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Revert "net: activity_stats: Stop using obsolete create_proc_read_entry api"

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This reverts commit 7c121720fa.

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
This commit is contained in:
Amit Pundir
2016-04-25 17:00:57 +05:30
parent cded5596a3
commit 5c0d8ae10a
1 changed files with 18 additions and 22 deletions
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40
net/activity_stats.c
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@@ -15,7 +15,6 @@
*/
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/suspend.h>
#include <net/net_namespace.h>
@@ -60,20 +59,29 @@ void activity_stats_update(void)
spin_unlock_irqrestore(&activity_lock, flags);
}
static int activity_stats_show(struct seq_file *m, void *v)
static int activity_stats_read_proc(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
int i;
int ret;
int len;
char *p = page;
seq_printf(m, "Min Bucket(sec) Count\n");
/* Only print if offset is 0, or we have enough buffer space */
if (off || count < (30 * BUCKET_MAX + 22))
return -ENOMEM;
len = snprintf(p, count, "Min Bucket(sec) Count\n");
count -= len;
p += len;
for (i = 0; i < BUCKET_MAX; i++) {
ret = seq_printf(m, "%15d %lu\n", 1 << i, activity_stats[i]);
if (ret)
return ret;
len = snprintf(p, count, "%15d %lu\n", 1 << i, activity_stats[i]);
count -= len;
p += len;
}
*eof = 1;
return 0;
return p - page;
}
static int activity_stats_notifier(struct notifier_block *nb,
@@ -92,26 +100,14 @@ static int activity_stats_notifier(struct notifier_block *nb,
return 0;
}
static int activity_stats_open(struct inode *inode, struct file *file)
{
return single_open(file, activity_stats_show, PDE_DATA(inode));
}
static const struct file_operations activity_stats_fops = {
.open = activity_stats_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
static struct notifier_block activity_stats_notifier_block = {
.notifier_call = activity_stats_notifier,
};
static int __init activity_stats_init(void)
{
proc_create("activity", S_IRUGO,
init_net.proc_net_stat, &activity_stats_fops);
create_proc_read_entry("activity", S_IRUGO,
init_net.proc_net_stat, activity_stats_read_proc, NULL);
return register_pm_notifier(&activity_stats_notifier_block);
}