net: activity_stats: Stop using obsolete create_proc_read_entry api
Convert to use seq_read Signed-off-by: Arve Hjønnevåg <arve@android.com>
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@ -15,6 +15,7 @@
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*/
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/suspend.h>
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#include <net/net_namespace.h>
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@ -59,29 +60,20 @@ void activity_stats_update(void)
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spin_unlock_irqrestore(&activity_lock, flags);
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}
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static int activity_stats_read_proc(char *page, char **start, off_t off,
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int count, int *eof, void *data)
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static int activity_stats_show(struct seq_file *m, void *v)
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{
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int i;
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int len;
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char *p = page;
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int ret;
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/* Only print if offset is 0, or we have enough buffer space */
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if (off || count < (30 * BUCKET_MAX + 22))
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return -ENOMEM;
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len = snprintf(p, count, "Min Bucket(sec) Count\n");
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count -= len;
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p += len;
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seq_printf(m, "Min Bucket(sec) Count\n");
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for (i = 0; i < BUCKET_MAX; i++) {
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len = snprintf(p, count, "%15d %lu\n", 1 << i, activity_stats[i]);
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count -= len;
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p += len;
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ret = seq_printf(m, "%15d %lu\n", 1 << i, activity_stats[i]);
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if (ret)
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return ret;
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}
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*eof = 1;
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return p - page;
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return 0;
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}
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static int activity_stats_notifier(struct notifier_block *nb,
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@ -100,14 +92,26 @@ static int activity_stats_notifier(struct notifier_block *nb,
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return 0;
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}
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static int activity_stats_open(struct inode *inode, struct file *file)
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{
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return single_open(file, activity_stats_show, PDE_DATA(inode));
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}
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static const struct file_operations activity_stats_fops = {
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.open = activity_stats_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = seq_release,
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};
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static struct notifier_block activity_stats_notifier_block = {
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.notifier_call = activity_stats_notifier,
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};
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static int __init activity_stats_init(void)
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{
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create_proc_read_entry("activity", S_IRUGO,
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init_net.proc_net_stat, activity_stats_read_proc, NULL);
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proc_create("activity", S_IRUGO,
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init_net.proc_net_stat, &activity_stats_fops);
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return register_pm_notifier(&activity_stats_notifier_block);
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}
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