From: Peter Zijlstra <peterz@infradead.org>
To: Mike Kravetz <mike.kravetz@oracle.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Michal Hocko <mhocko@suse.com>,
"Paul E . McKenney" <paulmck@kernel.org>,
Shakeel Butt <shakeelb@google.com>,
tglx@linutronix.de, john.ogness@linutronix.de, urezki@gmail.com,
ast@fb.com, Eric Dumazet <edumazet@google.com>,
Mina Almasry <almasrymina@google.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] hugetlb: select PREEMPT_COUNT if HUGETLB_PAGE for in_atomic use
Date: Thu, 11 Mar 2021 09:46:30 +0100 [thread overview]
Message-ID: <YEnY5hWLT/en7kw1@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20210311021321.127500-1-mike.kravetz@oracle.com>
On Wed, Mar 10, 2021 at 06:13:21PM -0800, Mike Kravetz wrote:
> from irq context. Changing the check in the code from !in_task to
> in_atomic would handle the situations when called with irqs disabled.
It does not. local_irq_disable() does not change preempt_count().
next prev parent reply other threads:[~2021-03-11 8:47 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-11 2:13 [PATCH] hugetlb: select PREEMPT_COUNT if HUGETLB_PAGE for in_atomic use Mike Kravetz
2021-03-11 5:43 ` Andrew Morton
2021-03-11 8:20 ` Michal Hocko
2021-03-11 8:26 ` Michal Hocko
2021-03-11 8:27 ` Michal Hocko
2021-03-11 8:46 ` Peter Zijlstra [this message]
2021-03-11 9:01 ` Michal Hocko
2021-03-11 9:32 ` Peter Zijlstra
2021-03-11 9:44 ` Michal Hocko
2021-03-11 9:52 ` Peter Zijlstra
2021-03-11 11:09 ` Michal Hocko
2021-03-11 11:36 ` Peter Zijlstra
2021-03-11 12:02 ` Michal Hocko
2021-03-11 17:25 ` Mike Kravetz
2021-03-11 12:49 ` Michal Hocko
2021-03-11 17:50 ` Paul E. McKenney
2021-03-11 9:49 ` Peter Zijlstra
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=YEnY5hWLT/en7kw1@hirez.programming.kicks-ass.net \
--to=peterz@infradead.org \
--cc=akpm@linux-foundation.org \
--cc=almasrymina@google.com \
--cc=ast@fb.com \
--cc=edumazet@google.com \
--cc=john.ogness@linutronix.de \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mhocko@suse.com \
--cc=mike.kravetz@oracle.com \
--cc=paulmck@kernel.org \
--cc=shakeelb@google.com \
--cc=tglx@linutronix.de \
--cc=urezki@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).