Commit 2e1661d2 authored by Eric W. Biederman's avatar Eric W. Biederman
Browse files

signal: Remove the task parameter from force_sig_fault 



As synchronous exceptions really only make sense against the current
task (otherwise how are you synchronous) remove the task parameter
from from force_sig_fault to make it explicit that is what is going
on.

The two known exceptions that deliver a synchronous exception to a
stopped ptraced task have already been changed to
force_sig_fault_to_task.

The callers have been changed with the following emacs regular expression
(with obvious variations on the architectures that take more arguments)
to avoid typos:

force_sig_fault[(]\([^,]+\)[,]\([^,]+\)[,]\([^,]+\)[,]\W+current[)]
->
force_sig_fault(\1,\2,\3)

Signed-off-by: default avatar"Eric W. Biederman" <ebiederm@xmission.com>
parent 91ca180d

arch/alpha/kernel/traps.c

+1 −1
Original line number Diff line number Diff line
@@ -402,7 +402,7 @@ do_entDbg(struct pt_regs *regs) 
{

	die_if_kernel("Instruction fault", regs, 0, NULL);



	force_sig_fault(SIGILL, ILL_ILLOPC, (void __user *)regs->pc, 0, current);

	force_sig_fault(SIGILL, ILL_ILLOPC, (void __user *)regs->pc, 0);

}

arch/alpha/mm/fault.c

+2 −2
Original line number Diff line number Diff line
@@ -221,13 +221,13 @@ retry: 
	up_read(&mm->mmap_sem);

	/* Send a sigbus, regardless of whether we were in kernel

	   or user mode.  */

	force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *) address, 0, current);

	force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *) address, 0);

	if (!user_mode(regs))

		goto no_context;

	return;



 do_sigsegv:

	force_sig_fault(SIGSEGV, si_code, (void __user *) address, 0, current);

	force_sig_fault(SIGSEGV, si_code, (void __user *) address, 0);

	return;



#ifdef CONFIG_ALPHA_LARGE_VMALLOC

arch/arc/kernel/traps.c

+1 −1
Original line number Diff line number Diff line
@@ -50,7 +50,7 @@ unhandled_exception(const char *str, struct pt_regs *regs, 


		tsk->thread.fault_address = (__force unsigned int)addr;



		force_sig_fault(signo, si_code, addr, current);

		force_sig_fault(signo, si_code, addr);



	} else {

		/* If not due to copy_(to|from)_user, we are doomed */

arch/arc/mm/fault.c

+2 −2
Original line number Diff line number Diff line
@@ -202,7 +202,7 @@ bad_area_nosemaphore: 
	/* User mode accesses just cause a SIGSEGV */

	if (user_mode(regs)) {

		tsk->thread.fault_address = address;

		force_sig_fault(SIGSEGV, si_code, (void __user *)address, current);

		force_sig_fault(SIGSEGV, si_code, (void __user *)address);

		return;

	}
@@ -237,5 +237,5 @@ do_sigbus: 
		goto no_context;



	tsk->thread.fault_address = address;

	force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *)address, current);

	force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *)address);

}

arch/arm/kernel/ptrace.c

+1 −1
Original line number Diff line number Diff line
@@ -204,7 +204,7 @@ void ptrace_disable(struct task_struct *child) 
void ptrace_break(struct pt_regs *regs)

{

	force_sig_fault(SIGTRAP, TRAP_BRKPT,

			(void __user *)instruction_pointer(regs), current);

			(void __user *)instruction_pointer(regs));

}



static int break_trap(struct pt_regs *regs, unsigned int instr)

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