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freebsd-dev/sys/gnu/fs/ext2fs/ext2_vnops.c

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Main code for the ext2fs filesystem. Please refer to the COPYRIGHT.INFO file for GPL restrictions. This code was ported to the BSD platform by Godmar Back <gback@facility.cs.utah.edu> and specifically to FreeBSD by John Dyson. This code is still green and should be used with caution. Additional changes to UFS necessary to make this code work will be commited seperately. Submitted by: Godmar Back <gback@facility.cs.utah.edu> Obtained from: Lites/Mach4
1995-11-05 23:25:12 +00:00
/*
* modified for EXT2FS support in Lites 1.1
*
* Aug 1995, Godmar Back (gback@cs.utah.edu)
* University of Utah, Department of Computer Science
*/
/*
* Copyright (c) 1982, 1986, 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)ext2_vnops.c 8.7 (Berkeley) 2/3/94
*/
#if !defined(__FreeBSD__)
#include "fifo.h"
#include "diagnostic.h"
#endif
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/resourcevar.h>
#include <sys/kernel.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/buf.h>
#include <sys/proc.h>
#include <sys/conf.h>
#include <sys/mount.h>
#include <sys/vnode.h>
#include <sys/malloc.h>
#include <vm/vm.h>
#include <miscfs/specfs/specdev.h>
#include <miscfs/fifofs/fifo.h>
#if !defined(__FreeBSD__)
#include <ufs/ufs/lockf.h>
#else
#include <lockf.h>
#include <sys/signalvar.h>
#endif
#include <ufs/ufs/quota.h>
#include <ufs/ufs/inode.h>
#include <ufs/ufs/dir.h>
#include <ufs/ufs/ufs_extern.h>
#include <gnu/ext2fs/ext2_fs.h>
#include <gnu/ext2fs/ext2_fs_sb.h>
#include <gnu/ext2fs/fs.h>
#include <gnu/ext2fs/ext2_extern.h>
/* Global vfs data structures for ufs. */
Introduced a type `vop_t' for vnode operation functions and used it 1138 times (:-() in casts and a few more times in declarations. This change is null for the i386. The type has to be `typedef int vop_t(void *)' and not `typedef int vop_t()' because `gcc -Wstrict-prototypes' warns about the latter. Since vnode op functions are called with args of different (struct pointer) types, neither of these function types is any use for type checking of the arg, so it would be preferable not to use the complete function type, especially since using the complete type requires adding 1138 casts to avoid compiler warnings and another 40+ casts to reverse the function pointer conversions before calling the functions.
1995-11-09 08:17:23 +00:00
vop_t **ext2_vnodeop_p;
Main code for the ext2fs filesystem. Please refer to the COPYRIGHT.INFO file for GPL restrictions. This code was ported to the BSD platform by Godmar Back <gback@facility.cs.utah.edu> and specifically to FreeBSD by John Dyson. This code is still green and should be used with caution. Additional changes to UFS necessary to make this code work will be commited seperately. Submitted by: Godmar Back <gback@facility.cs.utah.edu> Obtained from: Lites/Mach4
1995-11-05 23:25:12 +00:00
struct vnodeopv_entry_desc ext2_vnodeop_entries[] = {
Introduced a type `vop_t' for vnode operation functions and used it 1138 times (:-() in casts and a few more times in declarations. This change is null for the i386. The type has to be `typedef int vop_t(void *)' and not `typedef int vop_t()' because `gcc -Wstrict-prototypes' warns about the latter. Since vnode op functions are called with args of different (struct pointer) types, neither of these function types is any use for type checking of the arg, so it would be preferable not to use the complete function type, especially since using the complete type requires adding 1138 casts to avoid compiler warnings and another 40+ casts to reverse the function pointer conversions before calling the functions.
