Minor scheduler fixes (#24359)

python/sglang/srt/managers/scheduler.py

@@ -2565,8 +2565,7 @@ class Scheduler(
 
     def get_num_allocatable_reqs(self, running_bs):
         res = get_global_server_args().pp_max_micro_batch_size - running_bs
-        if self.pp_size > 1:
-            res = min(res, self.req_to_token_pool.available_size())
+        res = min(res, self.req_to_token_pool.available_size())
         return res
 
     def get_new_batch_prefill(self) -> Optional[ScheduleBatch]:
@@ -2599,7 +2598,7 @@ class Scheduler(
         if self.enable_hierarchical_cache:
             self.tree_cache.check_hicache_events()
 
-        if self.enable_priority_preemption:
+        if self.enable_priority_preemption or self.is_hybrid_swa:
             # Reset batch_is_full to try preemption with a prefill adder.
             self.running_batch.batch_is_full = False