From: Helge Deller <deller@gmx.de>
Date: Thu, 17 Dec 2020 16:57:54 +0000 (+0100)
Subject: parisc: Drop out of get_whan() if task is running again
X-Git-Tag: iomap-folio-5.17-old~2038^2~6
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=f286303286f8c2cbef319f6288abb1e053a1b3d9;p=users%2Fwilly%2Flinux.git

parisc: Drop out of get_whan() if task is running again

Signed-off-by: Helge Deller <deller@gmx.de>
---

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index a92a23d6acd9..fda1c1a6a444 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -260,6 +260,8 @@ get_wchan(struct task_struct *p)
 	do {
 		if (unwind_once(&info) < 0)
 			return 0;
+		if (p->state == TASK_RUNNING)
+                        return 0;
 		ip = info.ip;
 		if (!in_sched_functions(ip))
 			return ip;