From b9f3cecaba592d4e98cd155c91b1414323ed51e8 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 29 Nov 2013 10:42:58 -0500 Subject: [PATCH] cgroup: remove cftype->release() Now that pidlist files don't use cftype->release(), it doesn't have any user left. Remove it. Signed-off-by: Tejun Heo Acked-by: Li Zefan --- include/linux/cgroup.h | 2 -- kernel/cgroup.c | 3 --- 2 files changed, 5 deletions(-) diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 492fa01ec2d3..5207c28c2402 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -499,8 +499,6 @@ struct cftype { * kick type for multiplexing. */ int (*trigger)(struct cgroup_subsys_state *css, unsigned int event); - - int (*release)(struct inode *inode, struct file *file); }; /* diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 1e09ded0387a..b59e3453eae7 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -2448,12 +2448,9 @@ static int cgroup_file_open(struct inode *inode, struct file *file) static int cgroup_file_release(struct inode *inode, struct file *file) { struct cfent *cfe = __d_cfe(file->f_dentry); - struct cftype *cft = __d_cft(file->f_dentry); struct cgroup_subsys_state *css = cfe->css; int ret = 0; - if (cft->release) - ret = cft->release(inode, file); if (css->ss) css_put(css); if (file->f_op == &cgroup_seqfile_operations)