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[PATCH] x86/powerpc make hardirq_ctx and softirq_ctx __read_mostly
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The hardirq_ctx and softirq_ctx variables are written to on init only,

Signed-off-by: Andreas Mohr <andi@lisas.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andreas Mohr authored and Linus Torvalds committed Jun 23, 2006
1 parent 89d0cf0 commit 2272205
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Showing 2 changed files with 4 additions and 4 deletions.
4 changes: 2 additions & 2 deletions arch/i386/kernel/irq.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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

/*
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4 changes: 2 additions & 2 deletions arch/powerpc/kernel/irq.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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)
{
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