2 * Copyright (c) 1982, 1986, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
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9 * notice, this list of conditions and the following disclaimer.
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11 * notice, this list of conditions and the following disclaimer in the
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13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
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18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
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33 * @(#)ffs_vnops.c 8.15 (Berkeley) 5/14/95
34 * $FreeBSD: src/sys/ufs/ffs/ffs_vnops.c,v 1.64 2000/01/10 12:04:25 phk Exp $
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/resourcevar.h>
40 #include <sys/signalvar.h>
41 #include <sys/kernel.h>
45 #include <sys/mount.h>
46 #include <sys/vnode.h>
49 #include <machine/limits.h>
52 #include <vm/vm_page.h>
53 #include <vm/vm_object.h>
54 #include <vm/vm_extern.h>
61 #include "ufs_extern.h"
64 #include "ffs_extern.h"
66 static int ffs_fsync (struct vop_fsync_args
*);
67 static int ffs_read (struct vop_read_args
*);
68 static int ffs_write (struct vop_write_args
*);
70 /* Global vfs data structures for ufs. */
71 struct vop_ops ffs_vnode_vops
= {
72 .vop_default
= ufs_vnoperate
,
73 .vop_fsync
= ffs_fsync
,
74 .vop_getpages
= vop_stdgetpages
,
75 .vop_putpages
= vop_stdputpages
,
77 .vop_balloc
= ffs_balloc
,
78 .vop_reallocblks
= ffs_reallocblks
,
79 .vop_write
= ffs_write
82 struct vop_ops ffs_spec_vops
= {
83 .vop_default
= ufs_vnoperatespec
,
84 .vop_fsync
= ffs_fsync
87 struct vop_ops ffs_fifo_vops
= {
88 .vop_default
= ufs_vnoperatefifo
,
89 .vop_fsync
= ffs_fsync
92 #include "ufs_readwrite.c"
97 * ffs_fsync(struct vnode *a_vp, struct ucred *a_cred, int a_waitfor,
101 static int ffs_checkdeferred(struct buf
*bp
);
105 ffs_fsync(struct vop_fsync_args
*ap
)
107 struct vnode
*vp
= ap
->a_vp
;
110 if (vn_isdisk(vp
, NULL
))
111 if (vp
->v_rdev
&& vp
->v_rdev
->si_mountpoint
!= NULL
&&
112 (vp
->v_rdev
->si_mountpoint
->mnt_flag
& MNT_SOFTDEP
))
113 softdep_fsync_mountdev(vp
);
116 * Flush all dirty buffers associated with a vnode.
118 error
= vfsync(vp
, ap
->a_waitfor
, NIADDR
+ 1, ffs_checkdeferred
,
119 softdep_sync_metadata
);
121 error
= ffs_update(vp
, (ap
->a_waitfor
== MNT_WAIT
));
126 ffs_checkdeferred(struct buf
*bp
)
128 if (LIST_FIRST(&bp
->b_dep
) != NULL
&&
129 (bp
->b_flags
& B_DEFERRED
) == 0 &&
130 buf_countdeps(bp
, 0)) {
131 bp
->b_flags
|= B_DEFERRED
;