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[PATCH] Replace local_save_flags+local_irq_disable with

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The combination of "local_save_flags" and "local_irq_disable" seems to be
equivalent to "local_irq_save" (see code snips below). Consequently, replace
occurrences of local_save_flags+local_irq_disable with local_irq_save.

* local_irq_save
#define raw_local_irq_save(flags) \
                do { (flags) = __raw_local_irq_save(); } while (0)

static inline unsigned long __raw_local_irq_save(void)
{
        unsigned long flags = __raw_local_save_flags();

        raw_local_irq_disable();

        return flags;
}

* local_save_flags
#define raw_local_save_flags(flags) \
                do { (flags) = __raw_local_save_flags(); } while (0)

Signed-off-by: Fernando Vazquez <fernando@intellilink.co.jp>
Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
Fernando Luis Vzquez Cao 2006-09-26 10:52:33 +02:00 committed by Andi Kleen
parent 52d522f53f
commit 2b94ab2fd5
2 changed files with 2 additions and 4 deletions
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3
arch/x86_64/kernel/apic.c
View File

@ -468,8 +468,7 @@ static int lapic_suspend(struct sys_device *dev, pm_message_t state)
apic_pm_state.apic_tmict = apic_read(APIC_TMICT);
apic_pm_state.apic_tdcr = apic_read(APIC_TDCR);
apic_pm_state.apic_thmr = apic_read(APIC_LVTTHMR);
local_save_flags(flags);
local_irq_disable();
local_irq_save(flags);
disable_local_APIC();
local_irq_restore(flags);
return 0;

3
arch/x86_64/kernel/genapic_flat.c
View File

@ -49,8 +49,7 @@ static void flat_send_IPI_mask(cpumask_t cpumask, int vector)
unsigned long cfg;
unsigned long flags;
local_save_flags(flags);
local_irq_disable();
local_irq_save(flags);
/*
* Wait for idle.