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cpuset: simplify proc_cpuset_show()

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Use the ONE macro instead of REG, and we can simplify proc_cpuset_show().

Signed-off-by: Zefan Li <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
This commit is contained in:
Zefan Li 2014-09-18 16:03:36 +08:00 • committed by Tejun Heo
commit 52de4779f2
3 changed files with 7 additions and 31 deletions
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20
fs/proc/base.c
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@ -376,22 +376,6 @@ static const struct file_operations proc_lstats_operations = {
#endif
#ifdef CONFIG_PROC_PID_CPUSET
static int cpuset_open(struct inode *inode, struct file *file)
{
struct pid *pid = PROC_I(inode)->pid;
return single_open(file, proc_cpuset_show, pid);
}
static const struct file_operations proc_cpuset_operations = {
.open = cpuset_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#endif
static int proc_oom_score(struct seq_file *m, struct pid_namespace *ns,
struct pid *pid, struct task_struct *task)
{
@ -2558,7 +2542,7 @@ static const struct pid_entry tgid_base_stuff[] = {
REG("latency", S_IRUGO, proc_lstats_operations),
#endif
#ifdef CONFIG_PROC_PID_CPUSET
REG("cpuset", S_IRUGO, proc_cpuset_operations),
ONE("cpuset", S_IRUGO, proc_cpuset_show),
#endif
#ifdef CONFIG_CGROUPS
ONE("cgroup", S_IRUGO, proc_cgroup_show),
@ -2904,7 +2888,7 @@ static const struct pid_entry tid_base_stuff[] = {
REG("latency", S_IRUGO, proc_lstats_operations),
#endif
#ifdef CONFIG_PROC_PID_CPUSET
REG("cpuset", S_IRUGO, proc_cpuset_operations),
ONE("cpuset", S_IRUGO, proc_cpuset_show),
#endif
#ifdef CONFIG_CGROUPS
ONE("cgroup", S_IRUGO, proc_cgroup_show),