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/mm_hooks.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 include/asm-generic/mm_hooks.h (limited to 'include/asm-generic/mm_hooks.h') diff --git a/include/asm-generic/mm_hooks.h b/include/asm-generic/mm_hooks.h new file mode 100644 index 000000000..6eea3b3c1 --- /dev/null +++ b/include/asm-generic/mm_hooks.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Define generic no-op hooks for arch_dup_mmap and arch_exit_mmap + * to be included in asm-FOO/mmu_context.h for any arch FOO which + * doesn't need to hook these. + */ +#ifndef _ASM_GENERIC_MM_HOOKS_H +#define _ASM_GENERIC_MM_HOOKS_H + +static inline int arch_dup_mmap(struct mm_struct *oldmm, + struct mm_struct *mm) +{ + return 0; +} + +static inline void arch_exit_mmap(struct mm_struct *mm) +{ +} + +static inline bool arch_vma_access_permitted(struct vm_area_struct *vma, + bool write, bool execute, bool foreign) +{ + /* by default, allow everything */ + return true; +} +#endif /* _ASM_GENERIC_MM_HOOKS_H */ -- cgit v1.3.1