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Commit 373d4d09 authored by Rusty Russell's avatar Rusty Russell
Browse files

taint: add explicit flag to show whether lock dep is still OK. 



Fix up all callers as they were before, with make one change: an
unsigned module taints the kernel, but doesn't turn off lockdep.

Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
parent 64748a2c

arch/alpha/kernel/traps.c

+1 −1
Original line number Diff line number Diff line
@@ -186,7 +186,7 @@ die_if_kernel(char * str, struct pt_regs *regs, long err, unsigned long *r9_15) 
#endif

	printk("%s(%d): %s %ld\n", current->comm, task_pid_nr(current), str, err);

	dik_show_regs(regs, r9_15);

	add_taint(TAINT_DIE);

	add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);

	dik_show_trace((unsigned long *)(regs+1));

	dik_show_code((unsigned int *)regs->pc);

arch/arm/kernel/traps.c

+1 −1
Original line number Diff line number Diff line
@@ -296,7 +296,7 @@ static void oops_end(unsigned long flags, struct pt_regs *regs, int signr) 


	bust_spinlocks(0);

	die_owner = -1;

	add_taint(TAINT_DIE);

	add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);

	die_nest_count--;

	if (!die_nest_count)

		/* Nest count reaches zero, release the lock. */

arch/arm64/kernel/traps.c

+1 −1
Original line number Diff line number Diff line
@@ -242,7 +242,7 @@ void die(const char *str, struct pt_regs *regs, int err) 
		crash_kexec(regs);



	bust_spinlocks(0);

	add_taint(TAINT_DIE);

	add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);

	raw_spin_unlock_irq(&die_lock);

	oops_exit();

arch/avr32/kernel/traps.c

+1 −1
Original line number Diff line number Diff line
@@ -61,7 +61,7 @@ void die(const char *str, struct pt_regs *regs, long err) 
	show_regs_log_lvl(regs, KERN_EMERG);

	show_stack_log_lvl(current, regs->sp, regs, KERN_EMERG);

	bust_spinlocks(0);

	add_taint(TAINT_DIE);

	add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);

	spin_unlock_irq(&die_lock);



	if (in_interrupt())

arch/hexagon/kernel/traps.c

+1 −1
Original line number Diff line number Diff line
@@ -225,7 +225,7 @@ int die(const char *str, struct pt_regs *regs, long err) 
	do_show_stack(current, &regs->r30, pt_elr(regs));



	bust_spinlocks(0);

	add_taint(TAINT_DIE);

	add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);



	spin_unlock_irq(&die.lock);