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authorFilipe Manana <fdmanana@suse.com>2019-05-06 16:44:12 +0100
committerDavid Sterba <dsterba@suse.com>2019-05-16 14:33:51 +0200
commit4e9845eff5a8027b5181d5bff56a02991fe46d48 (patch)
treed49383efac1e04f415a37a0aa0931cb6703040bc /tools/testing/selftests
parentBtrfs: fix race between ranged fsync and writeback of adjacent ranges (diff)
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Btrfs: tree-checker: detect file extent items with overlapping ranges
Having file extent items with ranges that overlap each other is a serious issue that leads to all sorts of corruptions and crashes (like a BUG_ON() during the course of __btrfs_drop_extents() when it traims file extent items). Therefore teach the tree checker to detect such cases. This is motivated by a recently fixed bug (race between ranged full fsync and writeback or adjacent ranges). Reviewed-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: Qu Wenruo <wqu@suse.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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