Merge branch 'topic/lx6464es' into for-linus
[linux-block.git] / fs / xfs / linux-2.6 / xfs_aops.h
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65b3da37 1/*
ad723875 2 * Copyright (c) 2005-2006 Silicon Graphics, Inc.
7b718769 3 * All Rights Reserved.
65b3da37 4 *
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5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
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7 * published by the Free Software Foundation.
8 *
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9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
65b3da37 13 *
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14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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17 */
18#ifndef __XFS_AOPS_H__
19#define __XFS_AOPS_H__
20
21extern struct workqueue_struct *xfsdatad_workqueue;
c626d174 22extern struct workqueue_struct *xfsconvertd_workqueue;
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23extern mempool_t *xfs_ioend_pool;
24
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25/*
26 * xfs_ioend struct manages large extent writes for XFS.
27 * It can manage several multi-page bio's at once.
28 */
65b3da37 29typedef struct xfs_ioend {
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30 struct xfs_ioend *io_list; /* next ioend in chain */
31 unsigned int io_type; /* delalloc / unwritten */
7d04a335 32 int io_error; /* I/O error code */
65b3da37 33 atomic_t io_remaining; /* hold count */
b677c210 34 struct inode *io_inode; /* file being written to */
c1a073bd 35 struct buffer_head *io_buffer_head;/* buffer linked list head */
f6d6d4fc 36 struct buffer_head *io_buffer_tail;/* buffer linked list tail */
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37 size_t io_size; /* size of the extent */
38 xfs_off_t io_offset; /* offset in the file */
39 struct work_struct io_work; /* xfsdatad work queue */
40} xfs_ioend_t;
41
f5e54d6e 42extern const struct address_space_operations xfs_address_space_operations;
c2536668 43extern int xfs_get_blocks(struct inode *, sector_t, struct buffer_head *, int);
f6d6d4fc 44
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45extern void xfs_ioend_init(void);
46extern void xfs_ioend_wait(struct xfs_inode *);
47
ad723875 48#endif /* __XFS_AOPS_H__ */