1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * (C) 2001 Clemson University and The University of Chicago
 4 *
 5 * See COPYING in top-level directory.
 6 */
 7
 8#ifndef __ORANGEFS_BUFMAP_H
 9#define __ORANGEFS_BUFMAP_H
10
11int orangefs_bufmap_size_query(void);
12
13int orangefs_bufmap_shift_query(void);
14
15int orangefs_bufmap_initialize(struct ORANGEFS_dev_map_desc *user_desc);
16
17void orangefs_bufmap_finalize(void);
18
19void orangefs_bufmap_run_down(void);
20
21int orangefs_bufmap_get(void);
22
23void orangefs_bufmap_put(int buffer_index);
24
25int orangefs_readdir_index_get(void);
26
27void orangefs_readdir_index_put(int buffer_index);
28
29int orangefs_bufmap_copy_from_iovec(struct iov_iter *iter,
30				int buffer_index,
31				size_t size);
32
33int orangefs_bufmap_copy_to_iovec(struct iov_iter *iter,
34			      int buffer_index,
35			      size_t size);
36
37void orangefs_bufmap_page_fill(void *kaddr, int buffer_index, int slot_index);
38
39#endif /* __ORANGEFS_BUFMAP_H */