---

yaml
---
r: 115867
b: refs/heads/master
c: db64fe0
h: refs/heads/master
i:
  115865: 5c642f6
  115863: 54c5a8d
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: cb8f488c33539f096580e202f5438a809195008f
+refs/heads/master: db64fe02258f1507e13fe5212a989922323685ce

trunk/arch/x86/mm/pageattr.c

@@ -792,6 +792,8 @@ static int change_page_attr_set_clr(unsigned long *addr, int numpages,
 	/* Must avoid aliasing mappings in the highmem code */
 	kmap_flush_unused();
 
+	vm_unmap_aliases();
+
 	cpa.vaddr = addr;
 	cpa.numpages = numpages;
 	cpa.mask_set = mask_set;

trunk/arch/x86/xen/enlighten.c

@@ -871,6 +871,7 @@ static void xen_alloc_ptpage(struct mm_struct *mm, unsigned long pfn, unsigned l
 			/* make sure there are no stray mappings of
 			   this page */
 			kmap_flush_unused();
+			vm_unmap_aliases();
 	}
 }
 

trunk/arch/x86/xen/mmu.c

@@ -846,6 +846,7 @@ static void __xen_pgd_pin(struct mm_struct *mm, pgd_t *pgd)
 		/* re-enable interrupts for kmap_flush_unused */
 		xen_mc_issue(0);
 		kmap_flush_unused();
+		vm_unmap_aliases();
 		xen_mc_batch();
 	}
 

trunk/include/linux/vmalloc.h

@@ -2,6 +2,7 @@
 #define _LINUX_VMALLOC_H
 
 #include <linux/spinlock.h>
+#include <linux/init.h>
 #include <asm/page.h>		/* pgprot_t */
 
 struct vm_area_struct;		/* vma defining user mapping in mm_types.h */
@@ -23,7 +24,6 @@ struct vm_area_struct;		/* vma defining user mapping in mm_types.h */
 #endif
 
 struct vm_struct {
-	/* keep next,addr,size together to speedup lookups */
 	struct vm_struct	*next;
 	void			*addr;
 	unsigned long		size;
@@ -37,6 +37,19 @@ struct vm_struct {
 /*
  *	Highlevel APIs for driver use
  */
+extern void vm_unmap_ram(const void *mem, unsigned int count);
+extern void *vm_map_ram(struct page **pages, unsigned int count,
+				int node, pgprot_t prot);
+extern void vm_unmap_aliases(void);
+
+#ifdef CONFIG_MMU
+extern void __init vmalloc_init(void);
+#else
+static inline void vmalloc_init(void)
+{
+}
+#endif
+
 extern void *vmalloc(unsigned long size);
 extern void *vmalloc_user(unsigned long size);
 extern void *vmalloc_node(unsigned long size, int node);

trunk/init/main.c

@@ -27,6 +27,7 @@
 #include <linux/gfp.h>
 #include <linux/percpu.h>
 #include <linux/kmod.h>
+#include <linux/vmalloc.h>
 #include <linux/kernel_stat.h>
 #include <linux/start_kernel.h>
 #include <linux/security.h>
@@ -642,6 +643,7 @@ asmlinkage void __init start_kernel(void)
 		initrd_start = 0;
 	}
 #endif
+	vmalloc_init();
 	vfs_caches_init_early();
 	cpuset_init_early();
 	mem_init();