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freebsd_amp_hwpstate/sys/ufs/lfs/lfs_vnops.c

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BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
/*
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
* Copyright (c) 1986, 1989, 1991, 1993, 1995
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
* 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.
*
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
* @(#)lfs_vnops.c 8.13 (Berkeley) 6/10/95
Convert select -> poll. Delete 'always succeed' select/poll handlers, replaced with generic call. Flag missing vnode op table entries.
1997-09-14 02:58:12 +00:00
* $Id: lfs_vnops.c,v 1.22 1997/09/02 20:06:49 bde Exp $
BSD 4.4 Lite Kernel Sources
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*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/resourcevar.h>
Add and move declarations to fix all of the warnings from `gcc -Wimplicit' (except in netccitt, netiso and netns) that I didn't notice when I fixed "all" such warnings before.
1995-03-28 07:58:53 +00:00
#include <sys/signalvar.h>
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
#include <sys/kernel.h>
#include <sys/stat.h>
#include <sys/buf.h>
#include <sys/proc.h>
#include <sys/mount.h>
#include <sys/vnode.h>
#include <sys/malloc.h>
#include <vm/vm.h>
Untangled the vm.h include file spaghetti.
1995-12-07 12:48:31 +00:00
#include <vm/vm_prot.h>
Changes from John Dyson and myself: Fixed remaining known bugs in the buffer IO and VM system. vfs_bio.c: Fixed some race conditions and locking bugs. Improved performance by removing some (now) unnecessary code and fixing some broken logic. Fixed process accounting of # of FS outputs. Properly handle NFS interrupts (B_EINTR). (various) Replaced calls to clrbuf() with calls to an optimized routine called vfs_bio_clrbuf(). (various FS sync) Sync out modified vnode_pager backed pages. ffs_vnops.c: Do two passes: Sync out file data first, then indirect blocks. vm_fault.c: Fixed deadly embrace caused by acquiring locks in the wrong order. vnode_pager.c: Changed to use buffer I/O system for writing out modified pages. This should fix the problem with the modification date previous not getting updated. Also dramatically simplifies the code. Note that this is going to change in the future and be implemented via VOP_PUTPAGES(). vm_object.c: Fixed a pile of bugs related to cleaning (vnode) objects. The performance of vm_object_page_clean() is terrible when dealing with huge objects, but this will change when we implement a binary tree to keep the object pages sorted. vm_pageout.c: Fixed broken clustering of pageouts. Fixed race conditions and other lockup style bugs in the scanning of pages. Improved performance.
1995-04-09 06:03:56 +00:00
#include <vm/vm_page.h>
Untangled the vm.h include file spaghetti.
1995-12-07 12:48:31 +00:00
#include <vm/vm_extern.h>
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
#include <miscfs/specfs/specdev.h>
#include <miscfs/fifofs/fifo.h>
#include <ufs/ufs/quota.h>
#include <ufs/ufs/inode.h>
#include <ufs/ufs/ufs_extern.h>
#include <ufs/lfs/lfs.h>
#include <ufs/lfs/lfs_extern.h>
Staticize.
1995-12-17 21:14:36 +00:00
static int lfs_close __P((struct vop_close_args *));
static int lfs_fsync __P((struct vop_fsync_args *));
static int lfs_getattr __P((struct vop_getattr_args *));
static int lfs_inactive __P((struct vop_inactive_args *));
static int lfs_read __P((struct vop_read_args *));
static int lfs_write __P((struct vop_write_args *));
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
/* Global vfs data structures for lfs. */
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 **lfs_vnodeop_p;
Staticize.
1995-12-17 21:14:36 +00:00
static struct vnodeopv_entry_desc lfs_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 *)ufs_lookup }, /* lookup */
Convert select -> poll. Delete 'always succeed' select/poll handlers, replaced with generic call. Flag missing vnode op table entries.
1997-09-14 02:58:12 +00:00
/* XXX: vop_cachedlookup */
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_create_desc, (vop_t *)ufs_create }, /* create */
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
{ &vop_whiteout_desc, (vop_t *)ufs_whiteout }, /* whiteout */
Convert select -> poll. Delete 'always succeed' select/poll handlers, replaced with generic call. Flag missing vnode op table entries.
1997-09-14 02:58:12 +00:00
{ &vop_mknod_desc, (vop_t *)ufs_mknod }, /* mknod */
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_open_desc, (vop_t *)ufs_open }, /* open */
{ &vop_close_desc, (vop_t *)lfs_close }, /* close */
{ &vop_access_desc, (vop_t *)ufs_access }, /* access */
{ &vop_getattr_desc, (vop_t *)lfs_getattr }, /* getattr */
{ &vop_setattr_desc, (vop_t *)ufs_setattr }, /* setattr */
{ &vop_read_desc, (vop_t *)lfs_read }, /* read */
{ &vop_write_desc, (vop_t *)lfs_write }, /* write */
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
{ &vop_lease_desc, (vop_t *)ufs_lease_check }, /* lease */
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_ioctl_desc, (vop_t *)ufs_ioctl }, /* ioctl */
Convert select -> poll. Delete 'always succeed' select/poll handlers, replaced with generic call. Flag missing vnode op table entries.
