suse man page for user_enable_block_step

USER_ENABLE_BLOCK_ST(9) 					 Kernel Internals					   USER_ENABLE_BLOCK_ST(9)

NAME
       user_enable_block_step - step until branch in user-mode task

SYNOPSIS
       void user_enable_block_step(struct task_struct * task);

ARGUMENTS
       task
	   either current or a task stopped in TASK_TRACED

DESCRIPTION
       This can only be called when arch_has_block_step has returned nonzero, and will never be called when single-instruction stepping is being
       used. Set task so that when it returns to user mode, it will trap after the next branch or trap taken.

Kernel Hackers Manual 2.6.					     July 2010						   USER_ENABLE_BLOCK_ST(9)