From a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656 Mon Sep 17 00:00:00 2001 From: Breno Leitao Date: Wed, 5 Aug 2026 07:52:36 -0700 Subject: workqueue: skip the node_nr_active update for non-unbound workqueues apply_wqattrs_commit() updates node_nr_active->max unconditionally. wq->node_nr_active[] is only allocated for unbound workqueues, so guard the call before per-cpu workqueues start using this path. No functional change: only unbound workqueues reach apply_wqattrs_*() today. Signed-off-by: Breno Leitao Signed-off-by: Tejun Heo --- include/asm-generic/irq_regs.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 include/asm-generic/irq_regs.h (limited to 'include/asm-generic/irq_regs.h') diff --git a/include/asm-generic/irq_regs.h b/include/asm-generic/irq_regs.h new file mode 100644 index 000000000..2e7c6e89d --- /dev/null +++ b/include/asm-generic/irq_regs.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* Fallback per-CPU frame pointer holder + * + * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + */ + +#ifndef _ASM_GENERIC_IRQ_REGS_H +#define _ASM_GENERIC_IRQ_REGS_H + +#include + +/* + * Per-cpu current frame pointer - the location of the last exception frame on + * the stack + */ +DECLARE_PER_CPU(struct pt_regs *, __irq_regs); + +static inline struct pt_regs *get_irq_regs(void) +{ + return __this_cpu_read(__irq_regs); +} + +static inline struct pt_regs *set_irq_regs(struct pt_regs *new_regs) +{ + struct pt_regs *old_regs; + + old_regs = __this_cpu_read(__irq_regs); + __this_cpu_write(__irq_regs, new_regs); + return old_regs; +} + +#endif /* _ASM_GENERIC_IRQ_REGS_H */ -- cgit v1.3.1