From: Andrew Morton <akpm@osdl.org>
Date: Sun, 10 Dec 2006 10:19:47 +0000 (-0800)
Subject: [PATCH] io-accounting: direct-io
X-Git-Tag: v3.12-rc1~32223^2~70
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=98c4d57decf97bf8ddfe948a3266aa56b38b1a51;p=kernel%2Fkernel-generic.git

[PATCH] io-accounting: direct-io

Account for direct-io.

Cc: Jay Lan <jlan@sgi.com>
Cc: Shailabh Nagar <nagar@watson.ibm.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Chris Sturtivant <csturtiv@sgi.com>
Cc: Tony Ernst <tee@sgi.com>
Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
Cc: David Wright <daw@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/fs/direct-io.c b/fs/direct-io.c
index 5981e17f..45d34d8 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -27,6 +27,7 @@
 #include <linux/slab.h>
 #include <linux/highmem.h>
 #include <linux/pagemap.h>
+#include <linux/task_io_accounting_ops.h>
 #include <linux/bio.h>
 #include <linux/wait.h>
 #include <linux/err.h>
@@ -675,6 +676,13 @@ submit_page_section(struct dio *dio, struct page *page,
 {
 	int ret = 0;
 
+	if (dio->rw & WRITE) {
+		/*
+		 * Read accounting is performed in submit_bio()
+		 */
+		task_io_account_write(len);
+	}
+
 	/*
 	 * Can we just grow the current page's presence in the dio?
 	 */