[patch 27/30] cpqarray: fix iostat

[Chris Wright <chrisw@sous-sol.org>]

-stable review patch.  If anyone has any objections, please let us know.
------------------

From: Jens Axboe <jens.axboe@oracle.com>

cpqarray needs to call disk_stat_add() for iostat to work.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
---

 drivers/block/cpqarray.c |   15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

--- linux-2.6.18.2.orig/drivers/block/cpqarray.c
+++ linux-2.6.18.2/drivers/block/cpqarray.c
@@ -1000,6 +1000,7 @@ static inline void complete_buffers(stru
  */
 static inline void complete_command(cmdlist_t *cmd, int timeout)
 {
+	struct request *rq = cmd->rq;
 	int ok=1;
 	int i, ddir;
 
@@ -1031,12 +1032,18 @@ static inline void complete_command(cmdl
                 pci_unmap_page(hba[cmd->ctlr]->pci_dev, cmd->req.sg[i].addr,
 				cmd->req.sg[i].size, ddir);
 
-	complete_buffers(cmd->rq->bio, ok);
+	complete_buffers(rq->bio, ok);
 
-	add_disk_randomness(cmd->rq->rq_disk);
+	if (blk_fs_request(rq)) {
+		const int rw = rq_data_dir(rq);
 
-        DBGPX(printk("Done with %p\n", cmd->rq););
-	end_that_request_last(cmd->rq, ok ? 1 : -EIO);
+		disk_stat_add(rq->rq_disk, sectors[rw], rq->nr_sectors);
+	}
+
+	add_disk_randomness(rq->rq_disk);
+
+	DBGPX(printk("Done with %p\n", rq););
+	end_that_request_last(rq, ok ? 1 : -EIO);
 }
 
 /*

--
-
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