From: Michael Ellerman <patch-notifications@ellerman•id.au>
To: Sukadev Bhattiprolu <sukadev@linux•vnet.ibm.com>
Cc: felix@linux•vnet.ibm.com, linuxppc-dev@ozlabs•org,
clombard@linux•vnet.ibm.com, linux-kernel@vger•kernel.org,
vaibhav@linux•vnet.ibm.com
Subject: Re: [1/1] : powerpc: block interrupts when updating TIDR
Date: Mon, 29 Jan 2018 15:13:47 +1100 (AEDT) [thread overview]
Message-ID: <3zVGNC5s53z9t34@ozlabs.org> (raw)
In-Reply-To: <20171201213140.GA2776@us.ibm.com>
On Fri, 2017-12-01 at 21:31:40 UTC, Sukadev Bhattiprolu wrote:
> From: Sukadev Bhattiprolu <sukadev@linux•vnet.ibm.com>
> Date: Tue, 28 Nov 2017 13:39:43 -0600
> Subject: [PATCH 1/1]: powerpc: block interrupts when updating TIDR
>
> clear_thread_tidr() is called in interrupt context as a part of delayed
> put of the task structure (i.e as a part of timer interrupt). To prevent
> a deadlock, block interrupts when holding vas_thread_id_lock to set/
> clear TIDR for a task.
>
> Signed-off-by: Sukadev Bhattiprolu <sukadev@linux•vnet.ibm.com>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/384dfd627f1ee67d028e6f14c6e9bf
cheers
prev parent reply other threads:[~2018-01-29 4:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-01 21:31 [PATCH 1/1]: powerpc: block interrupts when updating TIDR Sukadev Bhattiprolu
2018-01-29 4:13 ` Michael Ellerman [this message]
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=3zVGNC5s53z9t34@ozlabs.org \
--to=patch-notifications@ellerman$(echo .)id.au \
--cc=clombard@linux$(echo .)vnet.ibm.com \
--cc=felix@linux$(echo .)vnet.ibm.com \
--cc=linux-kernel@vger$(echo .)kernel.org \
--cc=linuxppc-dev@ozlabs$(echo .)org \
--cc=sukadev@linux$(echo .)vnet.ibm.com \
--cc=vaibhav@linux$(echo .)vnet.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
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