Messages in this thread | | | Date | Fri, 14 Feb 2014 17:04:24 -0500 | From | Tejun Heo <> | Subject | Re: [PATCH] kernfs: fix kernfs_node_from_dentry() |
| |
On Fri, Feb 14, 2014 at 02:04:40PM -0800, Greg Kroah-Hartman wrote: > On Fri, Feb 14, 2014 at 11:03:01AM -0500, Tejun Heo wrote: > > On Fri, Feb 14, 2014 at 04:57:27PM +0800, Li Zefan wrote: > > > Currently kernfs_node_from_dentry() returns NULL for root dentry, > > > because root_dentry->d_op == NULL. > > > > > > Due to this bug cgroupstats_build() returns -EINVAL for root cgroup. > > > > > > # mount -t cgroup -o cpuacct /cgroup > > > # Documentation/accounting/getdelays -C /cgroup > > > fatal reply error, errno -22 > > > > > > With this fix: > > > > > > # Documentation/accounting/getdelays -C /cgroup > > > sleeping 305, blocked 0, running 1, stopped 0, uninterruptible 1 > > > > > > Signed-off-by: Li Zefan <lizefan@huawei.com> > > > > Acked-by: Tejun Heo <tj@kernel.org> > > Is this needed for 3.14-final or 3.15-rc1?
3.15-rc1, so, driver-core-next.
Thanks.
-- tejun
| |