1997-09-14 02:58:12 +00:00
{ &vop_poll_desc, (vop_t *)ufs_poll }, /* poll */
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
{ &vop_revoke_desc, (vop_t *)ufs_revoke }, /* revoke */
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_mmap_desc, (vop_t *)ufs_mmap }, /* mmap */
{ &vop_fsync_desc, (vop_t *)lfs_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 *)ufs_readdir }, /* readdir */
{ &vop_readlink_desc, (vop_t *)ufs_readlink }, /* readlink */
{ &vop_abortop_desc, (vop_t *)ufs_abortop }, /* abortop */
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
{ &vop_inactive_desc, (vop_t *)ufs_inactive }, /* inactive */
{ &vop_reclaim_desc, (vop_t *)lfs_reclaim }, /* reclaim */
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_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 *)lfs_blkatoff }, /* blkatoff */
{ &vop_valloc_desc, (vop_t *)lfs_valloc }, /* valloc */
Convert select -> poll. Delete 'always succeed' select/poll handlers, replaced with generic call. Flag missing vnode op table entries.
1997-09-14 02:58:12 +00:00
/* XXX: vop_reallocblks */
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_vfree_desc, (vop_t *)lfs_vfree }, /* vfree */
{ &vop_truncate_desc, (vop_t *)lfs_truncate }, /* truncate */
{ &vop_update_desc, (vop_t *)lfs_update }, /* update */
Convert select -> poll. Delete 'always succeed' select/poll handlers, replaced with generic call. Flag missing vnode op table entries.
1997-09-14 02:58:12 +00:00
/* XXX: vop_getpages */
/* XXX: vop_putpages */
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_bwrite_desc, (vop_t *)lfs_bwrite }, /* bwrite */
{ NULL, NULL }
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
};
Staticize.
1995-12-17 21:14:36 +00:00
static struct vnodeopv_desc lfs_vnodeop_opv_desc =
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
{ &lfs_vnodeop_p, lfs_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 **lfs_specop_p;
Staticize.
1995-12-17 21:14:36 +00:00
static struct vnodeopv_entry_desc lfs_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 */
Convert select -> poll. Delete 'always succeed' select/poll handlers, replaced with generic call. Flag missing vnode op table entries.
1997-09-14 02:58:12 +00:00
/* XXX: vop_cachedlookup */
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_create_desc, (vop_t *)spec_create }, /* create */
Convert select -> poll. Delete 'always succeed' select/poll handlers, replaced with generic call. Flag missing vnode op table entries.
1997-09-14 02:58:12 +00:00
/* XXX: vop_whiteout */
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_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 *)lfs_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 */
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
{ &vop_lease_desc, (vop_t *)spec_lease_check }, /* lease */
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_ioctl_desc, (vop_t *)spec_ioctl }, /* ioctl */
Convert select -> poll. Delete 'always succeed' select/poll handlers, replaced with generic call. Flag missing vnode op table entries.
1997-09-14 02:58:12 +00:00
{ &vop_poll_desc, (vop_t *)spec_poll }, /* poll */
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
{ &vop_revoke_desc, (vop_t *)spec_revoke }, /* revoke */
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_mmap_desc, (vop_t *)spec_mmap }, /* mmap */
{ &vop_fsync_desc, (vop_t *)spec_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 */
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
{ &vop_inactive_desc, (vop_t *)ufs_inactive }, /* inactive */
{ &vop_reclaim_desc, (vop_t *)lfs_reclaim }, /* reclaim */
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_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 */
Convert select -> poll. Delete 'always succeed' select/poll handlers, replaced with generic call. Flag missing vnode op table entries.
1997-09-14 02:58:12 +00:00
/* XXX: vop_reallocblks */
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_vfree_desc, (vop_t *)lfs_vfree }, /* vfree */
{ &vop_truncate_desc, (vop_t *)spec_truncate }, /* truncate */
{ &vop_update_desc, (vop_t *)lfs_update }, /* update */
Convert select -> poll. Delete 'always succeed' select/poll handlers, replaced with generic call. Flag missing vnode op table entries.
1997-09-14 02:58:12 +00:00
/* XXX: vop_getpages */
/* XXX: vop_putpages */
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_bwrite_desc, (vop_t *)lfs_bwrite }, /* bwrite */
{ NULL, NULL }
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};
Staticize.
