From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Bradley Morgan <include@grrlz.net>
Cc: Petr Mladek <pmladek@suse.com>,
Feng Tang <feng.tang@linux.alibaba.com>,
Andrew Morton <akpm@linux-foundation.org>,
Madhavan Srinivasan <maddy@linux.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>,
Christophe Leroy <chleroy@kernel.org>,
Mukesh Kumar Chaurasiya <mchauras@linux.ibm.com>,
Jinchao Wang <wangjinchao600@gmail.com>,
Kees Cook <kees@kernel.org>, Rio <rioo.tsukatsukii@gmail.com>,
Joel Granados <joel.granados@kernel.org>,
Pnina Feder <pnina.feder@mobileye.com>,
Petr Pavlu <petr.pavlu@suse.com>,
Sergey Senozhatsky <senozhatsky@chromium.org>,
Douglas Anderson <dianders@chromium.org>,
Mayank Rungta <mrungta@google.com>, Tejun Heo <tj@kernel.org>,
Zhenguo Yao <yaozhenguo1@gmail.com>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
stable@vger.kernel.org
Subject: Re: [PATCH v2 1/4] sys_info: add helper for callers that handle all_bt
Date: Tue, 23 Jun 2026 23:14:52 +0300 [thread overview]
Message-ID: <ajrpPMo3Qc_SgFkG@ashevche-desk.local> (raw)
In-Reply-To: <ajrob9r6cVtxqv72@ashevche-desk.local>
On Tue, Jun 23, 2026 at 11:11:34PM +0300, Andy Shevchenko wrote:
> On Tue, Jun 23, 2026 at 03:34:58PM +0000, Bradley Morgan wrote:
> > Some callers handle SYS_INFO_ALL_BT themselves before calling sys_info().
> > Add a helper that strips that bit without turning an all_bt only mask into
> > a kernel_sys_info fallback.
>
> You also want a getter with check
>
> bool sysinfo_is_all_bt_enabled(..., *si_mask)
>
> where *si_mask is the result of READ_ONCE() that you keep as implementation
> detail inside this helper.
Ah, sorry, I have thought that the mask is part of sysinfo implementation.
Disregard my above comment, it can't be done without also supplying the pointer
to the original one, which makes no sense.
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2026-06-23 20:15 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-23 15:34 [PATCH v2 1/4] sys_info: add helper for callers that handle all_bt Bradley Morgan
2026-06-23 15:34 ` [PATCH v2 2/4] watchdog: avoid sys_info fallback for all_bt Bradley Morgan
2026-06-23 15:35 ` [PATCH v2 3/4] powerpc/watchdog: " Bradley Morgan
2026-06-23 15:35 ` [PATCH v2 4/4] panic: avoid duplicate all CPU backtraces from sys_info Bradley Morgan
2026-06-23 20:11 ` [PATCH v2 1/4] sys_info: add helper for callers that handle all_bt Andy Shevchenko
2026-06-23 20:14 ` Andy Shevchenko [this message]
2026-06-23 20:16 ` Bradley Morgan
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