1995-11-09 08:17:23 +00:00
{ &vop_default_desc, (vop_t *)vn_default_error },
{ &vop_lookup_desc, (vop_t *)ext2_lookup }, /* lookup */
{ &vop_create_desc, (vop_t *)ufs_create }, /* create */
{ &vop_mknod_desc, (vop_t *)ufs_mknod }, /* mknod */
{ &vop_open_desc, (vop_t *)ufs_open }, /* open */
{ &vop_close_desc, (vop_t *)ufs_close }, /* close */
{ &vop_access_desc, (vop_t *)ufs_access }, /* access */
{ &vop_getattr_desc, (vop_t *)ufs_getattr }, /* getattr */
{ &vop_setattr_desc, (vop_t *)ufs_setattr }, /* setattr */
{ &vop_read_desc, (vop_t *)ext2_read }, /* read */
{ &vop_write_desc, (vop_t *)ext2_write }, /* write */
{ &vop_ioctl_desc, (vop_t *)ufs_ioctl }, /* ioctl */
{ &vop_select_desc, (vop_t *)ufs_select }, /* select */
{ &vop_mmap_desc, (vop_t *)ufs_mmap }, /* mmap */
{ &vop_fsync_desc, (vop_t *)ext2_fsync }, /* fsync */
{ &vop_seek_desc, (vop_t *)ufs_seek }, /* seek */
{ &vop_remove_desc, (vop_t *)ufs_remove }, /* remove */
{ &vop_link_desc, (vop_t *)ufs_link }, /* link */
{ &vop_rename_desc, (vop_t *)ufs_rename }, /* rename */
{ &vop_mkdir_desc, (vop_t *)ufs_mkdir }, /* mkdir */
{ &vop_rmdir_desc, (vop_t *)ufs_rmdir }, /* rmdir */
{ &vop_symlink_desc, (vop_t *)ufs_symlink }, /* symlink */
{ &vop_readdir_desc, (vop_t *)ext2_readdir }, /* readdir */
{ &vop_readlink_desc, (vop_t *)ufs_readlink }, /* readlink */
{ &vop_abortop_desc, (vop_t *)ufs_abortop }, /* abortop */
{ &vop_inactive_desc, (vop_t *)ext2_inactive }, /* inactive */
{ &vop_reclaim_desc, (vop_t *)ufs_reclaim }, /* reclaim */
{ &vop_lock_desc, (vop_t *)ufs_lock }, /* lock */
{ &vop_unlock_desc, (vop_t *)ufs_unlock }, /* unlock */
{ &vop_bmap_desc, (vop_t *)ufs_bmap }, /* bmap */
{ &vop_strategy_desc, (vop_t *)ufs_strategy }, /* strategy */
{ &vop_print_desc, (vop_t *)ufs_print }, /* print */
{ &vop_islocked_desc, (vop_t *)ufs_islocked }, /* islocked */
{ &vop_pathconf_desc, (vop_t *)ufs_pathconf }, /* pathconf */
{ &vop_advlock_desc, (vop_t *)ufs_advlock }, /* advlock */
{ &vop_blkatoff_desc, (vop_t *)ext2_blkatoff }, /* blkatoff */
{ &vop_valloc_desc, (vop_t *)ext2_valloc }, /* valloc */
{ &vop_reallocblks_desc, (vop_t *)ext2_reallocblks }, /* reallocblks */
{ &vop_vfree_desc, (vop_t *)ext2_vfree }, /* vfree */
{ &vop_truncate_desc, (vop_t *)ext2_truncate }, /* truncate */
{ &vop_update_desc, (vop_t *)ext2_update }, /* update */
{ &vop_bwrite_desc, (vop_t *)vn_bwrite }, /* bwrite */
{ NULL, NULL }
Main code for the ext2fs filesystem. Please refer to the COPYRIGHT.INFO file for GPL restrictions. This code was ported to the BSD platform by Godmar Back <gback@facility.cs.utah.edu> and specifically to FreeBSD by John Dyson. This code is still green and should be used with caution. Additional changes to UFS necessary to make this code work will be commited seperately. Submitted by: Godmar Back <gback@facility.cs.utah.edu> Obtained from: Lites/Mach4
1995-11-05 23:25:12 +00:00
};
struct vnodeopv_desc ext2fs_vnodeop_opv_desc =
{ &ext2_vnodeop_p, ext2_vnodeop_entries };
Introduced a type `vop_t' for vnode operation functions and used it 1138 times (:-() in casts and a few more times in declarations. This change is null for the i386. The type has to be `typedef int vop_t(void *)' and not `typedef int vop_t()' because `gcc -Wstrict-prototypes' warns about the latter. Since vnode op functions are called with args of different (struct pointer) types, neither of these function types is any use for type checking of the arg, so it would be preferable not to use the complete function type, especially since using the complete type requires adding 1138 casts to avoid compiler warnings and another 40+ casts to reverse the function pointer conversions before calling the functions.
