Changeset 57da95c in mainline for kernel/generic/src/mm/as.c

Timestamp:

2006-09-18T11:47:28Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

29b2bbf

Parents:

f1d1f5d3

Message:

• Create a dedicated slab cache for as_t objects and switch from malloc/free to slab_alloc/slab_free for

them.

• Slightly fix and improve both the kernel and userspace atomic_add() on sparc64.

• More TSB work on the sparc64 front.

File:

• kernel/generic/src/mm/as.c (modified) (5 diffs)

kernel/generic/src/mm/as.c

@@ -85 +85 @@
 as_operations_t *as_operations = NULL;
 
+/**
+ * Slab for as_t objects.
+ */
+static slab_cache_t *as_slab;
+
 /** This lock protects inactive_as_with_asid_head list. It must be acquired before as_t mutex. */
 SPINLOCK_INITIALIZE(inactive_as_with_asid_lock);
@@ -106 +111 @@
 {
         as_arch_init();
+        
+        as_slab = slab_cache_create("as_slab", sizeof(as_t), 0, NULL, NULL, SLAB_CACHE_MAGDEFERRED);
+        
         AS_KERNEL = as_create(FLAG_AS_KERNEL);
         if (!AS_KERNEL)
@@ -120 +128 @@
         as_t *as;
 
-        as = (as_t *) malloc(sizeof(as_t), 0);
+        as = (as_t *) slab_alloc(as_slab, 0);
         link_initialize(&as->inactive_as_with_asid_link);
         mutex_initialize(&as->lock);
@@ -183 +191 @@
         interrupts_restore(ipl);
         
-        free(as);
+        slab_free(as_slab, as);
 }
 
@@ -799 +807 @@
                 }
                 mutex_unlock(&old->lock);
+
+                /*
+                 * Perform architecture-specific tasks when the address space
+                 * is being removed from the CPU.
+                 */
+                as_deinstall_arch(old);
         }