| From | Greg Kroah-Hartman <> | Subject | [ 45/45] cpuset: fix the return value of cpuset_write_u64() | Date | Sun, 18 Aug 2013 13:36:34 -0700 |
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3.10-stable review patch. If anyone has any objections, please let me know.
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From: Li Zefan <lizefan@huawei.com>
commit a903f0865a190f8778c73df1a810ea6e25e5d7cf upstream.
Writing to this file always returns -ENODEV:
# echo 1 > cpuset.memory_pressure_enabled -bash: echo: write error: No such device
Signed-off-by: Li Zefan <lizefan@huawei.com> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- kernel/cpuset.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
--- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -1502,11 +1502,13 @@ static int cpuset_write_u64(struct cgrou { 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:
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