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| author | Andi Kleen <ak@suse.de> | 2005-07-28 21:15:49 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-07-28 21:46:02 -0700 |
| commit | ed6b676ca8b50e0b538e61c283d52fd04f007abf (patch) | |
| tree | 753ea613ce334c41f835f6aac21074b137d24713 /include | |
| parent | 3829ee6b1be03d5aa3005fe7d19f30088b539836 (diff) | |
| download | lwn-ed6b676ca8b50e0b538e61c283d52fd04f007abf.tar.gz lwn-ed6b676ca8b50e0b538e61c283d52fd04f007abf.zip | |
[PATCH] x86_64: Switch to the interrupt stack when running a softirq in local_bh_enable()
This avoids some potential stack overflows with very deep softirq callchains.
i386 does this too.
TOADD CFI annotation
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-x86_64/irq.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-x86_64/irq.h b/include/asm-x86_64/irq.h index eb3b7aa9eb9f..4482657777bb 100644 --- a/include/asm-x86_64/irq.h +++ b/include/asm-x86_64/irq.h @@ -57,4 +57,6 @@ int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *); extern void fixup_irqs(cpumask_t map); #endif +#define __ARCH_HAS_DO_SOFTIRQ 1 + #endif /* _ASM_IRQ_H */ |