From 4dbcdc751cb25ffca3a8374cbc5ab6de961cc545 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Fri, 6 Jan 2006 00:20:52 -0800
Subject: [PATCH] md: count corrected read errors per drive

Store this total in superblock (As appropriate), and make it available to
userspace via sysfs.

Signed-off-by: Neil Brown <neilb@suse.de>
Acked-by: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 drivers/md/raid5.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'drivers/md/raid5.c')

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 9cc844f455bf..54f4a9847e38 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1400,6 +1400,9 @@ static void handle_stripe(struct stripe_head *sh)
 			bi->bi_io_vec[0].bv_offset = 0;
 			bi->bi_size = STRIPE_SIZE;
 			bi->bi_next = NULL;
+			if (rw == WRITE &&
+			    test_bit(R5_ReWrite, &sh->dev[i].flags))
+				atomic_add(STRIPE_SECTORS, &rdev->corrected_errors);
 			generic_make_request(bi);
 		} else {
 			if (rw == 1)
-- 
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