From: Dario Faggioli <dfaggioli@suse.com>
To: Andrew Cooper <andrew.cooper3@citrix.com>,
Xen-devel <xen-devel@lists.xen.org>
Cc: "Stefano Stabellini" <sstabellini@kernel.org>,
"Wei Liu" <wei.liu2@citrix.com>,
"George Dunlap" <George.Dunlap@eu.citrix.com>,
"Tim Deegan" <tim@xen.org>, "Julien Grall" <julien.grall@arm.com>,
"Jan Beulich" <JBeulich@suse.com>,
"Roger Pau Monné" <roger.pau@citrix.com>
Subject: Re: [PATCH 1/6] xen/domain: Reduce the quantity of initialisation for system domains
Date: Thu, 01 Mar 2018 11:10:08 +0100 [thread overview]
Message-ID: <1519899008.9145.11.camel@suse.com> (raw)
In-Reply-To: <1519827268-18199-2-git-send-email-andrew.cooper3@citrix.com>
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On Wed, 2018-02-28 at 14:14 +0000, Andrew Cooper wrote:
> * System domains don't need watchdog initialisation or iomem/irq
> rangesets,
> and will not plausibly be a xenstore or hardware domain.
> * The idle domain doesn't need scheduler initialisation (and in
> particular,
> removing this path allows for substantial scheduler cleanup), and
> isn't
> liable to ever need late_hwdom_init().
>
> Move all of these initialisations pass the DOMCRF_dummy early exit,
> and into
> non-idle paths. rangeset_domain_initialise() remains because it
> makes no
> allocations, but does initialise a linked list and spinlock. The
> poolid
> parameter can be dropped as sched_init_domain()'s parameter is now
> unconditionally 0.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
>
Reviewed-by: Dario Faggioli <dfaggioli@suse.com>
Regards,
Dario
--
<<This happens because I choose it to happen!>> (Raistlin Majere)
-----------------------------------------------------------------
Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Software Engineer @ SUSE https://www.suse.com/
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next prev parent reply other threads:[~2018-03-01 10:10 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-28 14:14 [PATCH 0/6] Assorted improvements to domain creation Andrew Cooper
2018-02-28 14:14 ` [PATCH 1/6] xen/domain: Reduce the quantity of initialisation for system domains Andrew Cooper
2018-02-28 15:22 ` George Dunlap
2018-03-01 10:10 ` Dario Faggioli [this message]
2018-02-28 14:14 ` [PATCH 2/6] xen/credit2: Move repl_timer into struct csched2_dom Andrew Cooper
2018-02-28 15:26 ` George Dunlap
2018-03-01 10:12 ` Dario Faggioli
2018-02-28 14:14 ` [PATCH 3/6] xen/sched: Improvements to the {alloc, free}_domdata() interfaces Andrew Cooper
2018-02-28 15:40 ` George Dunlap
2018-02-28 16:31 ` Meng Xu
2018-03-01 10:39 ` Dario Faggioli
2018-03-05 18:20 ` Andrew Cooper
2018-02-28 14:14 ` [PATCH 4/6] xen/sched: Remove {init, destroy}_domain() interfaces Andrew Cooper
2018-02-28 16:22 ` George Dunlap
2018-02-28 16:33 ` Andrew Cooper
2018-03-01 11:08 ` Dario Faggioli
2018-02-28 16:34 ` Meng Xu
2018-03-01 11:00 ` Dario Faggioli
2018-02-28 14:14 ` [PATCH 5/6] xen/domain: Call sched_destroy_domain() in the domain_create() error path Andrew Cooper
2018-02-28 16:24 ` George Dunlap
2018-03-01 13:25 ` Dario Faggioli
2018-03-01 13:27 ` Dario Faggioli
2018-02-28 14:14 ` [PATCH 6/6] xen/domain: Use IS_ERR_OR_NULL() when checking the return value of domain_create() Andrew Cooper
2018-02-28 16:36 ` George Dunlap
2018-03-07 19:12 ` [PATCH v2 6/6] xen/domain: Added debug safety in the domain_create() failure path Andrew Cooper
2018-03-08 9:04 ` Jan Beulich
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