From: Weng Meiling <wengmeiling.weng@huawei.com>
Date: Fri, 4 Apr 2014 07:58:20 +0000 (+0200)
Subject: There is a situation when moving a task from child cgroup
X-Git-Tag: v0.42.rc1~52
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5e283b0abc9f8bcf51d1b7f137e89cda2002a909;p=thirdparty%2Flibcgroup.git

There is a situation when moving a task from child cgroup
to parent cgroup, the task exited. This will lead to service
cgconfig start failed. So ignore the error ESRCH.

Signed-off-by: Weng Meiling <wengmeiling.weng@huawei.com>
Acked-by: Ivana Hutarova Varekova <varekova@redhat.com>
---

diff --git a/src/api.c b/src/api.c
index bfd0177b..0b3d8a07 100644
--- a/src/api.c
+++ b/src/api.c
@@ -1897,15 +1897,23 @@ static int cg_move_task_files(FILE *input_tasks, FILE *output_tasks)
 			break;
 
 		ret = fprintf(output_tasks, "%d", tids);
-		if (ret < 0)
-			break;
+		if (ret < 0) {
+			if (errno == ESRCH)
+				ret = 0;
+			else
+				break;
+		}
 
 		/*
 		 * Flush the file, we need only one process per write() call.
 		 */
 		ret = fflush(output_tasks);
-		if (ret < 0)
-			break;
+		if (ret < 0) {
+			if (errno == ESRCH)
+				ret = 0;
+			else
+				break;
+		}
 	}
 
 	if (ret < 0) {