[mirror_ubuntu-artful-kernel.git] / fs / orangefs / orangefs-bufmap.h

/*
 * (C) 2001 Clemson University and The University of Chicago
 *
 * See COPYING in top-level directory.
 */

#ifndef __ORANGEFS_BUFMAP_H
#define __ORANGEFS_BUFMAP_H

struct orangefs_bufmap;

int orangefs_bufmap_size_query(void);

int orangefs_bufmap_shift_query(void);

int orangefs_bufmap_initialize(struct ORANGEFS_dev_map_desc *user_desc);

void orangefs_bufmap_finalize(void);

void orangefs_bufmap_run_down(void);

int orangefs_bufmap_get(struct orangefs_bufmap **mapp, int *buffer_index);

void orangefs_bufmap_put(int buffer_index);

int orangefs_readdir_index_get(struct orangefs_bufmap **mapp, int *buffer_index);

void orangefs_readdir_index_put(int buffer_index);

int orangefs_bufmap_copy_from_iovec(struct orangefs_bufmap *bufmap,
				struct iov_iter *iter,
				int buffer_index,
				size_t size);

int orangefs_bufmap_copy_to_iovec(struct orangefs_bufmap *bufmap,
			      struct iov_iter *iter,
			      int buffer_index,
			      size_t size);

size_t orangefs_bufmap_copy_to_user_task_iovec(struct task_struct *tsk,
					   struct iovec *iovec,
					   unsigned long nr_segs,
					   struct orangefs_bufmap *bufmap,
					   int buffer_index,
					   size_t bytes_to_be_copied);

#endif /* __ORANGEFS_BUFMAP_H */
Commit	Line	Data
f7ab093f MM	1	/*
	2	* (C) 2001 Clemson University and The University of Chicago
	3	*
	4	* See COPYING in top-level directory.
	5	*/
	6
8bb8aefd YL	7	#ifndef __ORANGEFS_BUFMAP_H
8bb8aefd YL	8	#define __ORANGEFS_BUFMAP_H
f7ab093f	9
8bb8aefd	10	struct orangefs_bufmap;
f7ab093f	11
8bb8aefd	12	int orangefs_bufmap_size_query(void);
f7ab093f	13
8bb8aefd	14	int orangefs_bufmap_shift_query(void);
f7ab093f	15
8bb8aefd	16	int orangefs_bufmap_initialize(struct ORANGEFS_dev_map_desc *user_desc);
f7ab093f	17
8bb8aefd	18	void orangefs_bufmap_finalize(void);
f7ab093f	19
ea2c9c9f AV	20	void orangefs_bufmap_run_down(void);
ea2c9c9f AV	21
8bb8aefd	22	int orangefs_bufmap_get(struct orangefs_bufmap *mapp, int buffer_index);
f7ab093f	23
1357d06d	24	void orangefs_bufmap_put(int buffer_index);
f7ab093f	25
7d221485	26	int orangefs_readdir_index_get(struct orangefs_bufmap *mapp, int buffer_index);
f7ab093f	27
82d37f19	28	void orangefs_readdir_index_put(int buffer_index);
f7ab093f	29
8bb8aefd	30	int orangefs_bufmap_copy_from_iovec(struct orangefs_bufmap *bufmap,
4d1c4404 MM	31	struct iov_iter *iter,
	32	int buffer_index,
	33	size_t size);
	34
8bb8aefd	35	int orangefs_bufmap_copy_to_iovec(struct orangefs_bufmap *bufmap,
4d1c4404	36	struct iov_iter *iter,
5c278228 AV	37	int buffer_index,
5c278228 AV	38	size_t size);
f7ab093f	39
8bb8aefd	40	size_t orangefs_bufmap_copy_to_user_task_iovec(struct task_struct *tsk,
f7ab093f MM	41	struct iovec *iovec,
f7ab093f MM	42	unsigned long nr_segs,
8bb8aefd	43	struct orangefs_bufmap *bufmap,
f7ab093f MM	44	int buffer_index,
	45	size_t bytes_to_be_copied);
	46
8bb8aefd	47	#endif /* __ORANGEFS_BUFMAP_H */