Merge git://brick.kernel.dk/data/git/linux-2.6-block

3 files changed, 35 insertions, 54 deletions

diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index 5c9c7c1a3d4c..326ca3876b68 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -468,16 +468,11 @@ aoecmd_ata_rsp(struct sk_buff *skb)
 			unsigned long duration = jiffies - buf->start_time;
 			unsigned long n_sect = buf->bio->bi_size >> 9;
 			struct gendisk *disk = d->gd;
+			const int rw = bio_data_dir(buf->bio);
 
-			if (bio_data_dir(buf->bio) == WRITE) {
-				disk_stat_inc(disk, writes);
-				disk_stat_add(disk, write_ticks, duration);
-				disk_stat_add(disk, write_sectors, n_sect);
-			} else {
-				disk_stat_inc(disk, reads);
-				disk_stat_add(disk, read_ticks, duration);
-				disk_stat_add(disk, read_sectors, n_sect);
-			}
+			disk_stat_inc(disk, ios[rw]);
+			disk_stat_add(disk, ticks[rw], duration);
+			disk_stat_add(disk, sectors[rw], n_sect);
 			disk_stat_add(disk, io_ticks, duration);
 			n = (buf->flags & BUFFL_FAIL) ? -EIO : 0;
 			bio_endio(buf->bio, buf->bio->bi_size, n);
diff --git a/drivers/block/genhd.c b/drivers/block/genhd.c
index 486ce1fdeb8c..54aec4a1ae13 100644
--- a/drivers/block/genhd.c
+++ b/drivers/block/genhd.c
@@ -391,13 +391,12 @@ static ssize_t disk_stats_read(struct gendisk * disk, char *page)
 		"%8u %8u %8llu %8u "
 		"%8u %8u %8u"
 		"\n",
-		disk_stat_read(disk, reads), disk_stat_read(disk, read_merges),
-		(unsigned long long)disk_stat_read(disk, read_sectors),
-		jiffies_to_msecs(disk_stat_read(disk, read_ticks)),
-		disk_stat_read(disk, writes), 
-		disk_stat_read(disk, write_merges),
-		(unsigned long long)disk_stat_read(disk, write_sectors),
-		jiffies_to_msecs(disk_stat_read(disk, write_ticks)),
+		disk_stat_read(disk, ios[0]), disk_stat_read(disk, merges[0]),
+		(unsigned long long)disk_stat_read(disk, sectors[0]),
+		jiffies_to_msecs(disk_stat_read(disk, ticks[0])),
+		disk_stat_read(disk, ios[1]), disk_stat_read(disk, merges[1]),
+		(unsigned long long)disk_stat_read(disk, sectors[1]),
+		jiffies_to_msecs(disk_stat_read(disk, ticks[1])),
 		disk->in_flight,
 		jiffies_to_msecs(disk_stat_read(disk, io_ticks)),
 		jiffies_to_msecs(disk_stat_read(disk, time_in_queue)));
@@ -583,12 +582,12 @@ static int diskstats_show(struct seq_file *s, void *v)
 	preempt_enable();
 	seq_printf(s, "%4d %4d %s %u %u %llu %u %u %u %llu %u %u %u %u\n",
 		gp->major, n + gp->first_minor, disk_name(gp, n, buf),
-		disk_stat_read(gp, reads), disk_stat_read(gp, read_merges),
-		(unsigned long long)disk_stat_read(gp, read_sectors),
-		jiffies_to_msecs(disk_stat_read(gp, read_ticks)),
-		disk_stat_read(gp, writes), disk_stat_read(gp, write_merges),
-		(unsigned long long)disk_stat_read(gp, write_sectors),
-		jiffies_to_msecs(disk_stat_read(gp, write_ticks)),
+		disk_stat_read(gp, ios[0]), disk_stat_read(gp, merges[0]),
+		(unsigned long long)disk_stat_read(gp, sectors[0]),
+		jiffies_to_msecs(disk_stat_read(gp, ticks[0])),
+		disk_stat_read(gp, ios[1]), disk_stat_read(gp, merges[1]),
+		(unsigned long long)disk_stat_read(gp, sectors[1]),
+		jiffies_to_msecs(disk_stat_read(gp, ticks[1])),
 		gp->in_flight,
 		jiffies_to_msecs(disk_stat_read(gp, io_ticks)),
 		jiffies_to_msecs(disk_stat_read(gp, time_in_queue)));
@@ -601,8 +600,8 @@ static int diskstats_show(struct seq_file *s, void *v)
 			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->reads, hd->read_sectors,
-				hd->writes, hd->write_sectors);
+				hd->ios[0], hd->sectors[0],
+				hd->ios[1], hd->sectors[1]);
 	}
  
