Li Zefan f41c593454 kernfs: fix kernfs_node_from_dentry() ...

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2014-02-14 14:31:37 -08:00

..

dir.c

kernfs: fix kernfs_node_from_dentry()

2014-02-14 14:31:37 -08:00

file.c

kernfs: implement kernfs_ops->atomic_write_len

2014-02-07 15:52:48 -08:00

inode.c

kernfs: s/sysfs/kernfs/ in internal functions and whatever is left

2013-12-11 17:39:20 -08:00

Kconfig

kernfs: add CONFIG_KERNFS

2014-02-07 16:08:57 -08:00

kernfs-internal.h

kernfs: fix kernfs_node_from_dentry()

2014-02-14 14:31:37 -08:00

Makefile

sysfs, kernfs: add skeletons for kernfs

2013-11-27 13:28:24 -08:00

mount.c

kernfs: fix kernfs_node_from_dentry()

2014-02-14 14:31:37 -08:00

symlink.c

kernfs: remove kernfs_addrm_cxt

2014-02-07 15:42:40 -08:00