1995-11-09 08:17:23 +00:00
vop_t **ext2_specop_p;
Main code for the ext2fs filesystem. Please refer to the COPYRIGHT.INFO file for GPL restrictions. This code was ported to the BSD platform by Godmar Back <gback@facility.cs.utah.edu> and specifically to FreeBSD by John Dyson. This code is still green and should be used with caution. Additional changes to UFS necessary to make this code work will be commited seperately. Submitted by: Godmar Back <gback@facility.cs.utah.edu> Obtained from: Lites/Mach4
1995-11-05 23:25:12 +00:00
struct vnodeopv_entry_desc ext2_specop_entries[] = {
Introduced a type `vop_t' for vnode operation functions and used it 1138 times (:-() in casts and a few more times in declarations. This change is null for the i386. The type has to be `typedef int vop_t(void *)' and not `typedef int vop_t()' because `gcc -Wstrict-prototypes' warns about the latter. Since vnode op functions are called with args of different (struct pointer) types, neither of these function types is any use for type checking of the arg, so it would be preferable not to use the complete function type, especially since using the complete type requires adding 1138 casts to avoid compiler warnings and another 40+ casts to reverse the function pointer conversions before calling the functions.
1995-11-09 08:17:23 +00:00
{ &vop_default_desc, (vop_t *)vn_default_error },
{ &vop_lookup_desc, (vop_t *)spec_lookup }, /* lookup */
{ &vop_create_desc, (vop_t *)spec_create }, /* create */
{ &vop_mknod_desc, (vop_t *)spec_mknod }, /* mknod */
{ &vop_open_desc, (vop_t *)spec_open }, /* open */
{ &vop_close_desc, (vop_t *)ufsspec_close }, /* close */
{ &vop_access_desc, (vop_t *)ufs_access }, /* access */
{ &vop_getattr_desc, (vop_t *)ufs_getattr }, /* getattr */
{ &vop_setattr_desc, (vop_t *)ufs_setattr }, /* setattr */
{ &vop_read_desc, (vop_t *)ufsspec_read }, /* read */
{ &vop_write_desc, (vop_t *)ufsspec_write }, /* write */
{ &vop_ioctl_desc, (vop_t *)spec_ioctl }, /* ioctl */
{ &vop_select_desc, (vop_t *)spec_select }, /* select */
{ &vop_mmap_desc, (vop_t *)spec_mmap }, /* mmap */
{ &vop_fsync_desc, (vop_t *)ext2_fsync }, /* fsync */
{ &vop_seek_desc, (vop_t *)spec_seek }, /* seek */
{ &vop_remove_desc, (vop_t *)spec_remove }, /* remove */
{ &vop_link_desc, (vop_t *)spec_link }, /* link */
{ &vop_rename_desc, (vop_t *)spec_rename }, /* rename */
{ &vop_mkdir_desc, (vop_t *)spec_mkdir }, /* mkdir */
{ &vop_rmdir_desc, (vop_t *)spec_rmdir }, /* rmdir */
{ &vop_symlink_desc, (vop_t *)spec_symlink }, /* symlink */
{ &vop_readdir_desc, (vop_t *)spec_readdir }, /* readdir */
{ &vop_readlink_desc, (vop_t *)spec_readlink }, /* readlink */
{ &vop_abortop_desc, (vop_t *)spec_abortop }, /* abortop */
{ &vop_inactive_desc, (vop_t *)ext2_inactive }, /* inactive */
{ &vop_reclaim_desc, (vop_t *)ufs_reclaim }, /* reclaim */
{ &vop_lock_desc, (vop_t *)ufs_lock }, /* lock */
{ &vop_unlock_desc, (vop_t *)ufs_unlock }, /* unlock */
{ &vop_bmap_desc, (vop_t *)spec_bmap }, /* bmap */
{ &vop_strategy_desc, (vop_t *)spec_strategy }, /* strategy */
{ &vop_print_desc, (vop_t *)ufs_print }, /* print */
{ &vop_islocked_desc, (vop_t *)ufs_islocked }, /* islocked */
