[GIT PULL] cgroup fixes for v3.11-rc5

[GIT PULL] cgroup fixes for v3.11-rc5

[Tejun Heo]

Hello, Linus.

This pull request contains one patch to fix the return value of
cpuset's cgroups interface function, which used to always return
-ENODEV for the writes on the "memory_pressure_enabled" file.

The fix is available in the following branch

  git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git for-3.11-fixes

for you to fetch changes up to a903f0865a190f8778c73df1a810ea6e25e5d7cf:

  cpuset: fix the return value of cpuset_write_u64() (2013-08-13 10:54:40 -0400)

Thanks.

----------------------------------------------------------------
Li Zefan (1):
      cpuset: fix the return value of cpuset_write_u64()

 kernel/cpuset.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index e565778..010a008 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -1608,11 +1608,13 @@ static int cpuset_write_u64(struct cgroup *cgrp, struct cftype *cft, u64 val)
 {
 	struct cpuset *cs = cgroup_cs(cgrp);
 	cpuset_filetype_t type = cft->private;
-	int retval = -ENODEV;
+	int retval = 0;
 
 	mutex_lock(&cpuset_mutex);
-	if (!is_cpuset_online(cs))
+	if (!is_cpuset_online(cs)) {
+		retval = -ENODEV;
 		goto out_unlock;
+	}
 
 	switch (type) {
 	case FILE_CPU_EXCLUSIVE:

--
tejun