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Commit 22722051 authored by Andreas Mohr's avatar Andreas Mohr Committed by Linus Torvalds
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[PATCH] x86/powerpc make hardirq_ctx and softirq_ctx __read_mostly 



The hardirq_ctx and softirq_ctx variables are written to on init only,

Signed-off-by: default avatarAndreas Mohr <andi@lisas.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 89d0cf01

arch/i386/kernel/irq.c

+2 −2
Original line number Diff line number Diff line
@@ -42,8 +42,8 @@ union irq_ctx { 
	u32                     stack[THREAD_SIZE/sizeof(u32)];

};



static union irq_ctx *hardirq_ctx[NR_CPUS];

static union irq_ctx *softirq_ctx[NR_CPUS];

static union irq_ctx *hardirq_ctx[NR_CPUS] __read_mostly;

static union irq_ctx *softirq_ctx[NR_CPUS] __read_mostly;

#endif



/*

arch/powerpc/kernel/irq.c

+2 −2
Original line number Diff line number Diff line
@@ -380,8 +380,8 @@ unsigned int real_irq_to_virt_slowpath(unsigned int real_irq) 
#endif /* CONFIG_PPC64 */



#ifdef CONFIG_IRQSTACKS

struct thread_info *softirq_ctx[NR_CPUS];

struct thread_info *hardirq_ctx[NR_CPUS];

struct thread_info *softirq_ctx[NR_CPUS] __read_mostly;

struct thread_info *hardirq_ctx[NR_CPUS] __read_mostly;



void irq_ctx_init(void)

{