From: Lars Ellenberg <lars.ellenberg@xxxxxxxxxx>
Or, depending on the way locking is implemented at the call sites,
some updates could be lost (has not been observed).
Signed-off-by: Lars Ellenberg <lars.ellenberg@xxxxxxxxxx>
Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@xxxxxxxxxx>
---
lib/lru_cache.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/lru_cache.c b/lib/lru_cache.c
index dc35464216d3..fec899386238 100644
--- a/lib/lru_cache.c
+++ b/lib/lru_cache.c
@@ -364,7 +364,7 @@ static struct lc_element *__lc_get(struct lru_cache *lc, unsigned int enr, unsig
struct lc_element *e;
PARANOIA_ENTRY();
- if (lc->flags & LC_STARVING) {
+ if (test_bit(__LC_STARVING, &lc->flags)) {
++lc->starving;
RETURN(NULL);
}
@@ -417,7 +417,7 @@ static struct lc_element *__lc_get(struct lru_cache *lc, unsigned int enr, unsig
* the LRU element, we have to wait ...
*/
if (!lc_unused_element_available(lc)) {
- __set_bit(__LC_STARVING, &lc->flags);
+ set_bit(__LC_STARVING, &lc->flags);
RETURN(NULL);
}
--
2.38.1
