proc_fuse: fix wait child process hang

Signed-off-by: zhangsong234 <zhangsong34@huawei.com>

0017-proc_fuse-fix-wait-child-process-hang.patch

@@ -0,0 +1,30 @@
+From aa362b383ca5e79e03fd350867fb4f96a1335ae5 Mon Sep 17 00:00:00 2001
+From: zhangsong234 <zhangsong34@huawei.com>
+Date: Thu, 27 May 2021 10:16:00 +0800
+Subject: [PATCH] proc_fuse: fix wait child process hang
+
+Signed-off-by: zhangsong234 <zhangsong34@huawei.com>
+---
+ src/proc_fuse.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/proc_fuse.c b/src/proc_fuse.c
+index 96eb9d7..82b32c1 100644
+--- a/src/proc_fuse.c
++++ b/src/proc_fuse.c
+@@ -487,11 +487,11 @@ struct devinfo* container_dev_read(pid_t pid) {
+ 		dev_num = dev_stat.st_dev & (~0xf);
+ 		fprintf(stream, "sda %d end 0 ", dev_num);
+ 		fflush(stream);
++child_out:
+ 		fclose(stream);
+ 		exit(0);
+ 	}
+ 
+-child_out:
+ 	close(mypipe[1]);
+ 	stream = fdopen(mypipe[0], "r");
+ 	if (stream == NULL) {
+-- 
+2.27.0
+

lxcfs.spec

@@ -4,7 +4,7 @@
 #Basic Information
 Name:      lxcfs
 Version:   4.0.5
-Release:   4
+Release:   5
 Summary:   FUSE filesystem for LXC
 License:   LGPL 2.1+
 URL:       http://linuxcontainers.org
@@ -26,6 +26,7 @@ Patch9013: 0013-add-secure-compile-option-in-Makefile.patch
 Patch9014: 0014-fix-proc-diskstats-show-in-container.patch
 Patch9015: 0015-lxcfs-adapt-4.18-kernel.patch
 Patch9016: 0016-remove-lxcfs-tools-dependency-for-common-use.patch
+Patch9017: 0017-proc_fuse-fix-wait-child-process-hang.patch
 
 #Dependency
 BuildRequires: autoconf automake libtool help2man
@@ -85,6 +86,9 @@ fi
 %{_unitdir}/*
 
 %changelog
+* Thu May 27 2021 zhangsong234 <zhangsong34@huawei.com> - 4.0.5-5
+- proc_fuse: fix wait child process hang
+
 * Tue Mar 30 2021 zhangsong234 <zhangsong34@huawei.com> - 4.0.5-4
 - remove lxcfs-tools dependency for common use