X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=block%2Fgenhd.c;h=00da5219ee37c02a066d45e6ceefa65d9606d5e6;hb=458622fcdc5b316de8d74efd7e610803f0308c14;hp=de2ebb2fab436119cf16b862c720c15be6d991c4;hpb=c64768a7d671bcde80bca2aed93f9e07edc069c3;p=linux-2.6-omap-h63xx.git

diff --git a/block/genhd.c b/block/genhd.c
index de2ebb2fab4..00da5219ee3 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -17,11 +17,15 @@
 #include <linux/buffer_head.h>
 #include <linux/mutex.h>
 
+#include "blk.h"
+
 static DEFINE_MUTEX(block_class_lock);
 #ifndef CONFIG_SYSFS_DEPRECATED
 struct kobject *block_depr;
 #endif
 
+static struct device_type disk_type;
+
 /*
  * Can be deleted altogether. Later.
  *
@@ -346,8 +350,6 @@ const struct seq_operations partitions_op = {
 #endif
 
 
-extern int blk_dev_init(void);
-
 static struct kobject *base_probe(dev_t devt, int *part, void *data)
 {
 	if (request_module("block-major-%d-%d", MAJOR(devt), MINOR(devt)) > 0)
@@ -358,7 +360,9 @@ static struct kobject *base_probe(dev_t devt, int *part, void *data)
 
 static int __init genhd_device_init(void)
 {
-	class_register(&block_class);
+	int error = class_register(&block_class);
+	if (unlikely(error))
+		return error;
 	bdev_map = kobj_map_init(base_probe, &block_class_lock);
 	blk_dev_init();
 
@@ -502,7 +506,7 @@ struct class block_class = {
 	.name		= "block",
 };
 
-struct device_type disk_type = {
+static struct device_type disk_type = {
 	.name		= "disk",
 	.groups		= disk_attr_groups,
 	.release	= disk_release,
@@ -584,12 +588,28 @@ static int diskstats_show(struct seq_file *s, void *v)
 	for (n = 0; n < gp->minors - 1; n++) {
 		struct hd_struct *hd = gp->part[n];
 
-		if (hd && hd->nr_sects)
-			seq_printf(s, "%4d %4d %s %u %u %u %u\n",
-				gp->major, n + gp->first_minor + 1,
-				disk_name(gp, n + 1, buf),
-				hd->ios[0], hd->sectors[0],
-				hd->ios[1], hd->sectors[1]);
+		if (!hd || !hd->nr_sects)
+			continue;
+
+		preempt_disable();
+		part_round_stats(hd);
+		preempt_enable();
+		seq_printf(s, "%4d %4d %s %lu %lu %llu "
+			   "%u %lu %lu %llu %u %u %u %u\n",
+			   gp->major, n + gp->first_minor + 1,
+			   disk_name(gp, n + 1, buf),
+			   part_stat_read(hd, ios[0]),
+			   part_stat_read(hd, merges[0]),
+			   (unsigned long long)part_stat_read(hd, sectors[0]),
+			   jiffies_to_msecs(part_stat_read(hd, ticks[0])),
+			   part_stat_read(hd, ios[1]),
+			   part_stat_read(hd, merges[1]),
+			   (unsigned long long)part_stat_read(hd, sectors[1]),
+			   jiffies_to_msecs(part_stat_read(hd, ticks[1])),
+			   hd->in_flight,
+			   jiffies_to_msecs(part_stat_read(hd, io_ticks)),
+			   jiffies_to_msecs(part_stat_read(hd, time_in_queue))
+			);
 	}
  
 	return 0;
@@ -616,12 +636,14 @@ static void media_change_notify_thread(struct work_struct *work)
 	put_device(gd->driverfs_dev);
 }
 
+#if 0
 void genhd_media_change_notify(struct gendisk *disk)
 {
 	get_device(disk->driverfs_dev);
 	schedule_work(&disk->async_notify);
 }
 EXPORT_SYMBOL_GPL(genhd_media_change_notify);
+#endif  /*  0  */
 
 dev_t blk_lookup_devt(const char *name)
 {