From aeb709c767aeca996e6011133e4f7bdb2a4af652 Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Wed, 30 Sep 2026 09:59:20 +0000 Subject: selftests/bpf: Add a test for objects stuck in free_by_rcu_ttrace Delete all elements of BPF_F_NO_PREALLOC hash map in one batch. The first free_bulk() starts RCU tasks trace GP and the rest of the elements are freed while it's in flight. Wait for call_rcu_ttrace_in_progress to clear in bpf_mem_cache of every cpu and check that free_by_rcu_ttrace and waiting_for_gp_ttrace lists are empty. Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20260930095920.601738-4-alexei.starovoitov@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi --- include/asm-generic/irqflags.h | 67 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 include/asm-generic/irqflags.h (limited to 'include/asm-generic/irqflags.h') diff --git a/include/asm-generic/irqflags.h b/include/asm-generic/irqflags.h new file mode 100644 index 000000000..19ccbf483 --- /dev/null +++ b/include/asm-generic/irqflags.h @@ -0,0 +1,67 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_GENERIC_IRQFLAGS_H +#define __ASM_GENERIC_IRQFLAGS_H + +/* + * All architectures should implement at least the first two functions, + * usually inline assembly will be the best way. + */ +#ifndef ARCH_IRQ_DISABLED +#define ARCH_IRQ_DISABLED 0 +#define ARCH_IRQ_ENABLED 1 +#endif + +/* read interrupt enabled status */ +#ifndef arch_local_save_flags +unsigned long arch_local_save_flags(void); +#endif + +/* set interrupt enabled status */ +#ifndef arch_local_irq_restore +void arch_local_irq_restore(unsigned long flags); +#endif + +/* get status and disable interrupts */ +#ifndef arch_local_irq_save +static inline unsigned long arch_local_irq_save(void) +{ + unsigned long flags; + flags = arch_local_save_flags(); + arch_local_irq_restore(ARCH_IRQ_DISABLED); + return flags; +} +#endif + +/* test flags */ +#ifndef arch_irqs_disabled_flags +static inline int arch_irqs_disabled_flags(unsigned long flags) +{ + return flags == ARCH_IRQ_DISABLED; +} +#endif + +/* unconditionally enable interrupts */ +#ifndef arch_local_irq_enable +static inline void arch_local_irq_enable(void) +{ + arch_local_irq_restore(ARCH_IRQ_ENABLED); +} +#endif + +/* unconditionally disable interrupts */ +#ifndef arch_local_irq_disable +static inline void arch_local_irq_disable(void) +{ + arch_local_irq_restore(ARCH_IRQ_DISABLED); +} +#endif + +/* test hardware interrupt enable bit */ +#ifndef arch_irqs_disabled +static inline int arch_irqs_disabled(void) +{ + return arch_irqs_disabled_flags(arch_local_save_flags()); +} +#endif + +#endif /* __ASM_GENERIC_IRQFLAGS_H */ -- cgit v1.3.1