{ &vop_pathconf_desc, (vop_t *)spec_pathconf }, /* pathconf */
{ &vop_advlock_desc, (vop_t *)spec_advlock }, /* advlock */
{ &vop_blkatoff_desc, (vop_t *)spec_blkatoff }, /* blkatoff */
{ &vop_valloc_desc, (vop_t *)spec_valloc }, /* valloc */
{ &vop_reallocblks_desc, (vop_t *)spec_reallocblks }, /* reallocblks */
{ &vop_vfree_desc, (vop_t *)ext2_vfree }, /* vfree */
{ &vop_truncate_desc, (vop_t *)spec_truncate }, /* truncate */
{ &vop_update_desc, (vop_t *)ext2_update }, /* update */
{ &vop_bwrite_desc, (vop_t *)vn_bwrite }, /* bwrite */
{ NULL, NULL }
Main code for the ext2fs filesystem. Please refer to the COPYRIGHT.INFO file for GPL restrictions. This code was ported to the BSD platform by Godmar Back <gback@facility.cs.utah.edu> and specifically to FreeBSD by John Dyson. This code is still green and should be used with caution. Additional changes to UFS necessary to make this code work will be commited seperately. Submitted by: Godmar Back <gback@facility.cs.utah.edu> Obtained from: Lites/Mach4
1995-11-05 23:25:12 +00:00
};
struct vnodeopv_desc ext2fs_specop_opv_desc =
{ &ext2_specop_p, ext2_specop_entries };
#if FIFO
Introduced a type `vop_t' for vnode operation functions and used it 1138 times (:-() in casts and a few more times in declarations. This change is null for the i386. The type has to be `typedef int vop_t(void *)' and not `typedef int vop_t()' because `gcc -Wstrict-prototypes' warns about the latter. Since vnode op functions are called with args of different (struct pointer) types, neither of these function types is any use for type checking of the arg, so it would be preferable not to use the complete function type, especially since using the complete type requires adding 1138 casts to avoid compiler warnings and another 40+ casts to reverse the function pointer conversions before calling the functions.
1995-11-09 08:17:23 +00:00
vop_t **ext2_fifoop_p;
Main code for the ext2fs filesystem. Please refer to the COPYRIGHT.INFO file for GPL restrictions. This code was ported to the BSD platform by Godmar Back <gback@facility.cs.utah.edu> and specifically to FreeBSD by John Dyson. This code is still green and should be used with caution. Additional changes to UFS necessary to make this code work will be commited seperately. Submitted by: Godmar Back <gback@facility.cs.utah.edu> Obtained from: Lites/Mach4
1995-11-05 23:25:12 +00:00
struct vnodeopv_entry_desc ext2_fifoop_entries[] = {
Introduced a type `vop_t' for vnode operation functions and used it 1138 times (:-() in casts and a few more times in declarations. This change is null for the i386. The type has to be `typedef int vop_t(void *)' and not `typedef int vop_t()' because `gcc -Wstrict-prototypes' warns about the latter. Since vnode op functions are called with args of different (struct pointer) types, neither of these function types is any use for type checking of the arg, so it would be preferable not to use the complete function type, especially since using the complete type requires adding 1138 casts to avoid compiler warnings and another 40+ casts to reverse the function pointer conversions before calling the functions.
