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authorJens Axboe <axboe@suse.de>2005-11-09 07:38:47 -0500
committerJens Axboe <axboe@nelson.home.kernel.dk>2005-11-12 04:55:21 -0500
commit47a004103d663bbba8c7c433a710a86f44351cf3 (patch)
tree91bf9479fa43e7a13b02b2f6b957373b5b28b5ef /block
parentcff3ba2204a0797b05150a4b2b7f40a55023d952 (diff)
[BLOCK] Document the READ/WRITE splitup of the disk stats
Use the symbolic name where appropriate and add a comment to the disk_stats structure. Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'block')
-rw-r--r--block/genhd.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/block/genhd.c b/block/genhd.c
index 54aec4a1ae1..f04609d553b 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -391,12 +391,14 @@ static ssize_t disk_stats_read(struct gendisk * disk, char *page)
391 "%8u %8u %8llu %8u " 391 "%8u %8u %8llu %8u "
392 "%8u %8u %8u" 392 "%8u %8u %8u"
393 "\n", 393 "\n",
394 disk_stat_read(disk, ios[0]), disk_stat_read(disk, merges[0]), 394 disk_stat_read(disk, ios[READ]),
395 (unsigned long long)disk_stat_read(disk, sectors[0]), 395 disk_stat_read(disk, merges[READ]),
396 jiffies_to_msecs(disk_stat_read(disk, ticks[0])), 396 (unsigned long long)disk_stat_read(disk, sectors[READ]),
397 disk_stat_read(disk, ios[1]), disk_stat_read(disk, merges[1]), 397 jiffies_to_msecs(disk_stat_read(disk, ticks[READ])),
398 (unsigned long long)disk_stat_read(disk, sectors[1]), 398 disk_stat_read(disk, ios[WRITE]),
399 jiffies_to_msecs(disk_stat_read(disk, ticks[1])), 399 disk_stat_read(disk, merges[WRITE]),
400 (unsigned long long)disk_stat_read(disk, sectors[WRITE]),
401 jiffies_to_msecs(disk_stat_read(disk, ticks[WRITE])),
400 disk->in_flight, 402 disk->in_flight,
401 jiffies_to_msecs(disk_stat_read(disk, io_ticks)), 403 jiffies_to_msecs(disk_stat_read(disk, io_ticks)),
402 jiffies_to_msecs(disk_stat_read(disk, time_in_queue))); 404 jiffies_to_msecs(disk_stat_read(disk, time_in_queue)));