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Message-Id: <1234364503-857-4-git-send-email-matsu@igel.co.jp> Date: Thu, 12 Feb 2009 00:01:42 +0900 From: Katsuya Matsubara <matsu@...l.co.jp> To: linux-rt-users <linux-rt-users@...r.kernel.org> Cc: Steven Rostedt <srostedt@...hat.com>, Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>, Paul Mundt <lethal@...ux-sh.org>, LKML <linux-kernel@...r.kernel.org>, Katsuya Matsubara <matsu@...l.co.jp> Subject: [PATCH RT 3/4] sh: decouple the pagefault-disabled logic The preempt-rt patch adds a pagefault-disabled logic. We must not take page faults if pagefault_disabled > 0. The same treatment can be found in other arch code. Signed-off-by: Katsuya Matsubara <matsu@...l.co.jp> --- arch/sh/mm/fault_32.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/sh/mm/fault_32.c b/arch/sh/mm/fault_32.c index 898d477..2746b08 100644 --- a/arch/sh/mm/fault_32.c +++ b/arch/sh/mm/fault_32.c @@ -100,7 +100,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, * If we're in an interrupt or have no user * context, we must not take the fault.. */ - if (in_atomic() || !mm) + if (in_atomic() || !mm || current->pagefault_disabled) goto no_context; down_read(&mm->mmap_sem); -- 1.6.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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