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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-16 15:17:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-16 15:17:40 -0700 |
| commit | e533b227055598b1f7dc8503a3b4f36b14b9da8a (patch) | |
| tree | 28fec4125eac45c8e2fac75b3d10ff5cd987d2f6 /kernel/softirq.c | |
| parent | 0999d978dcdcf59350dafa25afd70def9f924eee (diff) | |
| parent | 6b2ada82101a08e2830fb29d7dc9b858be637dd4 (diff) | |
Merge branch 'core-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
do_generic_file_read: s/EINTR/EIO/ if lock_page_killable() fails
softirq, warning fix: correct a format to avoid a warning
softirqs, debug: preemption check
x86, pci-hotplug, calgary / rio: fix EBDA ioremap()
IO resources, x86: ioremap sanity check to catch mapping requests exceeding, fix
IO resources, x86: ioremap sanity check to catch mapping requests exceeding the BAR sizes
softlockup: Documentation/sysctl/kernel.txt: fix softlockup_thresh description
dmi scan: warn about too early calls to dmi_check_system()
generic: redefine resource_size_t as phys_addr_t
generic: make PFN_PHYS explicitly return phys_addr_t
generic: add phys_addr_t for holding physical addresses
softirq: allocate less vectors
IO resources: fix/remove printk
printk: robustify printk, update comment
printk: robustify printk, fix #2
printk: robustify printk, fix
printk: robustify printk
Fixed up conflicts in:
arch/powerpc/include/asm/types.h
arch/powerpc/platforms/Kconfig.cputype
manually.
Diffstat (limited to 'kernel/softirq.c')
| -rw-r--r-- | kernel/softirq.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/kernel/softirq.c b/kernel/softirq.c index c506f266a6b..be7a8292f99 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -46,7 +46,7 @@ irq_cpustat_t irq_stat[NR_CPUS] ____cacheline_aligned; EXPORT_SYMBOL(irq_stat); #endif -static struct softirq_action softirq_vec[32] __cacheline_aligned_in_smp; +static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp; static DEFINE_PER_CPU(struct task_struct *, ksoftirqd); @@ -205,7 +205,18 @@ restart: do { if (pending & 1) { + int prev_count = preempt_count(); + h->action(h); + + if (unlikely(prev_count != preempt_count())) { + printk(KERN_ERR "huh, entered softirq %d %p" + "with preempt_count %08x," + " exited with %08x?\n", h - softirq_vec, + h->action, prev_count, preempt_count()); + preempt_count() = prev_count; + } + rcu_bh_qsctr_inc(cpu); } h++; |