Changeset e3ce39b in mainline for kernel/genarch/src/acpi/acpi.c

Timestamp:

2010-05-31T19:08:26Z (14 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

6e2bf29

Parents:

a820bf7

Message:

Lock the page tables before working with them on ia32.

File:

• kernel/genarch/src/acpi/acpi.c (modified) (1 diff)

kernel/genarch/src/acpi/acpi.c

@@ -99 +99 @@
 static void map_sdt(struct acpi_sdt_header *sdt)
 {
+        page_table_lock(AS_KERNEL, true);
         page_mapping_insert(AS_KERNEL, (uintptr_t) sdt, (uintptr_t) sdt, PAGE_NOT_CACHEABLE | PAGE_WRITE);
         map_structure((uintptr_t) sdt, sdt->length);
+        page_table_unlock(AS_KERNEL, true);
 }