proc: convert /proc/$PID/oom_score to seq_file interface

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/proc/base.c b/fs/proc/base.c
index 4bb8d34..d0bf000 100644 (file)
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -411,7 +411,8 @@ static const struct file_operations proc_cpuset_operations = {
 };
 #endif
 
-static int proc_oom_score(struct task_struct *task, char *buffer)
+static int proc_oom_score(struct seq_file *m, struct pid_namespace *ns,
+                         struct pid *pid, struct task_struct *task)
 {
        unsigned long totalpages = totalram_pages + total_swap_pages;
        unsigned long points = 0;
@@ -421,7 +422,7 @@ static int proc_oom_score(struct task_struct *task, char *buffer)
                points = oom_badness(task, NULL, NULL, totalpages) *
                                                1000 / totalpages;
        read_unlock(&tasklist_lock);
-       return sprintf(buffer, "%lu\n", points);
+       return seq_printf(m, "%lu\n", points);
 }
 
 struct limit_names {
@@ -2616,7 +2617,7 @@ static const struct pid_entry tgid_base_stuff[] = {
 #ifdef CONFIG_CGROUPS
        REG("cgroup",  S_IRUGO, proc_cgroup_operations),
 #endif
-       INF("oom_score",  S_IRUGO, proc_oom_score),
+       ONE("oom_score",  S_IRUGO, proc_oom_score),
        REG("oom_adj",    S_IRUGO|S_IWUSR, proc_oom_adj_operations),
        REG("oom_score_adj", S_IRUGO|S_IWUSR, proc_oom_score_adj_operations),
 #ifdef CONFIG_AUDITSYSCALL
@@ -2954,7 +2955,7 @@ static const struct pid_entry tid_base_stuff[] = {
 #ifdef CONFIG_CGROUPS
        REG("cgroup",  S_IRUGO, proc_cgroup_operations),
 #endif
-       INF("oom_score", S_IRUGO, proc_oom_score),
+       ONE("oom_score", S_IRUGO, proc_oom_score),
        REG("oom_adj",   S_IRUGO|S_IWUSR, proc_oom_adj_operations),
        REG("oom_score_adj", S_IRUGO|S_IWUSR, proc_oom_score_adj_operations),
 #ifdef CONFIG_AUDITSYSCALL