Messages in this thread Patch in this message |  | | | Date | Fri, 12 Mar 2010 09:54:58 GMT | | From | tip-bot for Jack Steiner <> | | Subject | [tip:x86/urgent] x86, UV: Fix target_cpus() in x2apic_uv_x.c |
| |
Commit-ID: 8447b360a3897bdfb0677107564d1dd9ab6e63be Gitweb: http://git.kernel.org/tip/8447b360a3897bdfb0677107564d1dd9ab6e63be Author: Jack Steiner <steiner@sgi.com> AuthorDate: Thu, 11 Mar 2010 12:43:29 -0600 Committer: Ingo Molnar <mingo@elte.hu> CommitDate: Fri, 12 Mar 2010 10:19:29 +0100
x86, UV: Fix target_cpus() in x2apic_uv_x.c
target_cpu() should initially target all cpus, not just cpu 0. Otherwise systems with lots of disks can exhaust the interrupt vectors on cpu 0 if a large number of disks are discovered before the irq balancer is running.
Note: UV code only...
Signed-off-by: Jack Steiner <steiner@sgi.com> LKML-Reference: <20100311184328.GA21433@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- arch/x86/kernel/apic/x2apic_uv_x.c | 4 +--- 1 files changed, 1 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index 21db3cb..af0ca80 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -114,11 +114,9 @@ EXPORT_SYMBOL_GPL(uv_possible_blades); unsigned long sn_rtc_cycles_per_second; EXPORT_SYMBOL(sn_rtc_cycles_per_second); -/* Start with all IRQs pointing to boot CPU. IRQ balancing will shift them. */ - static const struct cpumask *uv_target_cpus(void) { - return cpumask_of(0); + return cpu_online_mask; } static void uv_vector_allocation_domain(int cpu, struct cpumask *retmask)
|  |