2005-09-04 22:18:12 +00:00
|
|
|
/*
|
2006-06-09 05:29:12 +00:00
|
|
|
* Copyright (c) 2005-2006 Silicon Graphics, Inc.
|
2005-11-02 03:58:39 +00:00
|
|
|
* All Rights Reserved.
|
2005-09-04 22:18:12 +00:00
|
|
|
*
|
2005-11-02 03:58:39 +00:00
|
|
|
* This program is free software; you can redistribute it and/or
|
|
|
|
* modify it under the terms of the GNU General Public License as
|
2005-09-04 22:18:12 +00:00
|
|
|
* published by the Free Software Foundation.
|
|
|
|
*
|
2005-11-02 03:58:39 +00:00
|
|
|
* This program is distributed in the hope that it would be useful,
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
* GNU General Public License for more details.
|
2005-09-04 22:18:12 +00:00
|
|
|
*
|
2005-11-02 03:58:39 +00:00
|
|
|
* You should have received a copy of the GNU General Public License
|
|
|
|
* along with this program; if not, write the Free Software Foundation,
|
|
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
2005-09-04 22:18:12 +00:00
|
|
|
*/
|
|
|
|
#ifndef __XFS_AOPS_H__
|
|
|
|
#define __XFS_AOPS_H__
|
|
|
|
|
|
|
|
extern mempool_t *xfs_ioend_pool;
|
|
|
|
|
2010-12-10 08:42:20 +00:00
|
|
|
/*
|
|
|
|
* Types of I/O for bmap clustering and I/O completion tracking.
|
|
|
|
*/
|
|
|
|
enum {
|
2012-05-22 20:56:21 +00:00
|
|
|
XFS_IO_DELALLOC, /* covers delalloc region */
|
|
|
|
XFS_IO_UNWRITTEN, /* covers allocated but uninitialized data */
|
|
|
|
XFS_IO_OVERWRITE, /* covers already allocated extent */
|
2010-12-10 08:42:20 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
#define XFS_IO_TYPES \
|
2012-05-22 20:56:21 +00:00
|
|
|
{ XFS_IO_DELALLOC, "delalloc" }, \
|
|
|
|
{ XFS_IO_UNWRITTEN, "unwritten" }, \
|
|
|
|
{ XFS_IO_OVERWRITE, "overwrite" }
|
2010-12-10 08:42:20 +00:00
|
|
|
|
2006-01-11 04:40:13 +00:00
|
|
|
/*
|
|
|
|
* xfs_ioend struct manages large extent writes for XFS.
|
|
|
|
* It can manage several multi-page bio's at once.
|
|
|
|
*/
|
2005-09-04 22:18:12 +00:00
|
|
|
typedef struct xfs_ioend {
|
2006-01-11 04:40:13 +00:00
|
|
|
struct xfs_ioend *io_list; /* next ioend in chain */
|
|
|
|
unsigned int io_type; /* delalloc / unwritten */
|
2006-06-09 04:58:38 +00:00
|
|
|
int io_error; /* I/O error code */
|
2005-09-04 22:18:12 +00:00
|
|
|
atomic_t io_remaining; /* hold count */
|
2007-08-29 01:46:28 +00:00
|
|
|
struct inode *io_inode; /* file being written to */
|
2005-09-04 22:23:35 +00:00
|
|
|
struct buffer_head *io_buffer_head;/* buffer linked list head */
|
2006-01-11 04:40:13 +00:00
|
|
|
struct buffer_head *io_buffer_tail;/* buffer linked list tail */
|
2005-09-04 22:18:12 +00:00
|
|
|
size_t io_size; /* size of the extent */
|
|
|
|
xfs_off_t io_offset; /* offset in the file */
|
|
|
|
struct work_struct io_work; /* xfsdatad work queue */
|
2012-03-13 08:41:05 +00:00
|
|
|
struct xfs_trans *io_append_trans;/* xact. for size update */
|
2005-09-04 22:18:12 +00:00
|
|
|
} xfs_ioend_t;
|
|
|
|
|
2006-06-28 11:26:44 +00:00
|
|
|
extern const struct address_space_operations xfs_address_space_operations;
|
2015-06-03 23:18:53 +00:00
|
|
|
|
|
|
|
int xfs_get_blocks(struct inode *inode, sector_t offset,
|
|
|
|
struct buffer_head *map_bh, int create);
|
|
|
|
int xfs_get_blocks_direct(struct inode *inode, sector_t offset,
|
|
|
|
struct buffer_head *map_bh, int create);
|
2015-11-03 01:27:22 +00:00
|
|
|
int xfs_get_blocks_dax_fault(struct inode *inode, sector_t offset,
|
|
|
|
struct buffer_head *map_bh, int create);
|
2006-01-11 04:40:13 +00:00
|
|
|
|
2010-06-23 23:46:01 +00:00
|
|
|
extern void xfs_count_page_state(struct page *, int *, int *);
|
2009-12-14 23:14:59 +00:00
|
|
|
|
2006-06-09 05:29:12 +00:00
|
|
|
#endif /* __XFS_AOPS_H__ */
|