1995-12-17 21:14:36 +00:00
static struct vnodeopv_desc lfs_specop_opv_desc =
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{ &lfs_specop_p, lfs_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_t **lfs_fifoop_p;
Staticize.
1995-12-17 21:14:36 +00:00
static struct vnodeopv_entry_desc lfs_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 */
Convert select -> poll. Delete 'always succeed' select/poll handlers, replaced with generic call. Flag missing vnode op table entries.
1997-09-14 02:58:12 +00:00
/* XXX: vop_cachedlookup */
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_create_desc, (vop_t *)fifo_create }, /* create */
Convert select -> poll. Delete 'always succeed' select/poll handlers, replaced with generic call. Flag missing vnode op table entries.
1997-09-14 02:58:12 +00:00
/* XXX: vop_whiteout */
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_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 *)lfs_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 */
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
{ &vop_lease_desc, (vop_t *)fifo_lease_check }, /* lease */
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_ioctl_desc, (vop_t *)fifo_ioctl }, /* ioctl */
Convert select -> poll. Delete 'always succeed' select/poll handlers, replaced with generic call. Flag missing vnode op table entries.
1997-09-14 02:58:12 +00:00
{ &vop_poll_desc, (vop_t *)fifo_poll }, /* poll */
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
{ &vop_revoke_desc, (vop_t *)fifo_revoke }, /* revoke */
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_mmap_desc, (vop_t *)fifo_mmap }, /* mmap */
{ &vop_fsync_desc, (vop_t *)fifo_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 */
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
{ &vop_inactive_desc, (vop_t *)ufs_inactive }, /* inactive */
{ &vop_reclaim_desc, (vop_t *)lfs_reclaim }, /* reclaim */
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_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 */
Convert select -> poll. Delete 'always succeed' select/poll handlers, replaced with generic call. Flag missing vnode op table entries.
1997-09-14 02:58:12 +00:00
/* XXX: vop_reallocblks */
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_vfree_desc, (vop_t *)lfs_vfree }, /* vfree */
{ &vop_truncate_desc, (vop_t *)fifo_truncate }, /* truncate */
{ &vop_update_desc, (vop_t *)lfs_update }, /* update */
Convert select -> poll. Delete 'always succeed' select/poll handlers, replaced with generic call. Flag missing vnode op table entries.
1997-09-14 02:58:12 +00:00
/* XXX: vop_getpages */
/* XXX: vop_putpages */
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_bwrite_desc, (vop_t *)lfs_bwrite }, /* bwrite */
{ NULL, NULL }
BSD 4.4 Lite Kernel Sources
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};
Staticize.
1995-12-17 21:14:36 +00:00
static struct vnodeopv_desc lfs_fifoop_opv_desc =
BSD 4.4 Lite Kernel Sources
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{ &lfs_fifoop_p, lfs_fifoop_entries };
Implemented loadable VFS modules, and made most existing filesystems loadable. (NFS is a notable exception.)
1994-09-21 03:47:43 +00:00
VNODEOP_SET(lfs_vnodeop_opv_desc);
VNODEOP_SET(lfs_specop_opv_desc);
VNODEOP_SET(lfs_fifoop_opv_desc);
BSD 4.4 Lite Kernel Sources
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#define LFS_READWRITE
#include <ufs/ufs/ufs_readwrite.c>
#undef LFS_READWRITE
/*
* Synch an open file.
*/
/* ARGSUSED */
Staticize.
1995-12-17 21:14:36 +00:00
static int
BSD 4.4 Lite Kernel Sources
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lfs_fsync(ap)
struct vop_fsync_args /* {
struct vnode *a_vp;
struct ucred *a_cred;
int a_waitfor;
struct proc *a_p;
} */ *ap;
{
struct timeval tv;
LFS stability patches. There is still a problem with directory update ordering that can prove fatal during large batches of deletes, but this is much better than it was. I probably won't be putting much more time into this until Seltzer releases her new version of LFS which has fragment support. This should be availible just before USENIX.
1995-01-04 23:46:34 +00:00
int error;
Changes from John Dyson and myself: Fixed remaining known bugs in the buffer IO and VM system. vfs_bio.c: Fixed some race conditions and locking bugs. Improved performance by removing some (now) unnecessary code and fixing some broken logic. Fixed process accounting of # of FS outputs. Properly handle NFS interrupts (B_EINTR). (various) Replaced calls to clrbuf() with calls to an optimized routine called vfs_bio_clrbuf(). (various FS sync) Sync out modified vnode_pager backed pages. ffs_vnops.c: Do two passes: Sync out file data first, then indirect blocks. vm_fault.c: Fixed deadly embrace caused by acquiring locks in the wrong order. vnode_pager.c: Changed to use buffer I/O system for writing out modified pages. This should fix the problem with the modification date previous not getting updated. Also dramatically simplifies the code. Note that this is going to change in the future and be implemented via VOP_PUTPAGES(). vm_object.c: Fixed a pile of bugs related to cleaning (vnode) objects. The performance of vm_object_page_clean() is terrible when dealing with huge objects, but this will change when we implement a binary tree to keep the object pages sorted. vm_pageout.c: Fixed broken clustering of pageouts. Fixed race conditions and other lockup style bugs in the scanning of pages. Improved performance.
