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| author | Li Zefan <lizefan@huawei.com> | 2014-06-30 11:50:28 +0800 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2014-06-30 10:16:25 -0400 |
| commit | 4e26445faad366d67d7723622bf6a60a6f0f5993 (patch) | |
| tree | c3e0f68527e2b094af5792e31e6ec0396d784308 /kernel/cgroup.c | |
| parent | 970317aa48c6ef66cd023c039c2650c897bad927 (diff) | |
kernfs: introduce kernfs_pin_sb()
kernfs_pin_sb() tries to get a refcnt of the superblock.
This will be used by cgroupfs.
v2:
- make kernfs_pin_sb() return the superblock.
- drop kernfs_drop_sb().
tj: Updated the comment a bit.
[ This is a prerequisite for a bugfix. ]
Cc: <stable@vger.kernel.org> # 3.15
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'kernel/cgroup.c')
0 files changed, 0 insertions, 0 deletions