[GIT pull] core/urgent for 5.3-rc1

[Thomas Gleixner]

Linus,

please pull the latest core-urgent-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 
core-urgent-for-linus

up to:  7e8e6816c649: stacktrace: Use PF_KTHREAD to check for kernel threads

Fix yet another instance of kernel thread check which ignores that kernel
threads can call use_mm().

Thanks,

        tglx

------------------>
Thomas Gleixner (1):
      stacktrace: Use PF_KTHREAD to check for kernel threads


 kernel/stacktrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c
index 36139de0a3c4..c8d0f05721a1 100644
--- a/kernel/stacktrace.c
+++ b/kernel/stacktrace.c
@@ -228,7 +228,7 @@ unsigned int stack_trace_save_user(unsigned long *store, 
unsigned int size)
        };
 
        /* Trace user stack if not a kernel thread */
-       if (!current->mm)
+       if (current->flags & PF_KTHREAD)
                return 0;
 
        arch_stack_walk_user(consume_entry, &c, task_pt_regs(current));