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#include 

#include 

#include 

struct vm_area_struct;		/* vma defining user mapping in mm_types.h */

/* bits in flags of vmalloc's vm_struct below */

#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 */

#define VM_UNINITIALIZED	0x00000020	/* vm_struct is not fully initialized */

#define VM_NO_GUARD		0x00000040      /* don't add guard page */

#define VM_KASAN		0x00000080      /* has allocated kasan shadow memory */

/* 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

extern void *vmalloc(unsigned long size);

extern void *vzalloc(unsigned long size);

extern void vfree(const void *addr);

extern void *vmap(struct page **pages, unsigned int count,

			unsigned long flags, pgprot_t prot);

extern void vunmap(const void *addr);