fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / include / linux / vmalloc.h

diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 570778d..924e502 100644 (file)
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -4,37 +4,65 @@
 #include <linux/spinlock.h>
 #include <asm/page.h>          /* pgprot_t */
 
+struct vm_area_struct;
+
 /* bits in vm_struct->flags */
 #define VM_IOREMAP     0x00000001      /* ioremap() and friends */
 #define VM_ALLOC       0x00000002      /* vmalloc() */
 #define VM_MAP         0x00000004      /* vmap()ed pages */
+#define VM_USERMAP     0x00000008      /* suitable for remap_vmalloc_range */
+#define VM_VPAGES      0x00000010      /* buffer for pages was vmalloc'ed */
+/* bits [20..32] reserved for arch specific ioremap internals */
+
+/*
+ * Maximum alignment for ioremap() regions.
+ * Can be overriden by arch-specific value.
+ */
+#ifndef IOREMAP_MAX_ORDER
+#define IOREMAP_MAX_ORDER      (7 + PAGE_SHIFT)        /* 128 pages */
+#endif
 
 struct vm_struct {
+       /* keep next,addr,size together to speedup lookups */
+       struct vm_struct        *next;
        void                    *addr;
        unsigned long           size;
        unsigned long           flags;
        struct page             **pages;
        unsigned int            nr_pages;
        unsigned long           phys_addr;
-       struct vm_struct        *next;
 };
 
 /*
  *     Highlevel APIs for driver use
  */
 extern void *vmalloc(unsigned long size);
+extern void *vmalloc_user(unsigned long size);
+extern void *vmalloc_node(unsigned long size, int node);
+extern void *vmalloc_exec(unsigned long size);
 extern void *vmalloc_32(unsigned long size);
-extern void *__vmalloc(unsigned long size, int gfp_mask, pgprot_t prot);
+extern void *vmalloc_32_user(unsigned long size);
+extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot);
+extern void *__vmalloc_area(struct vm_struct *area, gfp_t gfp_mask,
+                               pgprot_t prot);
 extern void vfree(void *addr);
 
 extern void *vmap(struct page **pages, unsigned int count,
                        unsigned long flags, pgprot_t prot);
 extern void vunmap(void *addr);
+
+extern int remap_vmalloc_range(struct vm_area_struct *vma, void *addr,
+                                                       unsigned long pgoff);
  
 /*
  *     Lowlevel-APIs (not for driver use!)
  */
 extern struct vm_struct *get_vm_area(unsigned long size, unsigned long flags);
+extern struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags,
+                                       unsigned long start, unsigned long end);
+extern struct vm_struct *get_vm_area_node(unsigned long size,
+                                         unsigned long flags, int node,
+                                         gfp_t gfp_mask);
 extern struct vm_struct *remove_vm_area(void *addr);
 extern int map_vm_area(struct vm_struct *area, pgprot_t prot,
                        struct page ***pages);