Btrfs: bail out gracefully rather than BUG_ON

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If a file's DIR_ITEM key is invalid (due to memory errors) and gets
written to disk, a future lookup_path can end up with kernel panic due
to BUG_ON().

This gets rid of the BUG_ON(), meanwhile output the corrupted key and
return ENOENT if it's invalid.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reported-by: Guillaume Bouchard <bouchard@mercs-eng.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Liu Bo 2017-10-30 11:14:38 -06:00 • committed by David Sterba

parent 619c47f3d4

commit 56a0e706fc

1 changed files with 8 additions and 2 deletions

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fs/btrfs/inode.c

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