From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Christoph Hellwig <hch@lst.de>
Cc: x86@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/3] x86/fpu: don't use current->mm to check for a kthread
Date: Tue, 11 Jun 2019 09:52:37 +0200 [thread overview]
Message-ID: <20190611075236.r54rclevt2ehetdv@linutronix.de> (raw)
In-Reply-To: <20190604175411.GA27477@lst.de>
On 2019-06-04 19:54:12 [+0200], Christoph Hellwig wrote:
> current->mm can be non-NULL if a kthread calls use_mm. Check for
> PF_KTHREAD instead to decide when to store user mode FP state.
>
> Fixes: 2722146eb784 ("x86/fpu: Remove fpu->initialized")
> Reported-by: Peter Zijlstra <peterz@infradead.org>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
For the whole series.
Sebastian
next prev parent reply other threads:[~2019-06-11 7:52 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-04 7:15 x86 fpu cleanups Christoph Hellwig
2019-06-04 7:15 ` [PATCH 1/3] x86/fpu: Simplify kernel_fpu_end Christoph Hellwig
2019-06-17 10:31 ` [tip:x86/fpu] x86/fpu: Simplify kernel_fpu_end() tip-bot for Christoph Hellwig
2019-06-04 7:15 ` [PATCH 2/3] x86/fpu: Simplify kernel_fpu_begin Christoph Hellwig
2019-06-04 11:47 ` Peter Zijlstra
2019-06-04 13:11 ` Christoph Hellwig
2019-06-04 13:34 ` Peter Zijlstra
2019-06-04 14:34 ` Christoph Hellwig
2019-06-17 10:31 ` [tip:x86/fpu] x86/fpu: Simplify kernel_fpu_begin() tip-bot for Christoph Hellwig
2019-06-04 7:15 ` [PATCH 3/3] x86/fpu: remove the fpu__save export Christoph Hellwig
2019-06-17 10:32 ` [tip:x86/fpu] x86/fpu: Remove the fpu__save() export tip-bot for Christoph Hellwig
2019-06-04 17:54 ` [PATCH 4/3] x86/fpu: don't use current->mm to check for a kthread Christoph Hellwig
2019-06-11 7:52 ` Sebastian Andrzej Siewior [this message]
2019-06-13 19:03 ` Borislav Petkov
2019-06-13 19:07 ` [tip:x86/urgent] x86/fpu: Don't " tip-bot for Christoph Hellwig
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=20190611075236.r54rclevt2ehetdv@linutronix.de \
--to=bigeasy@linutronix.de \
--cc=hch@lst.de \
--cc=linux-kernel@vger.kernel.org \
--cc=x86@kernel.org \
/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).