Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb

[linux.git] / block / ll_rw_blk.c

diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index 4f83fd92237756e74a959565ca9b6f8b76440165..a541b42c08e343f848d292a1ebfda4a0e82d5090 100644 (file)
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -25,6 +25,7 @@
 #include <linux/slab.h>
 #include <linux/swap.h>
 #include <linux/writeback.h>
+#include <linux/task_io_accounting_ops.h>
 #include <linux/interrupt.h>
 #include <linux/cpu.h>
 #include <linux/blktrace_api.h>
@@ -128,13 +129,6 @@ struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev)
 }
 EXPORT_SYMBOL(blk_get_backing_dev_info);
 
-void blk_queue_activity_fn(request_queue_t *q, activity_fn *fn, void *data)
-{
-       q->activity_fn = fn;
-       q->activity_data = data;
-}
-EXPORT_SYMBOL(blk_queue_activity_fn);
-
 /**
  * blk_queue_prep_rq - set a prepare_request function for queue
  * @q:         queue
@@ -237,8 +231,6 @@ void blk_queue_make_request(request_queue_t * q, make_request_fn * mfn)
         * by default assume old behaviour and bounce for any highmem page
         */
        blk_queue_bounce_limit(q, BLK_BOUNCE_HIGH);
-
-       blk_queue_activity_fn(q, NULL, NULL);
 }
 
 EXPORT_SYMBOL(blk_queue_make_request);
@@ -2695,9 +2687,6 @@ static inline void add_request(request_queue_t * q, struct request * req)
 {
        drive_stat_acct(req, req->nr_sectors, 1);
 
-       if (q->activity_fn)
-               q->activity_fn(q->activity_data, rq_data_dir(req));
-
        /*
         * elevator indicated where it wants this request to be
         * inserted at elevator_merge time
@@ -3235,10 +3224,12 @@ void submit_bio(int rw, struct bio *bio)
        BIO_BUG_ON(!bio->bi_size);
        BIO_BUG_ON(!bio->bi_io_vec);
        bio->bi_rw |= rw;
-       if (rw & WRITE)
+       if (rw & WRITE) {
                count_vm_events(PGPGOUT, count);
-       else
+       } else {
+               task_io_account_read(bio->bi_size);
                count_vm_events(PGPGIN, count);
+       }
 
        if (unlikely(block_dump)) {
                char b[BDEVNAME_SIZE];