Changeset a55ddc64 in mainline for kernel/genarch/src/mm/as_ht.c

Timestamp:

2011-11-17T22:29:00Z (12 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

ad12b5ea

Parents:

6b326ea1

Message:

Allocate PTEs from low memory.

• Introduce a dedicated slab cache for pte_t's.
• This should limit the depth of nested page faults.

File:

• kernel/genarch/src/mm/as_ht.c (modified) (2 diffs)

kernel/genarch/src/mm/as_ht.c

@@ -41 +41 @@
 #include <mm/as.h>
 #include <mm/frame.h>
+#include <mm/slab.h>
 #include <typedefs.h>
 #include <memstr.h>
@@ -77 +78 @@
                 hash_table_create(&page_ht, PAGE_HT_ENTRIES, 2, &ht_operations);
                 mutex_initialize(&page_ht_lock, MUTEX_PASSIVE);
+                pte_cache = slab_cache_create("pte_cache", sizeof(pte_t), 0, NULL, NULL,
+                    SLAB_CACHE_MAGDEFERRED);
         }