btrfs: add assertion helpers for extent buffer write lock counters

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The write_locks are a simple counter to track locking balance and used
to assert tree locks.  Add helpers to make it conditionally work only in
DEBUG builds.  Will be used in followup patches.

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

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David Sterba 2018-08-24 16:20:02 +02:00

parent 5c9c799ab7

commit e3f1538867

1 changed files with 18 additions and 5 deletions

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23

fs/btrfs/locking.c

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