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From: Will Deacon <will@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: rjw@rjwysocki.net, oleg@redhat.com, mingo@kernel.org,
	vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
	rostedt@goodmis.org, mgorman@suse.de,
	linux-kernel@vger.kernel.org, tj@kernel.org,
	linux-pm@vger.kernel.org
Subject: Re: [PATCH v3 1/6] freezer: Have {,un}lock_system_sleep() save/restore flags
Date: Thu, 14 Oct 2021 09:58:34 +0100	[thread overview]
Message-ID: <20211014085834.GA8135@willie-the-truck> (raw)
In-Reply-To: <20211009101444.853151071@infradead.org>

On Sat, Oct 09, 2021 at 12:07:55PM +0200, Peter Zijlstra wrote:
> Rafael explained that the reason for having both PF_NOFREEZE and
> PF_FREEZER_SKIP is that {,un}lock_system_sleep() is callable from
> kthread context that has previously called set_freezable().
> 
> In preparation of merging the flags, have {,un}lock_system_slee() save
> and restore current->flags.
> 
> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
> ---
>  drivers/scsi/scsi_transport_spi.c |    7 ++++---
>  include/linux/suspend.h           |    8 ++++----
>  kernel/power/hibernate.c          |   35 ++++++++++++++++++++++-------------
>  kernel/power/main.c               |   16 ++++++++++------
>  kernel/power/suspend.c            |   12 ++++++++----
>  kernel/power/user.c               |   24 ++++++++++++++----------
>  6 files changed, 62 insertions(+), 40 deletions(-)

There's lots of Christmas tree inversion sprinkled in here, but the change
looks good so:

Acked-by: Will Deacon <will@kernel.org>

Will

  reply	other threads:[~2021-10-14  8:58 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-09 10:07 [PATCH v3 0/6] Freezer rewrite Peter Zijlstra
2021-10-09 10:07 ` [PATCH v3 1/6] freezer: Have {,un}lock_system_sleep() save/restore flags Peter Zijlstra
2021-10-14  8:58   ` Will Deacon [this message]
2021-10-09 10:07 ` [PATCH v3 2/6] freezer,umh: Clean up freezer/initrd interaction Peter Zijlstra
2021-10-14  9:13   ` Will Deacon
2021-10-09 10:07 ` [PATCH v3 3/6] ptrace: Order and comment PT_flags Peter Zijlstra
2021-10-14  9:31   ` Will Deacon
2021-10-14 14:27     ` Peter Zijlstra
2021-10-09 10:07 ` [PATCH v3 4/6] ptrace: Track __TASK_TRACED state in p->ptrace Peter Zijlstra
2021-10-09 10:07 ` [PATCH v3 5/6] sched,ptrace: Avoid relying on __TASK_TRACED | __TASK_STOPPED Peter Zijlstra
2021-10-09 10:08 ` [PATCH v3 6/6] freezer,sched: Rewrite core freezer logic Peter Zijlstra
2021-10-18 13:36   ` Peter Zijlstra

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