 	return 0;
diff --git a/drivers/block/ll_rw_blk.c b/drivers/block/ll_rw_blk.c
index 0af73512b9a8..2747741677fb 100644
--- a/drivers/block/ll_rw_blk.c
+++ b/drivers/block/ll_rw_blk.c
@@ -2387,16 +2387,9 @@ static void drive_stat_acct(struct request *rq, int nr_sectors, int new_io)
 	if (!blk_fs_request(rq) || !rq->rq_disk)
 		return;
 
-	if (rw == READ) {
-		__disk_stat_add(rq->rq_disk, read_sectors, nr_sectors);
-		if (!new_io)
-			__disk_stat_inc(rq->rq_disk, read_merges);
-	} else if (rw == WRITE) {
-		__disk_stat_add(rq->rq_disk, write_sectors, nr_sectors);
-		if (!new_io)
-			__disk_stat_inc(rq->rq_disk, write_merges);
-	}
-	if (new_io) {
+	if (!new_io) {
+		__disk_stat_inc(rq->rq_disk, merges[rw]);
+	} else {
 		disk_round_stats(rq->rq_disk);
 		rq->rq_disk->in_flight++;
 	}
@@ -2791,17 +2784,11 @@ static inline void blk_partition_remap(struct bio *bio)
 
 	if (bdev != bdev->bd_contains) {
 		struct hd_struct *p = bdev->bd_part;
+		const int rw = bio_data_dir(bio);
+
+		p->sectors[rw] += bio_sectors(bio);
+		p->ios[rw]++;
 
-		switch (bio_data_dir(bio)) {
-		case READ:
-			p->read_sectors += bio_sectors(bio);
-			p->reads++;
-			break;
-		case WRITE:
-			p->write_sectors += bio_sectors(bio);
-			p->writes++;
-			break;
-		}
 		bio->bi_sector += p->start_sect;
 		bio->bi_bdev = bdev->bd_contains;
 	}
@@ -3048,6 +3035,12 @@ static int __end_that_request_first(struct request *req, int uptodate,
 				(unsigned long long)req->sector);
 	}
 
+	if (blk_fs_request(req) && req->rq_disk) {
+		const int rw = rq_data_dir(req);
+
+		__disk_stat_add(req->rq_disk, sectors[rw], nr_bytes >> 9);
+	}
+
 	total_bytes = bio_nbytes = 0;
 	while ((bio = req->bio) != NULL) {
 		int nbytes;
@@ -3176,16 +3169,10 @@ void end_that_request_last(struct request *req)
 
 	if (disk && blk_fs_request(req)) {
 		unsigned long duration = jiffies - req->start_time;
-		switch (rq_data_dir(req)) {
-		    case WRITE:
-			__disk_stat_inc(disk, writes);
-			__disk_stat_add(disk, write_ticks, duration);
-			break;
-		    case READ:
-			__disk_stat_inc(disk, reads);
-			__disk_stat_add(disk, read_ticks, duration);
-			break;
-		}
+		const int rw = rq_data_dir(req);
+
+		__disk_stat_inc(disk, ios[rw]);
+		__disk_stat_add(disk, ticks[rw], duration);
 		disk_round_stats(disk);
 		disk->in_flight--;
 	}