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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-02 11:44:09 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-02 11:44:09 -0800 |
commit | b840d79631c882786925303c2b0f4fefc31845ed (patch) | |
tree | cda60a95d4507fe1321fc285af38982d7eb9693b /drivers/lguest/interrupts_and_traps.c | |
parent | 597b0d21626da4e6f09f132442caf0cc2b0eb47c (diff) | |
parent | c3d80000e3a812fe5a200d6bde755fbd7fa65481 (diff) |
Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (66 commits)
x86: export vector_used_by_percpu_irq
x86: use logical apicid in x2apic_cluster's x2apic_cpu_mask_to_apicid_and()
sched: nominate preferred wakeup cpu, fix
x86: fix lguest used_vectors breakage, -v2
x86: fix warning in arch/x86/kernel/io_apic.c
sched: fix warning in kernel/sched.c
sched: move test_sd_parent() to an SMP section of sched.h
sched: add SD_BALANCE_NEWIDLE at MC and CPU level for sched_mc>0
sched: activate active load balancing in new idle cpus
sched: bias task wakeups to preferred semi-idle packages
sched: nominate preferred wakeup cpu
sched: favour lower logical cpu number for sched_mc balance
sched: framework for sched_mc/smt_power_savings=N
sched: convert BALANCE_FOR_xx_POWER to inline functions
x86: use possible_cpus=NUM to extend the possible cpus allowed
x86: fix cpu_mask_to_apicid_and to include cpu_online_mask
x86: update io_apic.c to the new cpumask code
x86: Introduce topology_core_cpumask()/topology_thread_cpumask()
x86: xen: use smp_call_function_many()
x86: use work_on_cpu in x86/kernel/cpu/mcheck/mce_amd_64.c
...
Fixed up trivial conflict in kernel/time/tick-sched.c manually
Diffstat (limited to 'drivers/lguest/interrupts_and_traps.c')
-rw-r--r-- | drivers/lguest/interrupts_and_traps.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/lguest/interrupts_and_traps.c b/drivers/lguest/interrupts_and_traps.c index a1039068f95..415fab0125a 100644 --- a/drivers/lguest/interrupts_and_traps.c +++ b/drivers/lguest/interrupts_and_traps.c @@ -222,11 +222,16 @@ bool check_syscall_vector(struct lguest *lg) int init_interrupts(void) { /* If they want some strange system call vector, reserve it now */ - if (syscall_vector != SYSCALL_VECTOR - && test_and_set_bit(syscall_vector, used_vectors)) { - printk("lg: couldn't reserve syscall %u\n", syscall_vector); - return -EBUSY; + if (syscall_vector != SYSCALL_VECTOR) { + if (test_bit(syscall_vector, used_vectors) || + vector_used_by_percpu_irq(syscall_vector)) { + printk(KERN_ERR "lg: couldn't reserve syscall %u\n", + syscall_vector); + return -EBUSY; + } + set_bit(syscall_vector, used_vectors); } + return 0; } |