summaryrefslogtreecommitdiff
path: root/arch/ia64/mm
diff options
context:
space:
mode:
authorThomas Gleixner <tglx@linutronix.de>2008-05-17 16:01:05 +0200
committerThomas Gleixner <tglx@linutronix.de>2008-05-17 16:01:05 +0200
commit0e50a4c6ab94ffe7e5515b86b5df9e5abc8c6b13 (patch)
tree3c688483e71261f564fc43be3157b337ae340dca /arch/ia64/mm
parent34b2cd5b688b012975fcfc3b3970fc3508fa82c4 (diff)
parentf26a3988917913b3d11b2bd741601a2c64ab9204 (diff)
Merge branch 'linus' into x86/pebstip-x86-pebs-2008-05-17-14-01-06
Diffstat (limited to 'arch/ia64/mm')
-rw-r--r--arch/ia64/mm/init.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index fc6c6636ffda..200100ea7610 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -719,3 +719,28 @@ out:
EXPORT_SYMBOL_GPL(remove_memory);
#endif /* CONFIG_MEMORY_HOTREMOVE */
#endif
+
+/*
+ * Even when CONFIG_IA32_SUPPORT is not enabled it is
+ * useful to have the Linux/x86 domain registered to
+ * avoid an attempted module load when emulators call
+ * personality(PER_LINUX32). This saves several milliseconds
+ * on each such call.
+ */
+static struct exec_domain ia32_exec_domain;
+
+static int __init
+per_linux32_init(void)
+{
+ ia32_exec_domain.name = "Linux/x86";
+ ia32_exec_domain.handler = NULL;
+ ia32_exec_domain.pers_low = PER_LINUX32;
+ ia32_exec_domain.pers_high = PER_LINUX32;
+ ia32_exec_domain.signal_map = default_exec_domain.signal_map;
+ ia32_exec_domain.signal_invmap = default_exec_domain.signal_invmap;
+ register_exec_domain(&ia32_exec_domain);
+
+ return 0;
+}
+
+__initcall(per_linux32_init);