[PATCH proxmox-backup 1/4] datastore: restrict chunk store mutex scope to crate only

[Christian Ebner <c.ebner@proxmox.com>]

The mutex should never be used outside of the datastore
implementation, all operations on it go through other method calls.

Restrict the scope for the method to get the mutex.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
---
 pbs-datastore/src/chunk_store.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pbs-datastore/src/chunk_store.rs b/pbs-datastore/src/chunk_store.rs
index 68db88eab..2888dea39 100644
--- a/pbs-datastore/src/chunk_store.rs
+++ b/pbs-datastore/src/chunk_store.rs
@@ -423,7 +423,7 @@ impl ChunkStore {
         ProcessLocker::oldest_shared_lock(self.locker.clone().unwrap())
     }
 
-    pub fn mutex(&self) -> &std::sync::Mutex<()> {
+    pub(crate) fn mutex(&self) -> &std::sync::Mutex<()> {
         &self.mutex
     }
 
-- 
2.47.3