Messages in this thread |  | | Date | Fri, 14 Feb 2014 11:03:01 -0500 | From | Tejun Heo <> | Subject | Re: [PATCH] kernfs: fix kernfs_node_from_dentry() |
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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>
Thanks!
-- tejun
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