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| author | Paul Mundt <lethal@linux-sh.org> | 2009-03-10 15:17:26 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-03-10 15:17:26 +0900 |
| commit | e161183ba674f97fce748384f5bb037d07bdc5c9 (patch) | |
| tree | 5b3bd4b995f6435ee977b71082244fa1a647f717 /arch/x86/kernel/traps.c | |
| parent | 2ef7f0dab6b3d171b6aff00a47077385ae3155b5 (diff) | |
| parent | 99adcd9d67aaf04e28f5ae96df280f236bde4b66 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/x86/kernel/traps.c')
| -rw-r--r-- | arch/x86/kernel/traps.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index 7932338d7cb..a9e7548e179 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -99,6 +99,12 @@ static inline void preempt_conditional_sti(struct pt_regs *regs) local_irq_enable(); } +static inline void conditional_cli(struct pt_regs *regs) +{ + if (regs->flags & X86_EFLAGS_IF) + local_irq_disable(); +} + static inline void preempt_conditional_cli(struct pt_regs *regs) { if (regs->flags & X86_EFLAGS_IF) @@ -626,8 +632,10 @@ clear_dr7: #ifdef CONFIG_X86_32 debug_vm86: + /* reenable preemption: handle_vm86_trap() might sleep */ + dec_preempt_count(); handle_vm86_trap((struct kernel_vm86_regs *) regs, error_code, 1); - preempt_conditional_cli(regs); + conditional_cli(regs); return; #endif |