Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 09ee167c authored by David S. Miller's avatar David S. Miller
Browse files

sparc64: Hook up trigger_all_cpu_backtrace(). 



We already have code that does this, but it is only currently attached
to sysrq-'y'.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5afe2738

arch/sparc/include/asm/irq_64.h

+3 −0
Original line number Diff line number Diff line
@@ -90,4 +90,7 @@ static inline unsigned long get_softint(void) 
	return retval;

}



void __trigger_all_cpu_backtrace(void);

#define trigger_all_cpu_backtrace() __trigger_all_cpu_backtrace()



#endif

arch/sparc64/kernel/process.c

+8 −2
Original line number Diff line number Diff line
@@ -300,7 +300,6 @@ void show_regs(struct pt_regs *regs) 
#endif

}



#ifdef CONFIG_MAGIC_SYSRQ

struct global_reg_snapshot global_reg_snapshot[NR_CPUS];

static DEFINE_SPINLOCK(global_reg_snapshot_lock);
@@ -362,7 +361,7 @@ static void __global_reg_poll(struct global_reg_snapshot *gp) 
	}

}



static void sysrq_handle_globreg(int key, struct tty_struct *tty)

void __trigger_all_cpu_backtrace(void)

{

	struct thread_info *tp = current_thread_info();

	struct pt_regs *regs = get_irq_regs();
@@ -412,6 +411,13 @@ static void sysrq_handle_globreg(int key, struct tty_struct *tty) 
	spin_unlock_irqrestore(&global_reg_snapshot_lock, flags);

}



#ifdef CONFIG_MAGIC_SYSRQ



static void sysrq_handle_globreg(int key, struct tty_struct *tty)

{

	__trigger_all_cpu_backtrace();

}



static struct sysrq_key_op sparc_globalreg_op = {

	.handler	= sysrq_handle_globreg,

	.help_msg	= "Globalregs",