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authorGlenn Elliott <gelliott@cs.unc.edu>2012-03-04 19:47:13 -0500
committerGlenn Elliott <gelliott@cs.unc.edu>2012-03-04 19:47:13 -0500
commitc71c03bda1e86c9d5198c5d83f712e695c4f2a1e (patch)
treeecb166cb3e2b7e2adb3b5e292245fefd23381ac8 /include/linux/tracehook.h
parentea53c912f8a86a8567697115b6a0d8152beee5c8 (diff)
parent6a00f206debf8a5c8899055726ad127dbeeed098 (diff)
Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp
Conflicts: litmus/sched_cedf.c
Diffstat (limited to 'include/linux/tracehook.h')
-rw-r--r--include/linux/tracehook.h33
1 files changed, 3 insertions, 30 deletions
diff --git a/include/linux/tracehook.h b/include/linux/tracehook.h
index 10db0102a890..e95f5236611f 100644
--- a/include/linux/tracehook.h
+++ b/include/linux/tracehook.h
@@ -150,7 +150,7 @@ static inline void tracehook_report_syscall_exit(struct pt_regs *regs, int step)
150 * 150 *
151 * Return %LSM_UNSAFE_* bits applied to an exec because of tracing. 151 * Return %LSM_UNSAFE_* bits applied to an exec because of tracing.
152 * 152 *
153 * @task->cred_guard_mutex is held by the caller through the do_execve(). 153 * @task->signal->cred_guard_mutex is held by the caller through the do_execve().
154 */ 154 */
155static inline int tracehook_unsafe_exec(struct task_struct *task) 155static inline int tracehook_unsafe_exec(struct task_struct *task)
156{ 156{
@@ -169,7 +169,7 @@ static inline int tracehook_unsafe_exec(struct task_struct *task)
169 * tracehook_tracer_task - return the task that is tracing the given task 169 * tracehook_tracer_task - return the task that is tracing the given task
170 * @tsk: task to consider 170 * @tsk: task to consider
171 * 171 *
172 * Returns NULL if noone is tracing @task, or the &struct task_struct 172 * Returns NULL if no one is tracing @task, or the &struct task_struct
173 * pointer to its tracer. 173 * pointer to its tracer.
174 * 174 *
175 * Must called under rcu_read_lock(). The pointer returned might be kept 175 * Must called under rcu_read_lock(). The pointer returned might be kept
@@ -448,7 +448,7 @@ static inline int tracehook_force_sigpending(void)
448 * 448 *
449 * Return zero to check for a real pending signal normally. 449 * Return zero to check for a real pending signal normally.
450 * Return -1 after releasing the siglock to repeat the check. 450 * Return -1 after releasing the siglock to repeat the check.
451 * Return a signal number to induce an artifical signal delivery, 451 * Return a signal number to induce an artificial signal delivery,
452 * setting *@info and *@return_ka to specify its details and behavior. 452 * setting *@info and *@return_ka to specify its details and behavior.
453 * 453 *
454 * The @return_ka->sa_handler value controls the disposition of the 454 * The @return_ka->sa_handler value controls the disposition of the
@@ -469,33 +469,6 @@ static inline int tracehook_get_signal(struct task_struct *task,
469} 469}
470 470
471/** 471/**
472 * tracehook_notify_jctl - report about job control stop/continue
473 * @notify: zero, %CLD_STOPPED or %CLD_CONTINUED
474 * @why: %CLD_STOPPED or %CLD_CONTINUED
475 *
476 * This is called when we might call do_notify_parent_cldstop().
477 *
478 * @notify is zero if we would not ordinarily send a %SIGCHLD,
479 * or is the %CLD_STOPPED or %CLD_CONTINUED .si_code for %SIGCHLD.
480 *
481 * @why is %CLD_STOPPED when about to stop for job control;
482 * we are already in %TASK_STOPPED state, about to call schedule().
483 * It might also be that we have just exited (check %PF_EXITING),
484 * but need to report that a group-wide stop is complete.
485 *
486 * @why is %CLD_CONTINUED when waking up after job control stop and
487 * ready to make a delayed @notify report.
488 *
489 * Return the %CLD_* value for %SIGCHLD, or zero to generate no signal.
490 *
491 * Called with the siglock held.
492 */
493static inline int tracehook_notify_jctl(int notify, int why)
494{
495 return notify ?: (current->ptrace & PT_PTRACED) ? why : 0;
496}
497
498/**
499 * tracehook_finish_jctl - report about return from job control stop 472 * tracehook_finish_jctl - report about return from job control stop
500 * 473 *
501 * This is called by do_signal_stop() after wakeup. 474 * This is called by do_signal_stop() after wakeup.