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authorWu Zhangjin <wuzhangjin@gmail.com>2011-07-23 12:41:24 +0000
committerRalf Baechle <ralf@linux-mips.org>2011-09-21 17:52:09 +0200
commit4d85f6afa43d366868fdaa19595722309e4843f6 (patch)
tree8bbd598f03b9a0ef7cba24bb7a9dab23f78b490e /arch
parent49de830ad7b94d05f6dbfbae97a03f80169a7462 (diff)
MIPS: Make the die_lock be raw
On preempt-rt this lock needs to be raw, so it does not get converted to a sleeping spinlock. Trying to sleep in a panic is not really desireable. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2636/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/kernel/traps.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index b7517e3abc85..01eff7e609e8 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -364,7 +364,7 @@ static int regs_to_trapnr(struct pt_regs *regs)
return (regs->cp0_cause >> 2) & 0x1f;
}
-static DEFINE_SPINLOCK(die_lock);
+static DEFINE_RAW_SPINLOCK(die_lock);
void __noreturn die(const char *str, struct pt_regs *regs)
{
@@ -378,7 +378,7 @@ void __noreturn die(const char *str, struct pt_regs *regs)
sig = 0;
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);
@@ -387,7 +387,7 @@ void __noreturn die(const char *str, 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");