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| author | Breno Leitao <leitao@debian.org> | 2026-08-05 07:52:36 -0700 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2026-08-10 11:47:20 -1000 |
| commit | a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656 (patch) | |
| tree | 39f5b258386e1127d253d293194e9a2991bf3c34 /lib/irq_regs.c | |
| download | linux-stable-a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656.tar.gz linux-stable-a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656.zip | |
workqueue: skip the node_nr_active update for non-unbound workqueuesgrafted
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 <leitao@debian.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'lib/irq_regs.c')
| -rw-r--r-- | lib/irq_regs.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/lib/irq_regs.c b/lib/irq_regs.c new file mode 100644 index 000000000..0d545a930 --- /dev/null +++ b/lib/irq_regs.c @@ -0,0 +1,14 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* saved per-CPU IRQ register pointer + * + * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + */ +#include <linux/export.h> +#include <linux/percpu.h> +#include <asm/irq_regs.h> + +#ifndef ARCH_HAS_OWN_IRQ_REGS +DEFINE_PER_CPU(struct pt_regs *, __irq_regs); +EXPORT_PER_CPU_SYMBOL(__irq_regs); +#endif |