btrfs: Add read_backup_root

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This function will replace next_root_backup with a much saner/cleaner
interface.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Nikolay Borisov 2019-10-15 18:42:19 +03:00 • committed by David Sterba

parent fc2e4c5b35

commit bd2336b2ac

1 changed files with 44 additions and 0 deletions

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fs/btrfs/disk-io.c

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