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| author |   Zefan Li <lizefan@huawei.com> | 2014-09-18 16:03:15 +0800 |
|---|---|---|
| committer |   Tejun Heo <tj@kernel.org> | 2014-09-18 13:27:23 -0400 |
| commit | 006f4ac49742b5f70ef7e39176fd42a500144ccc (patch) | |
| tree | 976006e7b7a5a0df635538fe51348e4648d9df8c /fs/proc | |
| parent | cgroup: use a per-cgroup work for release agent (diff) | |
| download | linux-dev-006f4ac49742b5f70ef7e39176fd42a500144ccc.tar.xz linux-dev-006f4ac49742b5f70ef7e39176fd42a500144ccc.zip | |
cgroup: simplify proc_cgroup_show()
Use the ONE macro instead of REG, and we can simplify proc_cgroup_show().
Signed-off-by: Zefan Li <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'fs/proc')
| -rw-r--r-- | fs/proc/base.c | 19 |
1 files changed, 2 insertions, 17 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index baf852b648ad..6b96892015ec 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -376,21 +376,6 @@ static const struct file_operations proc_lstats_operations = { #endif -#ifdef CONFIG_CGROUPS -static int cgroup_open(struct inode *inode, struct file *file) -{ - struct pid *pid = PROC_I(inode)->pid; - return single_open(file, proc_cgroup_show, pid); -} - -static const struct file_operations proc_cgroup_operations = { - .open = cgroup_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; -#endif - #ifdef CONFIG_PROC_PID_CPUSET static int cpuset_open(struct inode *inode, struct file *file) @@ -2576,7 +2561,7 @@ static const struct pid_entry tgid_base_stuff[] = { REG("cpuset", S_IRUGO, proc_cpuset_operations), #endif #ifdef CONFIG_CGROUPS - REG("cgroup", S_IRUGO, proc_cgroup_operations), + ONE("cgroup", S_IRUGO, proc_cgroup_show), #endif ONE("oom_score", S_IRUGO, proc_oom_score), REG("oom_adj", S_IRUGO|S_IWUSR, proc_oom_adj_operations), @@ -2922,7 +2907,7 @@ static const struct pid_entry tid_base_stuff[] = { REG("cpuset", S_IRUGO, proc_cpuset_operations), #endif #ifdef CONFIG_CGROUPS - REG("cgroup", S_IRUGO, proc_cgroup_operations), + ONE("cgroup", S_IRUGO, proc_cgroup_show), #endif ONE("oom_score", S_IRUGO, proc_oom_score), REG("oom_adj", S_IRUGO|S_IWUSR, proc_oom_adj_operations), |