Merge pull request #24705 from owncloud/locking-mark-reload-free-9

[9.0] free up memory when releasing the last shared lock

1 files changed, 3 insertions, 0 deletions

diff --git a/lib/private/lock/abstractlockingprovider.php b/lib/private/lock/abstractlockingprovider.php
index 7dee8c709a0..81136c5ee45 100644
--- a/lib/private/lock/abstractlockingprovider.php
+++ b/lib/private/lock/abstractlockingprovider.php
@@ -77,6 +77,9 @@ abstract class AbstractLockingProvider implements ILockingProvider {
 		if ($type === self::LOCK_SHARED) {
 			if (isset($this->acquiredLocks['shared'][$path]) and $this->acquiredLocks['shared'][$path] > 0) {
 				$this->acquiredLocks['shared'][$path]--;
+				if ($this->acquiredLocks['shared'][$path] === 0) {
+					unset($this->acquiredLocks['shared'][$path]);
+				}
 			}
 		} else if ($type === self::LOCK_EXCLUSIVE) {
 			unset($this->acquiredLocks['exclusive'][$path]);