btrfs: do not panic in __add_reloc_root

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If we have a duplicate entry for a reloc root then we could have fs
corruption that resulted in a double allocation.  Since this shouldn't
happen unless there is corruption, add an ASSERT(ret != -EEXIST) to all
of the callers of __add_reloc_root() to catch any logic mistakes for
developers, otherwise normal error handling will happen for normal
users.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Josef Bacik 2021-03-12 15:25:30 -05:00 • committed by David Sterba

parent 3c9258632c

commit 57a304cfd4

1 changed files with 5 additions and 1 deletions

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fs/btrfs/relocation.c

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