take cgroup_open() and cpuset_open() to fs/proc/base.c

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/proc/base.c b/fs/proc/base.c
index f2637c9..8281986 100644 (file)
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -404,6 +404,37 @@ 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)
+{
+       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 task_struct *task, char *buffer)
 {
        unsigned long totalpages = totalram_pages + total_swap_pages;

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 900af59..68f2157 100644 (file)
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -42,7 +42,7 @@ extern int cgroupstats_build(struct cgroupstats *stats,
 extern int cgroup_load_subsys(struct cgroup_subsys *ss);
 extern void cgroup_unload_subsys(struct cgroup_subsys *ss);
 
-extern const struct file_operations proc_cgroup_operations;
+extern int proc_cgroup_show(struct seq_file *, void *);
 
 /* Define the enumeration of all builtin cgroup subsystems */
 #define SUBSYS(_x) _x ## _subsys_id,

diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h
index 8c8a60d..22b637c 100644 (file)
--- a/include/linux/cpuset.h
+++ b/include/linux/cpuset.h
@@ -64,10 +64,9 @@ extern int cpuset_mems_allowed_intersects(const struct task_struct *tsk1,
 extern int cpuset_memory_pressure_enabled;
 extern void __cpuset_memory_pressure_bump(void);
 
-extern const struct file_operations proc_cpuset_operations;
-struct seq_file;
 extern void cpuset_task_status_allowed(struct seq_file *m,
                                        struct task_struct *task);
+extern int proc_cpuset_show(struct seq_file *, void *);
 
 extern int cpuset_mem_spread_node(void);
 extern int cpuset_slab_spread_node(void);

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index a32f943..d5cffe8 100644 (file)
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -4769,7 +4769,7 @@ out:
  */
 
 /* TODO: Use a proper seq_file iterator */
-static int proc_cgroup_show(struct seq_file *m, void *v)
+int proc_cgroup_show(struct seq_file *m, void *v)
 {
        struct pid *pid;
        struct task_struct *tsk;
@@ -4821,19 +4821,6 @@ out:
        return retval;
 }
 
-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);
-}
-
-const struct file_operations proc_cgroup_operations = {
-       .open           = cgroup_open,
-       .read           = seq_read,
-       .llseek         = seq_lseek,
-       .release        = single_release,
-};
-
 /* Display information about each subsystem and each hierarchy */
 static int proc_cgroupstats_show(struct seq_file *m, void *v)
 {

diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 4f9dfe4..1b6f615 100644 (file)
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -2666,7 +2666,7 @@ void __cpuset_memory_pressure_bump(void)
  *    and we take cpuset_mutex, keeping cpuset_attach() from changing it
  *    anyway.
  */
-static int proc_cpuset_show(struct seq_file *m, void *unused_v)
+int proc_cpuset_show(struct seq_file *m, void *unused_v)
 {
        struct pid *pid;
        struct task_struct *tsk;
@@ -2700,19 +2700,6 @@ out_free:
 out:
        return retval;
 }
-
-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);
-}
-
-const struct file_operations proc_cpuset_operations = {
-       .open           = cpuset_open,
-       .read           = seq_read,
-       .llseek         = seq_lseek,
-       .release        = single_release,
-};
 #endif /* CONFIG_PROC_PID_CPUSET */
 
 /* Display task mems_allowed in /proc/<pid>/status file. */