lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ARM: SMP: remove IRQ-disabling for smp_cross_call()

Browse Source 
As we've now removed the spinlock and bitmask, we have nothing left
which requires interrupts to be disabled when sending an IPI.  All
current IPI-sending implementations use the GIC, which also does not
require interrupts disabled when calling gic_raise_softirq().

Remove the now unnecessary IRQ disable.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2010-12-02 19:16:56 +00:00
parent 24480d980e
commit 0df7095205
1 changed files with 0 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
arch/arm/kernel/smp.c
View File

@@ -383,16 +383,10 @@ void __init smp_prepare_boot_cpu(void)
static void send_ipi_message(const struct cpumask *mask, enum ipi_msg_type msg) static void send_ipi_message(const struct cpumask *mask, enum ipi_msg_type msg)
{ {
unsigned long flags;
local_irq_save(flags);
/* /*
* Call the platform specific cross-CPU call function. * Call the platform specific cross-CPU call function.
*/ */
smp_cross_call(mask, msg); smp_cross_call(mask, msg);
local_irq_restore(flags);
} }
void arch_send_call_function_ipi_mask(const struct cpumask *mask) void arch_send_call_function_ipi_mask(const struct cpumask *mask)