lru_cache: remove compiled out code

Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com>
Link: https://lore.kernel.org/r/20221122134301.69258-3-christoph.boehmwalder@linbit.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/lib/lru_cache.c b/lib/lru_cache.c
index fec8993..5dd5e4c 100644 (file)
--- a/lib/lru_cache.c
+++ b/lib/lru_cache.c
@@ -60,17 +60,6 @@ int lc_try_lock(struct lru_cache *lc)
        } while (unlikely (val == LC_PARANOIA));
        /* Spin until no-one is inside a PARANOIA_ENTRY()/RETURN() section. */
        return 0 == val;
-#if 0
-       /* Alternative approach, spin in case someone enters or leaves a
-        * PARANOIA_ENTRY()/RETURN() section. */
-       unsigned long old, new, val;
-       do {
-               old = lc->flags & LC_PARANOIA;
-               new = old | LC_LOCKED;
-               val = cmpxchg(&lc->flags, old, new);
-       } while (unlikely (val == (old ^ LC_PARANOIA)));
-       return old == val;
-#endif
 }
 
 /**