schedule(): only load page table during context switch if it's different

2016-12-02 11:19:23 +09:00
parent 8129dec2f7
commit 4ab37dd34a
1 changed files with 3 additions and 1 deletions
--- a/kernel/process.c
+++ b/kernel/process.c
@@ -2724,7 +2724,9 @@ redo:
 			restore_fp_regs(next);
 		}

-		ihk_mc_load_page_table(next->vm->address_space->page_table);
+		if (prev && prev->vm->address_space->page_table !=
+				next->vm->address_space->page_table)
+			ihk_mc_load_page_table(next->vm->address_space->page_table);

 		dkprintf("[%d] schedule: tlsblock_base: 0x%lX\n",
 		         ihk_mc_get_processor_id(), next->tlsblock_base);