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| author | Thomas Gleixner <tglx@linutronix.de> | 2015-12-31 19:30:53 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-01-15 15:44:01 +0300 |
| commit | 90a2282e23f0522e4b3f797ad447c5e91bf7fe32 (patch) | |
| tree | 8038e0e6ce97abe95d108b29c7f0d0fb25aac172 /arch/x86/kernel/apic | |
| parent | 56d7d2f4bbd00fb198b7907cb3ab657d06115a42 (diff) | |
| download | linux-90a2282e23f0522e4b3f797ad447c5e91bf7fe32.tar.xz | |
x86/irq: Call irq_force_move_complete with irq descriptor
First of all there is no point in looking up the irq descriptor again, but we
also need the descriptor for the final cleanup race fix in the next
patch. Make that change seperate. No functional difference.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Borislav Petkov <bp@alien8.de>
Tested-by: Joe Lawrence <joe.lawrence@stratus.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Jeremiah Mahler <jmmahler@gmail.com>
Cc: andy.shevchenko@gmail.com
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org #4.3+
Link: http://lkml.kernel.org/r/20151231160107.125211743@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/apic')
| -rw-r--r-- | arch/x86/kernel/apic/vector.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index a7fa11e49582..5f7883578880 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -630,10 +630,14 @@ void irq_complete_move(struct irq_cfg *cfg) __irq_complete_move(cfg, ~get_irq_regs()->orig_ax); } -void irq_force_complete_move(int irq) +/* + * Called with @desc->lock held and interrupts disabled. + */ +void irq_force_complete_move(struct irq_desc *desc) { - struct irq_cfg *cfg = irq_cfg(irq); - struct apic_chip_data *data; + struct irq_data *irqdata = irq_desc_get_irq_data(desc); + struct apic_chip_data *data = apic_chip_data(irqdata); + struct irq_cfg *cfg = data ? &data->cfg : NULL; if (!cfg) return; @@ -647,7 +651,6 @@ void irq_force_complete_move(int irq) * the way out. */ raw_spin_lock(&vector_lock); - data = container_of(cfg, struct apic_chip_data, cfg); cpumask_clear_cpu(smp_processor_id(), data->old_domain); raw_spin_unlock(&vector_lock); } |