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author | Eric W. Biederman <ebiederm@xmission.com> | 2021-06-28 22:52:01 +0300 |
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committer | Eric W. Biederman <ebiederm@xmission.com> | 2021-12-13 21:04:45 +0300 |
commit | 0e25498f8cd43c1b5aa327f373dd094e9a006da7 (patch) | |
tree | f9f4cf6d7c1deccaa34ad6f7af345bff52b63c12 /include | |
parent | 5e354747b2c91f64544b97760d38e2d3280307b2 (diff) | |
download | linux-0e25498f8cd43c1b5aa327f373dd094e9a006da7.tar.xz |
exit: Add and use make_task_dead.
There are two big uses of do_exit. The first is it's design use to be
the guts of the exit(2) system call. The second use is to terminate
a task after something catastrophic has happened like a NULL pointer
in kernel code.
Add a function make_task_dead that is initialy exactly the same as
do_exit to cover the cases where do_exit is called to handle
catastrophic failure. In time this can probably be reduced to just a
light wrapper around do_task_dead. For now keep it exactly the same so
that there will be no behavioral differences introducing this new
concept.
Replace all of the uses of do_exit that use it for catastraphic
task cleanup with make_task_dead to make it clear what the code
is doing.
As part of this rename rewind_stack_do_exit
rewind_stack_and_make_dead.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/sched/task.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h index ba88a6987400..2d4bbd9c3278 100644 --- a/include/linux/sched/task.h +++ b/include/linux/sched/task.h @@ -59,6 +59,7 @@ extern void sched_post_fork(struct task_struct *p, extern void sched_dead(struct task_struct *p); void __noreturn do_task_dead(void); +void __noreturn make_task_dead(int signr); extern void proc_caches_init(void); |