aboutsummaryrefslogtreecommitdiffstats
path: root/fs/xfs/linux-2.6/xfs_vnode.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_vnode.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_vnode.c145
1 files changed, 0 insertions, 145 deletions
diff --git a/fs/xfs/linux-2.6/xfs_vnode.c b/fs/xfs/linux-2.6/xfs_vnode.c
deleted file mode 100644
index b52528bbbfff..000000000000
--- a/fs/xfs/linux-2.6/xfs_vnode.c
+++ /dev/null
@@ -1,145 +0,0 @@
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_vnodeops.h"
20#include "xfs_bmap_btree.h"
21#include "xfs_inode.h"
22
23/*
24 * And this gunk is needed for xfs_mount.h"
25 */
26#include "xfs_log.h"
27#include "xfs_trans.h"
28#include "xfs_sb.h"
29#include "xfs_dmapi.h"
30#include "xfs_inum.h"
31#include "xfs_ag.h"
32#include "xfs_mount.h"
33
34
35/*
36 * Dedicated vnode inactive/reclaim sync wait queues.
37 * Prime number of hash buckets since address is used as the key.
38 */
39#define NVSYNC 37
40#define vptosync(v) (&vsync[((unsigned long)v) % NVSYNC])
41static wait_queue_head_t vsync[NVSYNC];
42
43void __init
44vn_init(void)
45{
46 int i;
47
48 for (i = 0; i < NVSYNC; i++)
49 init_waitqueue_head(&vsync[i]);
50}
51
52void
53vn_iowait(
54 xfs_inode_t *ip)
55{
56 wait_queue_head_t *wq = vptosync(ip);
57
58 wait_event(*wq, (atomic_read(&ip->i_iocount) == 0));
59}
60
61void
62vn_iowake(
63 xfs_inode_t *ip)
64{
65 if (atomic_dec_and_test(&ip->i_iocount))
66 wake_up(vptosync(ip));
67}
68
69/*
70 * Volume managers supporting multiple paths can send back ENODEV when the
71 * final path disappears. In this case continuing to fill the page cache
72 * with dirty data which cannot be written out is evil, so prevent that.
73 */
74void
75vn_ioerror(
76 xfs_inode_t *ip,
77 int error,
78 char *f,
79 int l)
80{
81 if (unlikely(error == -ENODEV))
82 xfs_do_force_shutdown(ip->i_mount, SHUTDOWN_DEVICE_REQ, f, l);
83}
84
85#ifdef XFS_INODE_TRACE
86
87/*
88 * Reference count of Linux inode if present, -1 if the xfs_inode
89 * has no associated Linux inode.
90 */
91static inline int xfs_icount(struct xfs_inode *ip)
92{
93 struct inode *vp = VFS_I(ip);
94
95 if (vp)
96 return vn_count(vp);
97 return -1;
98}
99
100#define KTRACE_ENTER(ip, vk, s, line, ra) \
101 ktrace_enter( (ip)->i_trace, \
102/* 0 */ (void *)(__psint_t)(vk), \
103/* 1 */ (void *)(s), \
104/* 2 */ (void *)(__psint_t) line, \
105/* 3 */ (void *)(__psint_t)xfs_icount(ip), \
106/* 4 */ (void *)(ra), \
107/* 5 */ NULL, \
108/* 6 */ (void *)(__psint_t)current_cpu(), \
109/* 7 */ (void *)(__psint_t)current_pid(), \
110/* 8 */ (void *)__return_address, \
111/* 9 */ NULL, NULL, NULL, NULL, NULL, NULL, NULL)
112
113/*
114 * Vnode tracing code.
115 */
116void
117_xfs_itrace_entry(xfs_inode_t *ip, const char *func, inst_t *ra)
118{
119 KTRACE_ENTER(ip, INODE_KTRACE_ENTRY, func, 0, ra);
120}
121
122void
123_xfs_itrace_exit(xfs_inode_t *ip, const char *func, inst_t *ra)
124{
125 KTRACE_ENTER(ip, INODE_KTRACE_EXIT, func, 0, ra);
126}
127
128void
129xfs_itrace_hold(xfs_inode_t *ip, char *file, int line, inst_t *ra)
130{
131 KTRACE_ENTER(ip, INODE_KTRACE_HOLD, file, line, ra);
132}
133
134void
135_xfs_itrace_ref(xfs_inode_t *ip, char *file, int line, inst_t *ra)
136{
137 KTRACE_ENTER(ip, INODE_KTRACE_REF, file, line, ra);
138}
139
140void
141xfs_itrace_rele(xfs_inode_t *ip, char *file, int line, inst_t *ra)
142{
143 KTRACE_ENTER(ip, INODE_KTRACE_RELE, file, line, ra);
144}
145#endif /* XFS_INODE_TRACE */