xmon has a bug (copied from kdb) that when showing a list of processes
the debugger is listed as the parent, if a processes is being debugged.
This is silly, and I expect it is rare enough no has noticed in
practice. Update the code to use real_parent so that it is clear xmon
does not want to display a debugger as the parent of a process.
Cc: Douglas Miller <dougm...@linux.vnet.ibm.com>
Cc: Michael Ellerman <m...@ellerman.id.au>
Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org>
Cc: Paul Mackerras <pau...@samba.org>
Fixes: 6dfb54049f9a ("powerpc/xmon: Add xmon command to dump process/task
similar to ps(1)")
Signed-off-by: "Eric W. Biederman" <ebied...@xmission.com>
---
arch/powerpc/xmon/xmon.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index fd72753e8ad5..b308ef9ce604 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -3282,7 +3282,7 @@ static void show_task(struct task_struct *volatile tsk)
printf("%16px %16lx %16px %6d %6d %c %2d %s\n", tsk,
tsk->thread.ksp, tsk->thread.regs,
- tsk->pid, rcu_dereference(tsk->parent)->pid,
+ tsk->pid, rcu_dereference(tsk->real_parent)->pid,
state, task_cpu(tsk),
tsk->comm);
}
--
2.35.3
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