From 70c949a42b2b0d0c9a2a567890483940cdc5f72c Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 15 Aug 2014 11:55:43 +0200
Subject: cgroup: never try to create files in cgroupfs, only open them for
 writing

This should have the benefit that cg_set_attribute() returns ENOENT
instead of EACCESS when we use it for non-existing attributes.
---
 src/shared/cgroup-util.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

(limited to 'src/shared/cgroup-util.c')

diff --git a/src/shared/cgroup-util.c b/src/shared/cgroup-util.c
index f683ae990e..e8cb9c73ac 100644
--- a/src/shared/cgroup-util.c
+++ b/src/shared/cgroup-util.c
@@ -643,7 +643,7 @@ int cg_attach(const char *controller, const char *path, pid_t pid) {
 
         snprintf(c, sizeof(c), PID_FMT"\n", pid);
 
-        return write_string_file(fs, c);
+        return write_string_file_no_create(fs, c);
 }
 
 int cg_attach_fallback(const char *controller, const char *path, pid_t pid) {
@@ -817,7 +817,7 @@ int cg_install_release_agent(const char *controller, const char *agent) {
 
         sc = strstrip(contents);
         if (sc[0] == 0) {
-                r = write_string_file(fs, agent);
+                r = write_string_file_no_create(fs, agent);
                 if (r < 0)
                         return r;
         } else if (!streq(sc, agent))
@@ -837,7 +837,7 @@ int cg_install_release_agent(const char *controller, const char *agent) {
 
         sc = strstrip(contents);
         if (streq(sc, "0")) {
-                r = write_string_file(fs, "1");
+                r = write_string_file_no_create(fs, "1");
                 if (r < 0)
                         return r;
 
@@ -858,7 +858,7 @@ int cg_uninstall_release_agent(const char *controller) {
         if (r < 0)
                 return r;
 
-        r = write_string_file(fs, "0");
+        r = write_string_file_no_create(fs, "0");
         if (r < 0)
                 return r;
 
@@ -869,7 +869,7 @@ int cg_uninstall_release_agent(const char *controller) {
         if (r < 0)
                 return r;
 
-        r = write_string_file(fs, "");
+        r = write_string_file_no_create(fs, "");
         if (r < 0)
                 return r;
 
@@ -1591,7 +1591,7 @@ int cg_set_attribute(const char *controller, const char *path, const char *attri
         if (r < 0)
                 return r;
 
-        return write_string_file(p, value);
+        return write_string_file_no_create(p, value);
 }
 
 static const char mask_names[] =
-- 
cgit v1.2.3-54-g00ecf