From dab8b29248b3f14f456651a2a6ee9b8fd16d1b3c Mon Sep 17 00:00:00 2001 From: "Trela, Maciej" Date: Mon, 8 Mar 2010 16:02:45 +1100 Subject: md: Add support for Raid0->Raid10 takeover Signed-off-by: Maciej Trela Signed-off-by: NeilBrown --- drivers/md/raid10.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/md/raid10.h') diff --git a/drivers/md/raid10.h b/drivers/md/raid10.h index 59cd1efb8d30..3824a087e17c 100644 --- a/drivers/md/raid10.h +++ b/drivers/md/raid10.h @@ -33,9 +33,16 @@ struct r10_private_data_s { * 1 stripe. */ + sector_t dev_sectors; /* temp copy of mddev->dev_sectors */ + int chunk_shift; /* shift from chunks to sectors */ sector_t chunk_mask; + int scale_disks; /* When starting array, multiply + * each ->raid_disk by this. + * Need for raid0->raid10 migration + */ + struct list_head retry_list; /* queue pending writes and submit them on unplug */ struct bio_list pending_bio_list; @@ -57,6 +64,11 @@ struct r10_private_data_s { mempool_t *r10bio_pool; mempool_t *r10buf_pool; struct page *tmppage; + + /* When taking over an array from a different personality, we store + * the new thread here until we fully activate the array. + */ + struct mdk_thread_s *thread; }; typedef struct r10_private_data_s conf_t; -- cgit v1.2.3