linux-kernel - [PATCH 0/3] smp: Avoid memory allocation in on_each_cpu

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Message-Id: <20200117090137.1205765-1-bigeasy@linutronix.de>
Date:   Fri, 17 Jan 2020 10:01:34 +0100
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     linux-kernel@...r.kernel.org
Cc:     Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>
Subject: [PATCH 0/3] smp: Avoid memory allocation in on_each_cpu_cond()

x86 is using on_each_cpu_cond_mask() in native_flush_tlb_others() in a
preempt disabled section. The memory allocation in
on_each_cpu_cond_mask() gives me a headache on RT.
This is an attempt to get rid of the memory allocation and potentially
accelerating the code path :)

Sebastian