[PATCH] Fix undefined symbols for nommu architecture
Signed-off-by: Luke Yang <luke.adi@gmail.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 26e1663..498ff87 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1051,7 +1051,11 @@
void drop_pagecache(void);
void drop_slab(void);
+#ifndef CONFIG_MMU
+#define randomize_va_space 0
+#else
extern int randomize_va_space;
+#endif
#endif /* __KERNEL__ */
#endif /* _LINUX_MM_H */
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index ebc41bf..c05a2b7 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -636,6 +636,7 @@
.proc_handler = &proc_dointvec,
},
#endif
+#if defined(CONFIG_MMU)
{
.ctl_name = KERN_RANDOMIZE,
.procname = "randomize_va_space",
@@ -644,6 +645,7 @@
.mode = 0644,
.proc_handler = &proc_dointvec,
},
+#endif
#if defined(CONFIG_S390) && defined(CONFIG_SMP)
{
.ctl_name = KERN_SPIN_RETRY,
diff --git a/mm/nommu.c b/mm/nommu.c
index c10262d..99d2102 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -57,6 +57,8 @@
EXPORT_SYMBOL(vfree);
EXPORT_SYMBOL(vmalloc_to_page);
EXPORT_SYMBOL(vmalloc_32);
+EXPORT_SYMBOL(vmap);
+EXPORT_SYMBOL(vunmap);
/*
* Handle all mappings that got truncated by a "truncate()"