[linux-2.6-block.git] / io_uring / memmap.h

#ifndef IO_URING_MEMMAP_H
#define IO_URING_MEMMAP_H

struct page **io_pin_pages(unsigned long ubuf, unsigned long len, int *npages);
void io_pages_free(struct page ***pages, int npages);
int io_uring_mmap_pages(struct io_ring_ctx *ctx, struct vm_area_struct *vma,
			struct page **pages, int npages);

void *io_pages_map(struct page ***out_pages, unsigned short *npages,
		   size_t size);
void io_pages_unmap(void *ptr, struct page ***pages, unsigned short *npages,
		    bool put_pages);

void *__io_uaddr_map(struct page ***pages, unsigned short *npages,
		     unsigned long uaddr, size_t size);

#ifndef CONFIG_MMU
unsigned int io_uring_nommu_mmap_capabilities(struct file *file);
#endif
unsigned long io_uring_get_unmapped_area(struct file *file, unsigned long addr,
					 unsigned long len, unsigned long pgoff,
					 unsigned long flags);
int io_uring_mmap(struct file *file, struct vm_area_struct *vma);

#endif
Commit	Line	Data
f15ed8b4 JA	1	#ifndef IO_URING_MEMMAP_H
	2	#define IO_URING_MEMMAP_H
	3
	4	struct page *io_pin_pages(unsigned long ubuf, unsigned long len, int npages);
	5	void io_pages_free(struct page ***pages, int npages);
	6	int io_uring_mmap_pages(struct io_ring_ctx ctx, struct vm_area_struct vma,
	7	struct page **pages, int npages);
	8
	9	void io_pages_map(struct page *out_pages, unsigned short npages,
	10	size_t size);
	11	void io_pages_unmap(void ptr, struct page *pages, unsigned short npages,
	12	bool put_pages);
	13
	14	void __io_uaddr_map(struct page *pages, unsigned short npages,
	15	unsigned long uaddr, size_t size);
	16
	17	#ifndef CONFIG_MMU
	18	unsigned int io_uring_nommu_mmap_capabilities(struct file *file);
	19	#endif
	20	unsigned long io_uring_get_unmapped_area(struct file *file, unsigned long addr,
	21	unsigned long len, unsigned long pgoff,
	22	unsigned long flags);
	23	int io_uring_mmap(struct file file, struct vm_area_struct vma);
	24
	25	#endif