diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2023-01-24 22:29:50 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-01 10:23:19 +0300 |
| commit | d9c740c765e5b5d27bc6e7a500430a9bd4e14e75 (patch) | |
| tree | 25c2a8487942b766281d25ed2de9cb666fe77dd4 /arch/h8300 | |
| parent | 715a63588f5602eae9ee7699ad83863cb500a019 (diff) | |
| download | linux-d9c740c765e5b5d27bc6e7a500430a9bd4e14e75.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: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/h8300')
| -rw-r--r-- | arch/h8300/kernel/traps.c | 2 | ||||
| -rw-r--r-- | arch/h8300/mm/fault.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/h8300/kernel/traps.c b/arch/h8300/kernel/traps.c index 5d8b969cd8f3..2b1366c958e3 100644 --- a/arch/h8300/kernel/traps.c +++ b/arch/h8300/kernel/traps.c @@ -110,7 +110,7 @@ void die(const char *str, struct pt_regs *fp, unsigned long err) dump(fp); spin_unlock_irq(&die_lock); - do_exit(SIGSEGV); + make_dead_task(SIGSEGV); } static int kstack_depth_to_print = 24; diff --git a/arch/h8300/mm/fault.c b/arch/h8300/mm/fault.c index d4bc9c16f2df..0223528565dd 100644 --- a/arch/h8300/mm/fault.c +++ b/arch/h8300/mm/fault.c @@ -51,7 +51,7 @@ asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address, printk(" at virtual address %08lx\n", address); if (!user_mode(regs)) die("Oops", regs, error_code); - do_exit(SIGKILL); + make_dead_task(SIGKILL); return 1; } |