From: K Prateek Nayak <kprateek.nayak@amd.com>
To: "Chen, Yu C" <yu.c.chen@intel.com>,
Valentin Schneider <vschneid@redhat.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
Shrikanth Hegde <sshegde@linux.ibm.com>,
"Gautham R. Shenoy" <gautham.shenoy@amd.com>,
Ingo Molnar <mingo@redhat.com>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
"Peter Zijlstra" <peterz@infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 3/8] sched/topology: Switch to assigning "sd->shared" from s_data
Date: Mon, 16 Feb 2026 09:20:40 +0530 [thread overview]
Message-ID: <ba0d649f-7cd6-4f7c-b93e-08d289db6dbd@amd.com> (raw)
In-Reply-To: <cc74535f-5794-4228-958e-ebe579b950cb@intel.com>
Hello Chenyu,
On 2/14/2026 8:34 AM, Chen, Yu C wrote:
>> + sd = *per_cpu_ptr(d.sd, i);
>
> might be
> if (!sd)
> continue;
> otherwise sd->flags below might cause NULL pointer exception.
Ack! I'll add in that check in the next version. Thank you for catching
that.
--
Thanks and Regards,
Prateek
next prev parent reply other threads:[~2026-02-16 3:50 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-20 11:32 [PATCH v3 0/8] sched/topology: Optimize sd->shared allocation K Prateek Nayak
2026-01-20 11:32 ` [PATCH v3 1/8] sched/topology: Compute sd_weight considering cpuset partitions K Prateek Nayak
2026-01-21 14:45 ` Chen, Yu C
2026-01-21 15:42 ` Shrikanth Hegde
2026-01-22 2:51 ` K Prateek Nayak
2026-02-05 16:53 ` Valentin Schneider
2026-01-20 11:32 ` [PATCH v3 2/8] sched/topology: Allocate per-CPU sched_domain_shared in s_data K Prateek Nayak
2026-01-21 15:17 ` Chen, Yu C
2026-02-05 16:53 ` Valentin Schneider
2026-01-20 11:32 ` [PATCH v3 3/8] sched/topology: Switch to assigning "sd->shared" from s_data K Prateek Nayak
2026-01-21 15:26 ` Chen, Yu C
2026-01-22 2:49 ` K Prateek Nayak
2026-01-22 8:12 ` Shrikanth Hegde
2026-01-22 8:36 ` K Prateek Nayak
2026-01-23 4:08 ` Shrikanth Hegde
2026-01-23 4:53 ` K Prateek Nayak
2026-02-05 16:53 ` Valentin Schneider
2026-02-06 5:20 ` K Prateek Nayak
2026-02-06 9:38 ` Valentin Schneider
2026-02-14 3:04 ` Chen, Yu C
2026-02-16 3:50 ` K Prateek Nayak [this message]
2026-02-14 2:59 ` Chen, Yu C
2026-01-20 11:32 ` [PATCH v3 4/8] sched/topology: Remove sched_domain_shared allocation with sd_data K Prateek Nayak
2026-02-05 16:53 ` Valentin Schneider
2026-01-20 11:32 ` [PATCH v3 5/8] sched/core: Check for rcu_read_lock_any_held() in idle_get_state() K Prateek Nayak
2026-01-20 11:32 ` [PATCH v3 6/8] sched/fair: Remove superfluous rcu_read_lock() in the wakeup path K Prateek Nayak
2026-01-20 11:32 ` [PATCH v3 7/8] sched/fair: Simplify the entry condition for update_idle_cpu_scan() K Prateek Nayak
2026-02-14 15:41 ` Chen, Yu C
2026-01-20 11:32 ` [PATCH v3 8/8] sched/fair: Simplify SIS_UTIL handling in select_idle_cpu() K Prateek Nayak
2026-01-23 6:06 ` Shrikanth Hegde
2026-01-23 6:27 ` K Prateek Nayak
2026-01-23 7:14 ` Shrikanth Hegde
2026-02-14 15:56 ` Chen, Yu C
2026-01-21 16:16 ` [PATCH v3 0/8] sched/topology: Optimize sd->shared allocation Peter Zijlstra
2026-01-22 2:56 ` K Prateek Nayak
2026-01-23 9:54 ` Peter Zijlstra
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