[pbs-devel] [PATCH proxmox-backup 4/7] api: admin: trigger sync jobs only on datastore mount

[Hannes Laimer]

Ensure sync jobs are triggered only when the datastore is actually
mounted. If the datastore is already mounted, we don't fail,
but sync jobs should not be re-triggered unnecessarily. This change
prevents redundant sync job execution.

Signed-off-by: Hannes Laimer <h.laimer at proxmox.com>
---
 src/api2/admin/datastore.rs | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/api2/admin/datastore.rs b/src/api2/admin/datastore.rs
index 5e0e99f0b..7b318975d 100644
--- a/src/api2/admin/datastore.rs
+++ b/src/api2/admin/datastore.rs
@@ -2445,14 +2445,14 @@ fn setup_mounted_device(datastore: &DataStoreConfig, tmp_mount_path: &str) -> Re
 /// The reason for the randomized device mounting paths is to avoid two tasks trying to mount to
 /// the same path, this is *very* unlikely since the device is only mounted really shortly, but
 /// technically possible.
-pub fn do_mount_device(datastore: DataStoreConfig) -> Result<(), Error> {
+pub fn do_mount_device(datastore: DataStoreConfig) -> Result<bool, Error> {
     if let Some(uuid) = datastore.backing_device.as_ref() {
         if pbs_datastore::get_datastore_mount_status(&datastore) == Some(true) {
             info!(
                 "device is already mounted at '{}'",
                 datastore.absolute_path()
             );
-            return Ok(());
+            return Ok(false);
         }
         let tmp_mount_path = format!(
             "{}/{:x}",
@@ -2497,7 +2497,7 @@ pub fn do_mount_device(datastore: DataStoreConfig) -> Result<(), Error> {
             datastore.name
         )
     }
-    Ok(())
+    Ok(true)
 }
 
 async fn do_sync_jobs(
@@ -2582,7 +2582,9 @@ pub fn mount(store: String, rpcenv: &mut dyn RpcEnvironment) -> Result<Value, Er
         auth_id.to_string(),
         to_stdout,
         move |_worker| async move {
-            do_mount_device(datastore.clone())?;
+            if !do_mount_device(datastore.clone())? {
+                return Ok(());
+            }
             let Ok((sync_config, _digest)) = pbs_config::sync::config() else {
                 warn!("unable to read sync job config, won't run any sync jobs");
                 return Ok(());
-- 
2.39.5