1995-11-09 08:17:23 +00:00
{ &vop_default_desc, (vop_t *)vn_default_error },
{ &vop_lookup_desc, (vop_t *)fifo_lookup }, /* lookup */
{ &vop_create_desc, (vop_t *)fifo_create }, /* create */
{ &vop_mknod_desc, (vop_t *)fifo_mknod }, /* mknod */
{ &vop_open_desc, (vop_t *)fifo_open }, /* open */
{ &vop_close_desc, (vop_t *)ufsfifo_close }, /* close */
{ &vop_access_desc, (vop_t *)ufs_access }, /* access */
{ &vop_getattr_desc, (vop_t *)ufs_getattr }, /* getattr */
{ &vop_setattr_desc, (vop_t *)ufs_setattr }, /* setattr */
{ &vop_read_desc, (vop_t *)ufsfifo_read }, /* read */
{ &vop_write_desc, (vop_t *)ufsfifo_write }, /* write */
{ &vop_ioctl_desc, (vop_t *)fifo_ioctl }, /* ioctl */
{ &vop_select_desc, (vop_t *)fifo_select }, /* select */
{ &vop_mmap_desc, (vop_t *)fifo_mmap }, /* mmap */
{ &vop_fsync_desc, (vop_t *)ext2_fsync }, /* fsync */
{ &vop_seek_desc, (vop_t *)fifo_seek }, /* seek */
{ &vop_remove_desc, (vop_t *)fifo_remove }, /* remove */
{ &vop_link_desc, (vop_t *)fifo_link }, /* link */
{ &vop_rename_desc, (vop_t *)fifo_rename }, /* rename */
{ &vop_mkdir_desc, (vop_t *)fifo_mkdir }, /* mkdir */
{ &vop_rmdir_desc, (vop_t *)fifo_rmdir }, /* rmdir */
{ &vop_symlink_desc, (vop_t *)fifo_symlink }, /* symlink */
{ &vop_readdir_desc, (vop_t *)fifo_readdir }, /* readdir */
{ &vop_readlink_desc, (vop_t *)fifo_readlink }, /* readlink */
{ &vop_abortop_desc, (vop_t *)fifo_abortop }, /* abortop */
{ &vop_inactive_desc, (vop_t *)ext2_inactive }, /* inactive */
{ &vop_reclaim_desc, (vop_t *)ufs_reclaim }, /* reclaim */
{ &vop_lock_desc, (vop_t *)ufs_lock }, /* lock */
{ &vop_unlock_desc, (vop_t *)ufs_unlock }, /* unlock */
{ &vop_bmap_desc, (vop_t *)fifo_bmap }, /* bmap */
{ &vop_strategy_desc, (vop_t *)fifo_strategy }, /* strategy */
{ &vop_print_desc, (vop_t *)ufs_print }, /* print */
{ &vop_islocked_desc, (vop_t *)ufs_islocked }, /* islocked */
{ &vop_pathconf_desc, (vop_t *)fifo_pathconf }, /* pathconf */
{ &vop_advlock_desc, (vop_t *)fifo_advlock }, /* advlock */
{ &vop_blkatoff_desc, (vop_t *)fifo_blkatoff }, /* blkatoff */
{ &vop_valloc_desc, (vop_t *)fifo_valloc }, /* valloc */
{ &vop_reallocblks_desc, (vop_t *)fifo_reallocblks }, /* reallocblks */
{ &vop_vfree_desc, (vop_t *)ext2_vfree }, /* vfree */
{ &vop_truncate_desc, (vop_t *)fifo_truncate }, /* truncate */
{ &vop_update_desc, (vop_t *)ext2_update }, /* update */
{ &vop_bwrite_desc, (vop_t *)vn_bwrite }, /* bwrite */
{ NULL, NULL }
Main code for the ext2fs filesystem. Please refer to the COPYRIGHT.INFO file for GPL restrictions. This code was ported to the BSD platform by Godmar Back <gback@facility.cs.utah.edu> and specifically to FreeBSD by John Dyson. This code is still green and should be used with caution. Additional changes to UFS necessary to make this code work will be commited seperately. Submitted by: Godmar Back <gback@facility.cs.utah.edu> Obtained from: Lites/Mach4
1995-11-05 23:25:12 +00:00
};
struct vnodeopv_desc ext2fs_fifoop_opv_desc =
{ &ext2_fifoop_p, ext2_fifoop_entries };
#endif /* FIFO */
#if defined(__FreeBSD__)
VNODEOP_SET(ext2fs_vnodeop_opv_desc);
VNODEOP_SET(ext2fs_specop_opv_desc);
Omitted a '#if FIFO' in ext2_vnops.c Submitted by: Justin Gibbs
1995-11-06 04:05:01 +00:00
#if FIFO
