From: Richard Henwood <rhenwood@whamcloud.com>
Date: Wed, 6 Jul 2011 20:21:01 +0000 (-0400)
Subject: LU-487 brw_[read|write] stats to correctly counts number of pages.
X-Git-Tag: 2.1.0-RC0~28
X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=commitdiff_plain;h=6aea71f39238f370c02a2f293a01555cc653bd01

LU-487 brw_[read|write] stats to correctly counts number of pages.

brw_[read|write] now correctly counts the number of pages. Before
this change, the number of pages multiplied by the page size was
counted.

Change-Id: I069c18cf46c67285de1ae2afc48f7fb4ab92df3c
Signed-off-by: Richard Henwood <rhenwood@whamcloud.com>
Reviewed-on: http://review.whamcloud.com/1056
Tested-by: Hudson
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
---

diff --git a/lustre/llite/lloop.c b/lustre/llite/lloop.c
index 3b13aab..31fcb4b 100644
--- a/lustre/llite/lloop.c
+++ b/lustre/llite/lloop.c
@@ -240,7 +240,7 @@ static int do_bio_lustrebacked(struct lloop_device *lo, struct bio *head)
 
         ll_stats_ops_tally(ll_i2sbi(inode),
                         (rw == WRITE) ? LPROC_LL_BRW_WRITE : LPROC_LL_BRW_READ,
-                        page_count << PAGE_CACHE_SHIFT);
+                        page_count);
 
         pvec->ldp_size = page_count << PAGE_CACHE_SHIFT;
         pvec->ldp_nr = page_count;