Ubuntu-focal-kernel/arch/csky
Eric W. Biederman 43cb57775a exit: Add and use make_task_dead.
BugLink: https://bugs.launchpad.net/bugs/2011226

commit 0e25498f8cd43c1b5aa327f373dd094e9a006da7 upstream.

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>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Luke Nowakowski-Krijger <luke.nowakowskikrijger@canonical.com>
Acked-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
2023-03-21 10:09:01 +01:00
..
abiv1 exit: Add and use make_task_dead. 2023-03-21 10:09:01 +01:00
abiv2 csky: Fixup abiv2 syscall_trace break a4 & a5 2020-08-08 01:53:12 -04:00
boot
configs
include csky: change a Kconfig symbol name to fix e1000 build error 2021-05-19 10:45:38 +02:00
kernel exit: Add and use make_task_dead. 2023-03-21 10:09:01 +01:00
lib csky: Fixup raw_copy_from_user() 2020-06-22 17:23:17 -03:00
mm csky: Fixup get wrong psr value from phyical reg 2020-05-25 10:41:24 +02:00
Kconfig csky: change a Kconfig symbol name to fix e1000 build error 2021-05-19 10:45:38 +02:00
Kconfig.debug
Makefile