Main code for the ext2fs filesystem. Please refer to the COPYRIGHT.INFO file for GPL restrictions. This code was ported to the BSD platform by Godmar Back <gback@facility.cs.utah.edu> and specifically to FreeBSD by John Dyson. This code is still green and should be used with caution. Additional changes to UFS necessary to make this code work will be commited seperately. Submitted by: Godmar Back <gback@facility.cs.utah.edu> Obtained from: Lites/Mach4
1995-11-05 23:25:12 +00:00
VNODEOP_SET(ext2fs_fifoop_opv_desc);
#endif
Omitted a '#if FIFO' in ext2_vnops.c Submitted by: Justin Gibbs
1995-11-06 04:05:01 +00:00
#endif
Main code for the ext2fs filesystem. Please refer to the COPYRIGHT.INFO file for GPL restrictions. This code was ported to the BSD platform by Godmar Back <gback@facility.cs.utah.edu> and specifically to FreeBSD by John Dyson. This code is still green and should be used with caution. Additional changes to UFS necessary to make this code work will be commited seperately. Submitted by: Godmar Back <gback@facility.cs.utah.edu> Obtained from: Lites/Mach4
1995-11-05 23:25:12 +00:00
/*
* Enabling cluster read/write operations.
*/
#ifdef DEBUG
#include <sys/sysctl.h>
int doclusterread = 1;
struct ctldebug debug11 = { "doclusterread", &doclusterread };
int doclusterwrite = 1;
struct ctldebug debug12 = { "doclusterwrite", &doclusterwrite };
#endif
#if defined(__FreeBSD__)
#define doclusterwrite 1
#define doclusterread 1
#else
/* doclusterwrite is being tested
note that reallocblks is called when it's on, but this is not implemented */
#define doclusterwrite 0
/* doclusterread should work with new pagemove */
#define doclusterread 1
#endif
#include <gnu/ext2fs/ext2_readwrite.c>
/*
* Synch an open file.
*/
/* ARGSUSED */
int
ext2_fsync(ap)
struct vop_fsync_args /* {
struct vnode *a_vp;
struct ucred *a_cred;
int a_waitfor;
struct proc *a_p;
} */ *ap;
{
register struct vnode *vp = ap->a_vp;
register struct buf *bp;
struct timeval tv;
struct buf *nbp;
int s;
/*
* Clean memory object.
* XXX add this to all file systems.
* XXX why is all this fs specific?
*/
#if !defined(__FreeBSD__)
vn_pager_sync(vp, ap->a_waitfor);
#endif
/*
* Flush all dirty buffers associated with a vnode.
*/
ext2_discard_prealloc(VTOI(vp));
loop:
s = splbio();
for (bp = vp->v_dirtyblkhd.lh_first; bp; bp = nbp) {
nbp = bp->b_vnbufs.le_next;
if ((bp->b_flags & B_BUSY))
continue;
if ((bp->b_flags & B_DELWRI) == 0)
panic("ext2_fsync: not dirty");
bremfree(bp);
bp->b_flags |= B_BUSY;
splx(s);
/*
* Wait for I/O associated with indirect blocks to complete,
* since there is no way to quickly wait for them below.
*/
if (bp->b_vp == vp || ap->a_waitfor == MNT_NOWAIT)
(void) bawrite(bp);
else
(void) bwrite(bp);
goto loop;
}
if (ap->a_waitfor == MNT_WAIT) {
while (vp->v_numoutput) {
vp->v_flag |= VBWAIT;
#if !defined(__FreeBSD__)
sleep((caddr_t)&vp->v_numoutput, PRIBIO + 1);
#else
tsleep((caddr_t)&vp->v_numoutput, PRIBIO + 1, "extfsn", 0);
#endif
}
#if DIAGNOSTIC
if (vp->v_dirtyblkhd.lh_first) {
vprint("ext2_fsync: dirty", vp);
goto loop;
}
#endif
}
splx(s);
#if defined(__FreeBSD__)
tv = time;
#else
get_time(&tv);
#endif
return (VOP_UPDATE(ap->a_vp, &tv, &tv, ap->a_waitfor == MNT_WAIT));
}
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