From: NeilBrown <neilb@suse.de>
To: linux-raid@vger.kernel.org
Subject: [md PATCH 06/10] md: teach sync_page_io about new_data_offset.
Date: Tue, 03 Apr 2012 15:53:01 +1000 [thread overview]
Message-ID: <20120403055301.19495.59705.stgit@notabene.brown> (raw)
In-Reply-To: <20120403054656.19495.36380.stgit@notabene.brown>
Some code in raid1 and raid10 use sync_page_io to
read/write pages when responding to read errors.
As we will shortly support changing data_offset for
raid10, this function must understand new_data_offset.
So add that understanding.
Signed-off-by: NeilBrown <neilb@suse.de>
---
drivers/md/md.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 0db613d..8da63d1 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -886,6 +886,10 @@ int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
rdev->meta_bdev : rdev->bdev;
if (metadata_op)
bio->bi_sector = sector + rdev->sb_start;
+ else if (rdev->mddev->reshape_position != MaxSector &&
+ (rdev->mddev->reshape_backwards ==
+ (sector >= rdev->mddev->reshape_position)))
+ bio->bi_sector = sector + rdev->new_data_offset;
else
bio->bi_sector = sector + rdev->data_offset;
bio_add_page(bio, page, size, 0);
next prev parent reply other threads:[~2012-04-03 5:53 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-03 5:53 [md PATCH 00/10] md patches for 3.5: RAID10 reshape NeilBrown
2012-04-03 5:53 ` [md PATCH 03/10] md/raid5: Use correct data_offset for all IO NeilBrown
2012-04-03 5:53 ` [md PATCH 02/10] md: add possibility to change data-offset for devices NeilBrown
2012-04-03 5:53 ` [md PATCH 01/10] md: allow a reshape operation to be reversed NeilBrown
2012-10-01 9:11 ` Roman Mamedov
2012-10-01 10:15 ` Roman Mamedov
2012-10-02 2:41 ` NeilBrown
2012-04-03 5:53 ` [md PATCH 04/10] md/raid5: allow for change in data_offset while managing a reshape NeilBrown
2012-04-03 5:53 ` [md PATCH 05/10] md/raid10: collect some geometry fields into a dedicated structure NeilBrown
2012-04-03 5:53 ` NeilBrown [this message]
2012-04-03 5:53 ` [md PATCH 10/10] md/raid10: add reshape support NeilBrown
2012-04-03 5:53 ` [md PATCH 08/10] md/raid10: Introduce 'prev' geometry to support reshape NeilBrown
2012-04-03 5:53 ` [md PATCH 07/10] md: use resync_max_sectors for reshape as well as resync NeilBrown
2012-04-03 5:53 ` [md PATCH 09/10] md/raid10: split out interpretation of layout to separate function NeilBrown
2014-03-01 5:08 ` [md PATCH 00/10] md patches for 3.5: RAID10 reshape Phillip Susi
2014-03-01 7:03 ` NeilBrown
2014-03-01 19:33 ` Phillip Susi
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