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author | Eric W. Biederman <ebiederm@xmission.com> | 2023-02-03 03:27:05 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-06 09:49:45 +0300 |
commit | 7d5de91a9ae564c7b5869310192ab6cb72ea4c6b (patch) | |
tree | 8791cd8981dfe4ba6bef5b09b11d44b2a3ea6335 /arch/powerpc | |
parent | dd8cccab31e6255cb49a73e5c2e019cac7fb2eac (diff) | |
download | linux-7d5de91a9ae564c7b5869310192ab6cb72ea4c6b.tar.xz |
exit: Add and use make_task_dead.
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r-- | arch/powerpc/kernel/traps.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 2379c4bf3979..63c751ce130a 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -251,7 +251,7 @@ static void oops_end(unsigned long flags, struct pt_regs *regs, panic("Fatal exception in interrupt"); if (panic_on_oops) panic("Fatal exception"); - do_exit(signr); + make_task_dead(signr); } NOKPROBE_SYMBOL(oops_end); |