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btrfs: Fix BUG_ON condition in scrub_setup_recheck_block() 

pagev array in scrub_block{} is of size SCRUB_MAX_PAGES_PER_BLOCK.
page_index should be checked with the same to trigger BUG_ON().

Signed-off-by: Ashish Samant <ashish.samant@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Ashish Samant 2016-04-29 18:33:59 -07:00 committed by David Sterba
parent e042d1ec44
commit 2473114981
1 changed files with 1 additions and 1 deletions
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fs/btrfs/scrub.c
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@ -1350,7 +1350,7 @@ static int scrub_setup_recheck_block(struct scrub_block *original_sblock,
recover->bbio = bbio;
recover->map_length = mapped_length;
BUG_ON(page_index >= SCRUB_PAGES_PER_RD_BIO);
BUG_ON(page_index >= SCRUB_MAX_PAGES_PER_BLOCK);
nmirrors = min(scrub_nr_raid_mirrors(bbio), BTRFS_MAX_MIRRORS);