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author | 2021-06-28 14:52:01 -0500 | |
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committer | 2021-12-13 12:04:45 -0600 | |
commit | 0e25498f8cd43c1b5aa327f373dd094e9a006da7 (patch) | |
tree | f9f4cf6d7c1deccaa34ad6f7af345bff52b63c12 /init | |
parent | exit/s390: Remove dead reference to do_exit from copy_thread (diff) | |
download | linux-dev-0e25498f8cd43c1b5aa327f373dd094e9a006da7.tar.xz linux-dev-0e25498f8cd43c1b5aa327f373dd094e9a006da7.zip |
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 'init')
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