit (they are also based on the first
ratelimit patch sent by Paolo), 4 covers progressmeter,
5 co-shared-resources and 6 aiopool.
Based-on: <20210503112550.478521-1-pbonzini@redhat.com> [coroutine_sleep]
Based-on: <20210413125533.217440-1-pbonzini@redhat.com> [ratelimit]
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
---
v1 -> v2:
* More field categorized as IN/State/OUT in the various struct
* Fix a couple of places where I missed locks [Vladimir, Paolo]
Emanuele Giuseppe Esposito (3):
progressmeter: protect with a mutex
co-shared-resource: protect with a mutex
aiopool: protect with a mutex
Paolo Bonzini (3):
ratelimit: treat zero speed as unlimited
block-copy: let ratelimit handle a speed of 0
blockjob: let ratelimit handle a speed of 0
block/aio_task.c | 63 ++++++++++++++++++++--------------
block/block-copy.c | 28 ++++++---------
blockjob.c | 45 +++++++++++++++---------
include/block/aio_task.h | 2 +-
include/qemu/progress_meter.h | 31 +++++++++++++++++
include/qemu/ratelimit.h | 12 +++++--
job-qmp.c | 8 +++--
job.c | 3 ++
qemu-img.c | 9 +++--
util/qemu-co-shared-resource.c | 26 +++++++++++---
10 files changed, 155 insertions(+), 72 deletions(-)
--
2.30.2
next reply other threads:[~2021-05-10 9:02 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-10 8:59 Emanuele Giuseppe Esposito [this message]
2021-05-10 8:59 ` [PATCH 1/6] ratelimit: treat zero speed as unlimited Emanuele Giuseppe Esposito
2021-05-10 11:00 ` Vladimir Sementsov-Ogievskiy
2021-05-10 8:59 ` [PATCH 2/6] block-copy: let ratelimit handle a speed of 0 Emanuele Giuseppe Esposito
2021-05-10 11:06 ` Vladimir Sementsov-Ogievskiy
2021-05-10 8:59 ` [PATCH 3/6] blockjob: " Emanuele Giuseppe Esposito
2021-05-10 11:17 ` Vladimir Sementsov-Ogievskiy
2021-05-10 8:59 ` [PATCH 4/6] progressmeter: protect with a mutex Emanuele Giuseppe Esposito
2021-05-10 11:28 ` Vladimir Sementsov-Ogievskiy
2021-05-10 16:52 ` Emanuele Giuseppe Esposito
2021-05-10 17:17 ` Vladimir Sementsov-Ogievskiy
2021-05-10 17:57 ` Emanuele Giuseppe Esposito
2021-05-11 12:28 ` Paolo Bonzini
2021-05-12 7:09 ` Vladimir Sementsov-Ogievskiy
2021-05-12 15:53 ` Stefan Hajnoczi
2021-05-10 8:59 ` [PATCH 5/6] co-shared-resource: " Emanuele Giuseppe Esposito
2021-05-10 11:40 ` Vladimir Sementsov-Ogievskiy
2021-05-11 8:34 ` Paolo Bonzini
2021-05-12 15:44 ` Stefan Hajnoczi
2021-05-12 18:30 ` Paolo Bonzini
2021-05-14 14:10 ` Emanuele Giuseppe Esposito
2021-05-14 14:26 ` Vladimir Sementsov-Ogievskiy via
2021-05-14 14:32 ` Emanuele Giuseppe Esposito
2021-05-14 15:30 ` Vladimir Sementsov-Ogievskiy via
2021-05-14 17:28 ` Emanuele Giuseppe Esposito
2021-05-14 21:15 ` Vladimir Sementsov-Ogievskiy via
2021-05-14 21:53 ` Emanuele Giuseppe Esposito
2021-05-15 7:11 ` Vladimir Sementsov-Ogievskiy via
2021-05-14 17:55 ` Paolo Bonzini
2021-05-10 8:59 ` [PATCH 6/6] aiopool: " Emanuele Giuseppe Esposito
2021-05-10 11:56 ` Vladimir Sementsov-Ogievskiy
2021-05-11 8:34 ` Paolo Bonzini
2021-05-12 15:19 ` Stefan Hajnoczi
2021-05-10 10:55 ` [PATCH 0/6] block-copy: make helper APIs thread safe Vladimir Sementsov-Ogievskiy
2021-05-12 14:24 ` Stefan Hajnoczi
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