x86/percpu semantics and fixes
From: | Peter Zijlstra <peterz-AT-infradead.org> | |
To: | torvalds-AT-linux-foundation.org, mingo-AT-kernel.org, bp-AT-alien8.de, tglx-AT-linutronix.de, luto-AT-kernel.org, namit-AT-vmware.com, peterz-AT-infradead.org | |
Subject: | [PATCH 0/5] x86/percpu semantics and fixes | |
Date: | Wed, 27 Feb 2019 11:12:52 +0100 | |
Message-ID: | <20190227101252.413192716@infradead.org> | |
Cc: | linux-kernel-AT-vger.kernel.org | |
Archive-link: | Article |
Hi all, This is a collection of x86/percpu changes that I had pending and got reminded of by Linus' comment yesterday about __this_cpu_xchg(). This tidies up the x86/percpu primitives and fixes a bunch of 'fallout'. Built and boot tested with CONFIG_DEBUG_PREEMPT=y. --- arch/x86/include/asm/irq_regs.h | 4 +- arch/x86/include/asm/percpu.h | 236 +++++++++++++++++++++------------------- arch/x86/include/asm/smp.h | 3 +- arch/x86/mm/tlb.c | 62 +++++------ include/linux/smp.h | 45 +++++--- kernel/sched/fair.c | 5 +- 6 files changed, 193 insertions(+), 162 deletions(-)