Commit 24731149 authored Apr 29, 2016 by Ashish Samant Committed by David Sterba May 06, 2016

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>

parent e042d1ec

fs/btrfs/scrub.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);