btrfs: add a comment for new_bytenr in backref_cache_node

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Add a comment for this field so we know what it is used for.  Previously
we used it to update the backref cache, so people may mistakenly think
it is useless, but in fact exists to make sure the backref cache makes
sense.

Reviewed-by: Boris Burkov <boris@bur.io>
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 2024-10-03 11:43:05 -04:00 • committed by David Sterba

parent b1d4d5d1d8

commit cb7de8ee9c

1 changed files with 6 additions and 0 deletions

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fs/btrfs/backref.h

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