diff options
| author | Wu Zhangjin <wuzhangjin@gmail.com> | 2011-07-23 14:41:24 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2011-09-21 17:52:09 +0200 |
| commit | 4d85f6afa43d366868fdaa19595722309e4843f6 (patch) | |
| tree | 8bbd598f03b9a0ef7cba24bb7a9dab23f78b490e | |
| parent | MIPS: Ftrace: Fix the CONFIG_DYNAMIC_FTRACE=n compile (diff) | |
| download | linux-4d85f6afa43d366868fdaa19595722309e4843f6.tar.xz linux-4d85f6afa43d366868fdaa19595722309e4843f6.zip | |
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>
| -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 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"); |