linux/net/ceph/pagevec.c

// SPDX-License-Identifier: GPL-2.0
#include <linux/ceph/ceph_debug.h>

#include <linux/module.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/file.h>
#include <linux/namei.h>
#include <linux/writeback.h>

#include <linux/ceph/libceph.h>

void ceph_put_page_vector(struct page **pages, int num_pages, bool dirty)
{ … }
EXPORT_SYMBOL(…);

void ceph_release_page_vector(struct page **pages, int num_pages)
{ … }
EXPORT_SYMBOL(…);

/*
 * allocate a vector new pages
 */
struct page **ceph_alloc_page_vector(int num_pages, gfp_t flags)
{ … }
EXPORT_SYMBOL(…);

/*
 * copy user data into a page vector
 */
int ceph_copy_user_to_page_vector(struct page **pages,
					 const void __user *data,
					 loff_t off, size_t len)
{ … }
EXPORT_SYMBOL(…);

void ceph_copy_to_page_vector(struct page **pages,
				    const void *data,
				    loff_t off, size_t len)
{ … }
EXPORT_SYMBOL(…);

void ceph_copy_from_page_vector(struct page **pages,
				    void *data,
				    loff_t off, size_t len)
{ … }
EXPORT_SYMBOL(…);

/*
 * Zero an extent within a page vector.  Offset is relative to the
 * start of the first page.
 */
void ceph_zero_page_vector_range(int off, int len, struct page **pages)
{ … }
EXPORT_SYMBOL(…);