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| author | Wu Zhangjin <wuzhangjin@gmail.com> | 2010-02-22 00:47:45 +0800 |
|---|---|---|
| committer | Wu Zhangjin <wuzhangjin@gmail.com> | 2010-03-10 04:38:45 +0800 |
| commit | f892b149b98479d18f78275a7cd36aaa8fb91c72 (patch) | |
| tree | 82360c626fbc7842d8c03d53fafb58efdab97640 | |
| parent | 7ac72cc54968c4820052f39de5b9b7891f625498 (diff) | |
| download | lwn-f892b149b98479d18f78275a7cd36aaa8fb91c72.tar.gz lwn-f892b149b98479d18f78275a7cd36aaa8fb91c72.zip | |
RT: MIPS: Make the die_lock be raw
Kernel is going to die, the lock must be raw to ensure nobody can
preempt it at this urgent time.
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
| -rw-r--r-- | arch/mips/kernel/traps.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 31b204b26ba0..de6d66a7575b 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -349,7 +349,7 @@ void show_registers(const struct pt_regs *regs) printk("\n"); } -static DEFINE_SPINLOCK(die_lock); +static DEFINE_RAW_SPINLOCK(die_lock); void __noreturn die(const char * str, const struct pt_regs * regs) { @@ -359,7 +359,7 @@ void __noreturn die(const char * str, const struct pt_regs * regs) #endif /* CONFIG_MIPS_MT_SMTC */ console_verbose(); - spin_lock_irq(&die_lock); + raw_spin_lock_irq(&die_lock); bust_spinlocks(1); #ifdef CONFIG_MIPS_MT_SMTC mips_mt_regdump(dvpret); @@ -367,7 +367,7 @@ void __noreturn die(const char * str, const struct pt_regs * regs) printk("%s[#%d]:\n", str, ++die_counter); show_registers(regs); add_taint(TAINT_DIE); - spin_unlock_irq(&die_lock); + raw_spin_unlock_irq(&die_lock); if (in_interrupt()) panic("Fatal exception in interrupt"); |