Btrfs: fix panic in balance due to EIO

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During build_backref_tree(), if we fail to read a btree node,
we can eventually run into BUG_ON(cache->nr_nodes) that we put
in backref_cache_cleanup(), meaning we have at least one
memory leak.

This frees the backref_node that we's allocated at the very
beginning of build_backref_tree().

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Liu Bo 2016-07-12 10:29:37 -07:00 • committed by David Sterba

parent baf863b9c2

commit 0fd8c3dae1

1 changed files with 4 additions and 0 deletions

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fs/btrfs/relocation.c

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