1 files changed, 63 insertions, 0 deletions
diff --git a/poky/meta/recipes-extended/ltp/ltp/0001-mountns0-1-3-wait-for-umount-completed-in-thread_b.patch b/poky/meta/recipes-extended/ltp/ltp/0001-mountns0-1-3-wait-for-umount-completed-in-thread_b.patch
new file mode 100644
index 0000000000..1339c603b9
--- /dev/null
+++ b/poky/meta/recipes-extended/ltp/ltp/0001-mountns0-1-3-wait-for-umount-completed-in-thread_b.patch
@@ -0,0 +1,63 @@
+From 6d4c8343d33e7d8fa059246310413f029a9e8573 Mon Sep 17 00:00:00 2001
+From: Li Wang <liwang@redhat.com>
+Date: Thu, 7 Jul 2022 17:38:45 +0800
+Subject: [PATCH] mountns0[1-3]: wait for umount completed in thread_b
+
+To get rid of race condition (occurs with umount_folders):
+
+    mountns01.c:42: TPASS: shared mount in parent passed
+    mountns01.c:83: TPASS: shared mount in child passed
+    tst_device.c:394: TWARN: umount('B') failed with EINVAL
+    mountns.h:39: TWARN: umount(B) failed: EINVAL (22)
+
+Signed-off-by: Li Wang <liwang@redhat.com>
+Reviewed-by: Yang Xu <xuyang2018.jy@fujitsu.com>
+Upstream-Status: Backport [6d4c8343d33e7d8fa059246310413f029a9e8573]
+---
+ testcases/kernel/containers/mountns/mountns01.c | 2 ++
+ testcases/kernel/containers/mountns/mountns02.c | 2 ++
+ testcases/kernel/containers/mountns/mountns03.c | 2 ++
+ 3 files changed, 6 insertions(+)
+
+diff --git a/testcases/kernel/containers/mountns/mountns01.c b/testcases/kernel/containers/mountns/mountns01.c
+index e99134aba..e8f176920 100644
+--- a/testcases/kernel/containers/mountns/mountns01.c
++++ b/testcases/kernel/containers/mountns/mountns01.c
+@@ -86,6 +86,8 @@ static void run(void)
+ 
+ 	TST_CHECKPOINT_WAKE(0);
+ 
++	SAFE_WAIT(NULL);
++
+ 	SAFE_UMOUNT(DIRA);
+ }
+ 
+diff --git a/testcases/kernel/containers/mountns/mountns02.c b/testcases/kernel/containers/mountns/mountns02.c
+index 258b61217..4b85fa79b 100644
+--- a/testcases/kernel/containers/mountns/mountns02.c
++++ b/testcases/kernel/containers/mountns/mountns02.c
+@@ -87,6 +87,8 @@ static void run(void)
+ 
+ 	TST_CHECKPOINT_WAKE(0);
+ 
++	SAFE_WAIT(NULL);
++
+ 	SAFE_UMOUNT(DIRA);
+ }
+ 
+diff --git a/testcases/kernel/containers/mountns/mountns03.c b/testcases/kernel/containers/mountns/mountns03.c
+index f37ae7902..1d26a25d8 100644
+--- a/testcases/kernel/containers/mountns/mountns03.c
++++ b/testcases/kernel/containers/mountns/mountns03.c
+@@ -97,6 +97,8 @@ static void run(void)
+ 
+ 	TST_CHECKPOINT_WAKE(0);
+ 
++	SAFE_WAIT(NULL);
++
+ 	SAFE_UMOUNT(DIRA);
+ }
+ 
+-- 
+2.37.1
+