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btrfs: use assertion helpers for extent buffer write lock counters

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Use the helpers where open coded. On non-debug builds, the warnings will
not trigger and extent_buffer::write_locks become unused and can be
moved to the appropriate section, saving a few bytes.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba
2018-08-24 16:24:26 +02:00
parent e3f1538867
commit c79adfc085
3 changed files with 5 additions and 6 deletions
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3
fs/btrfs/extent_io.h
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@@ -160,8 +160,6 @@ struct extent_buffer {
struct rcu_head rcu_head;
pid_t lock_owner;
/* count of read lock holders on the extent buffer */
atomic_t write_locks;
atomic_t blocking_writers;
atomic_t blocking_readers;
short lock_nested;
@@ -185,6 +183,7 @@ struct extent_buffer {
atomic_t spinning_writers;
atomic_t spinning_readers;
atomic_t read_locks;
atomic_t write_locks;
struct list_head leak_list;
#endif
};