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| author | David Woodhouse <dwmw2@infradead.org> | 2006-06-26 17:35:44 +0200 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2006-06-26 17:35:44 +0200 |
| commit | 62ed948cb1405fe95d61d8c6445c102e0c9da0a6 (patch) | |
| tree | f139adcc861a05e7cc09cdb387a271a652fc2d07 /arch/i386/kernel/irq.c | |
| parent | [MTD] Initialize 'writesize' (diff) | |
| parent | [PATCH] uclinux: use PER_LINUX_32BIT in binfmt_flat (diff) | |
| download | linux-62ed948cb1405fe95d61d8c6445c102e0c9da0a6.tar.xz linux-62ed948cb1405fe95d61d8c6445c102e0c9da0a6.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/i386/kernel/irq.c')
| -rw-r--r-- | arch/i386/kernel/irq.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/i386/kernel/irq.c b/arch/i386/kernel/irq.c index f3a9c78c4a24..49ce4c31b713 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 /* @@ -95,6 +95,14 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs) irqctx->tinfo.task = curctx->tinfo.task; irqctx->tinfo.previous_esp = current_stack_pointer; + /* + * Copy the softirq bits in preempt_count so that the + * softirq checks work in the hardirq context. + */ + irqctx->tinfo.preempt_count = + irqctx->tinfo.preempt_count & ~SOFTIRQ_MASK | + curctx->tinfo.preempt_count & SOFTIRQ_MASK; + asm volatile( " xchgl %%ebx,%%esp \n" " call __do_IRQ \n" |