Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-hrt
[linux-2.6] / fs / xfs / xfs_iocore.c
1 /*
2  * Copyright (c) 2000-2003,2005 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 #include "xfs.h"
19 #include "xfs_fs.h"
20 #include "xfs_types.h"
21 #include "xfs_bit.h"
22 #include "xfs_log.h"
23 #include "xfs_inum.h"
24 #include "xfs_trans.h"
25 #include "xfs_sb.h"
26 #include "xfs_ag.h"
27 #include "xfs_dir2.h"
28 #include "xfs_dfrag.h"
29 #include "xfs_dmapi.h"
30 #include "xfs_mount.h"
31 #include "xfs_bmap_btree.h"
32 #include "xfs_alloc_btree.h"
33 #include "xfs_ialloc_btree.h"
34 #include "xfs_dir2_sf.h"
35 #include "xfs_attr_sf.h"
36 #include "xfs_dinode.h"
37 #include "xfs_inode.h"
38 #include "xfs_inode_item.h"
39 #include "xfs_itable.h"
40 #include "xfs_btree.h"
41 #include "xfs_alloc.h"
42 #include "xfs_ialloc.h"
43 #include "xfs_bmap.h"
44 #include "xfs_error.h"
45 #include "xfs_rw.h"
46 #include "xfs_quota.h"
47 #include "xfs_trans_space.h"
48 #include "xfs_iomap.h"
49
50
51 STATIC xfs_fsize_t
52 xfs_size_fn(
53         xfs_inode_t             *ip)
54 {
55         return XFS_ISIZE(ip);
56 }
57
58 STATIC int
59 xfs_ioinit(
60         struct xfs_mount        *mp,
61         struct xfs_mount_args   *mntargs,
62         int                     flags)
63 {
64         return xfs_mountfs(mp, flags);
65 }
66
67 xfs_ioops_t     xfs_iocore_xfs = {
68         .xfs_ioinit             = (xfs_ioinit_t) xfs_ioinit,
69         .xfs_bmapi_func         = (xfs_bmapi_t) xfs_bmapi,
70         .xfs_bunmapi_func       = (xfs_bunmapi_t) xfs_bunmapi,
71         .xfs_bmap_eof_func      = (xfs_bmap_eof_t) xfs_bmap_eof,
72         .xfs_iomap_write_direct =
73                         (xfs_iomap_write_direct_t) xfs_iomap_write_direct,
74         .xfs_iomap_write_delay =
75                         (xfs_iomap_write_delay_t) xfs_iomap_write_delay,
76         .xfs_iomap_write_allocate =
77                         (xfs_iomap_write_allocate_t) xfs_iomap_write_allocate,
78         .xfs_iomap_write_unwritten =
79                         (xfs_iomap_write_unwritten_t) xfs_iomap_write_unwritten,
80         .xfs_ilock              = (xfs_lock_t) xfs_ilock,
81         .xfs_lck_map_shared     = (xfs_lck_map_shared_t) xfs_ilock_map_shared,
82         .xfs_ilock_demote       = (xfs_lock_demote_t) xfs_ilock_demote,
83         .xfs_ilock_nowait       = (xfs_lock_nowait_t) xfs_ilock_nowait,
84         .xfs_unlock             = (xfs_unlk_t) xfs_iunlock,
85         .xfs_size_func          = (xfs_size_t) xfs_size_fn,
86         .xfs_iodone             = (xfs_iodone_t) fs_noerr,
87         .xfs_swap_extents_func  = (xfs_swap_extents_t) xfs_swap_extents,
88 };
89
90 void
91 xfs_iocore_inode_reinit(
92         xfs_inode_t     *ip)
93 {
94         xfs_iocore_t    *io = &ip->i_iocore;
95
96         io->io_flags = 0;
97         if (ip->i_d.di_flags & XFS_DIFLAG_REALTIME)
98                 io->io_flags |= XFS_IOCORE_RT;
99         io->io_dmevmask = ip->i_d.di_dmevmask;
100         io->io_dmstate = ip->i_d.di_dmstate;
101 }
102
103 void
104 xfs_iocore_inode_init(
105         xfs_inode_t     *ip)
106 {
107         xfs_iocore_t    *io = &ip->i_iocore;
108         xfs_mount_t     *mp = ip->i_mount;
109
110         io->io_mount = mp;
111 #ifdef DEBUG
112         io->io_lock = &ip->i_lock;
113         io->io_iolock = &ip->i_iolock;
114 #endif
115
116         io->io_obj = (void *)ip;
117
118         xfs_iocore_inode_reinit(ip);
119 }