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authorAndreas Mohr <andi@rhlx01.fht-esslingen.de>2006-06-23 02:05:30 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-23 07:43:05 -0700
commit22722051fb6bcbb95c895e68dad10d34a9db7e4d (patch)
tree2f6e7a7888b4369cb2dd18be1cd4d3b18730280b
parent[PATCH] invert irq/migration.c brach prediction (diff)
downloadlinux-dev-22722051fb6bcbb95c895e68dad10d34a9db7e4d.tar.xz
linux-dev-22722051fb6bcbb95c895e68dad10d34a9db7e4d.zip
[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: 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>
-rw-r--r--arch/i386/kernel/irq.c4
-rw-r--r--arch/powerpc/kernel/irq.c4
2 files changed, 4 insertions, 4 deletions
diff --git a/arch/i386/kernel/irq.c b/arch/i386/kernel/irq.c
index f3a9c78c4a24..248e922ee13a 100644
--- a/arch/i386/kernel/irq.c
+++ b/arch/i386/kernel/irq.c
@@ -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
/*
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index bfcec4cc70a7..40d4c14fde8f 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -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)
{