From 2699b67223aca6b1450fc2f72e40fada952afc85 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 28 Jul 2011 11:31:47 +1000 Subject: md: load/store badblock list from v1.x metadata Space must have been allocated when array was created. A feature flag is set when the badblock list is non-empty, to ensure old kernels don't load and trust the whole device. We only update the on-disk badblocklist when it has changed. If the badblocklist (or other metadata) is stored on a bad block, we don't cope very well. If metadata has no room for bad block, flag bad-blocks as disabled, and do the same for 0.90 metadata. Signed-off-by: NeilBrown --- drivers/md/md.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/md/md.h') diff --git a/drivers/md/md.h b/drivers/md/md.h index 85af8433f8b8..aea9e9ff8a33 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -55,7 +55,7 @@ struct mdk_rdev_s struct block_device *meta_bdev; struct block_device *bdev; /* block device handle */ - struct page *sb_page; + struct page *sb_page, *bb_page; int sb_loaded; __u64 sb_events; sector_t data_offset; /* start of data in array */ @@ -127,6 +127,9 @@ struct mdk_rdev_s u64 *page; /* badblock list */ int changed; seqlock_t lock; + + sector_t sector; + sector_t size; /* in sectors */ } badblocks; }; -- cgit v1.2.3