30 lines
911 B
Diff
30 lines
911 B
Diff
Subject: x86: kprobes: Remove remove bogus preempt_enable
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Thu, 17 Mar 2011 11:02:15 +0100
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The CONFIG_PREEMPT=n section of setup_singlestep() contains:
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preempt_enable_no_resched();
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That's bogus as it is asymetric - no preempt_disable() - and it just
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never blew up because preempt_enable_no_resched() is a NOP when
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CONFIG_PREEMPT=n. Remove it.
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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arch/x86/kernel/kprobes.c | 1 -
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1 file changed, 1 deletion(-)
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Index: linux-stable/arch/x86/kernel/kprobes.c
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===================================================================
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--- linux-stable.orig/arch/x86/kernel/kprobes.c
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+++ linux-stable/arch/x86/kernel/kprobes.c
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@@ -486,7 +486,6 @@ setup_singlestep(struct kprobe *p, struc
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* stepping.
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*/
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regs->ip = (unsigned long)p->ainsn.insn;
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- preempt_enable_no_resched();
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return;
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}
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#endif
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