aboutsummaryrefslogtreecommitdiffstats
path: root/fs/xfs/xfs_aops.h
diff options
context:
space:
mode:
authorChristoph Hellwig <hch@infradead.org>2011-08-12 17:21:35 -0400
committerAlex Elder <aelder@sgi.com>2011-08-12 17:21:35 -0400
commitc59d87c460767bc35dafd490139d3cfe78fb8da4 (patch)
tree2aad8261f86488e501d9645bd35d1398906da46d /fs/xfs/xfs_aops.h
parent06f8e2d6754dc631732415b741b5aa58a0f7133f (diff)
xfs: remove subdirectories
Use the move from Linux 2.6 to Linux 3.x as an excuse to kill the annoying subdirectories in the XFS source code. Besides the large amount of file rename the only changes are to the Makefile, a few files including headers with the subdirectory prefix, and the binary sysctl compat code that includes a header under fs/xfs/ from kernel/. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_aops.h')
-rw-r--r--fs/xfs/xfs_aops.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/fs/xfs/xfs_aops.h b/fs/xfs/xfs_aops.h
new file mode 100644
index 000000000000..71f721e1a71f
--- /dev/null
+++ b/fs/xfs/xfs_aops.h
@@ -0,0 +1,68 @@
1/*
2 * Copyright (c) 2005-2006 Silicon Graphics, Inc.
3 * All Rights Reserved.
4 *
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
7 * published by the Free Software Foundation.
8 *
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.
13 *
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
17 */
18#ifndef __XFS_AOPS_H__
19#define __XFS_AOPS_H__
20
21extern struct workqueue_struct *xfsdatad_workqueue;
22extern struct workqueue_struct *xfsconvertd_workqueue;
23extern mempool_t *xfs_ioend_pool;
24
25/*
26 * Types of I/O for bmap clustering and I/O completion tracking.
27 */
28enum {
29 IO_DIRECT = 0, /* special case for direct I/O ioends */
30 IO_DELALLOC, /* mapping covers delalloc region */
31 IO_UNWRITTEN, /* mapping covers allocated but uninitialized data */
32 IO_OVERWRITE, /* mapping covers already allocated extent */
33};
34
35#define XFS_IO_TYPES \
36 { 0, "" }, \
37 { IO_DELALLOC, "delalloc" }, \
38 { IO_UNWRITTEN, "unwritten" }, \
39 { IO_OVERWRITE, "overwrite" }
40
41/*
42 * xfs_ioend struct manages large extent writes for XFS.
43 * It can manage several multi-page bio's at once.
44 */
45typedef struct xfs_ioend {
46 struct xfs_ioend *io_list; /* next ioend in chain */
47 unsigned int io_type; /* delalloc / unwritten */
48 int io_error; /* I/O error code */
49 atomic_t io_remaining; /* hold count */
50 struct inode *io_inode; /* file being written to */
51 struct buffer_head *io_buffer_head;/* buffer linked list head */
52 struct buffer_head *io_buffer_tail;/* buffer linked list tail */
53 size_t io_size; /* size of the extent */
54 xfs_off_t io_offset; /* offset in the file */
55 struct work_struct io_work; /* xfsdatad work queue */
56 struct kiocb *io_iocb;
57 int io_result;
58} xfs_ioend_t;
59
60extern const struct address_space_operations xfs_address_space_operations;
61extern int xfs_get_blocks(struct inode *, sector_t, struct buffer_head *, int);
62
63extern void xfs_ioend_init(void);
64extern void xfs_ioend_wait(struct xfs_inode *);
65
66extern void xfs_count_page_state(struct page *, int *, int *);
67
68#endif /* __XFS_AOPS_H__ */