1995-04-09 06:03:56 +00:00
Fixed some invalid (non-atomic) accesses to `time', mostly ones of the form `tv = time'. Use a new function gettime(). The current version just forces atomicicity without fixing precision or efficiency bugs. Simplified some related valid accesses by using the central function.
1997-03-22 06:53:45 +00:00
gettime(&tv);
LFS stability patches. There is still a problem with directory update ordering that can prove fatal during large batches of deletes, but this is much better than it was. I probably won't be putting much more time into this until Seltzer releases her new version of LFS which has fragment support. This should be availible just before USENIX.
1995-01-04 23:46:34 +00:00
error = (VOP_UPDATE(ap->a_vp, &tv, &tv,
BSD 4.4 Lite Kernel Sources
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ap->a_waitfor == MNT_WAIT ? LFS_SYNC : 0));
LFS stability patches. There is still a problem with directory update ordering that can prove fatal during large batches of deletes, but this is much better than it was. I probably won't be putting much more time into this until Seltzer releases her new version of LFS which has fragment support. This should be availible just before USENIX.
1995-01-04 23:46:34 +00:00
if(ap->a_waitfor == MNT_WAIT && ap->a_vp->v_dirtyblkhd.lh_first != NULL)
panic("lfs_fsync: dirty bufs");
return( error );
BSD 4.4 Lite Kernel Sources
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}
/*
* These macros are used to bracket UFS directory ops, so that we can
* identify all the pages touched during directory ops which need to
* be ordered and flushed atomically, so that they may be recovered.
*/
#define SET_DIROP(fs) { \
if ((fs)->lfs_writer) \
tsleep(&(fs)->lfs_dirops, PRIBIO + 1, "lfs_dirop", 0); \
++(fs)->lfs_dirops; \
(fs)->lfs_doifile = 1; \
}
#define SET_ENDOP(fs) { \
--(fs)->lfs_dirops; \
if (!(fs)->lfs_dirops) \
wakeup(&(fs)->lfs_writer); \
}
#define MARK_VNODE(dvp) (dvp)->v_flag |= VDIROP
/* XXX hack to avoid calling ITIMES in getattr */
Staticize.
1995-12-17 21:14:36 +00:00
static int
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lfs_getattr(ap)
struct vop_getattr_args /* {
struct vnode *a_vp;
struct vattr *a_vap;
struct ucred *a_cred;
struct proc *a_p;
} */ *ap;
{
register struct vnode *vp = ap->a_vp;
register struct inode *ip = VTOI(vp);
register struct vattr *vap = ap->a_vap;
/*
* Copy from inode table
*/
vap->va_fsid = ip->i_dev;
vap->va_fileid = ip->i_number;
vap->va_mode = ip->i_mode & ~IFMT;
vap->va_nlink = ip->i_nlink;
vap->va_uid = ip->i_uid;
vap->va_gid = ip->i_gid;
vap->va_rdev = (dev_t)ip->i_rdev;
vap->va_size = ip->i_din.di_size;
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
vap->va_atime.tv_sec = ip->i_atime;
vap->va_atime.tv_nsec = ip->i_atimensec;
vap->va_mtime.tv_sec = ip->i_mtime;
vap->va_mtime.tv_nsec = ip->i_mtimensec;
vap->va_ctime.tv_sec = ip->i_ctime;
vap->va_ctime.tv_nsec = ip->i_ctimensec;
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vap->va_flags = ip->i_flags;
vap->va_gen = ip->i_gen;
/* this doesn't belong here */
if (vp->v_type == VBLK)
vap->va_blocksize = BLKDEV_IOSIZE;
else if (vp->v_type == VCHR)
vap->va_blocksize = MAXBSIZE;
else
vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize;
vap->va_bytes = dbtob(ip->i_blocks);
vap->va_type = vp->v_type;
vap->va_filerev = ip->i_modrev;
return (0);
}
/*
* Close called
*
* XXX -- we were using ufs_close, but since it updates the
* times on the inode, we might need to bump the uinodes
* count.
*/
/* ARGSUSED */
Staticize.
1995-12-17 21:14:36 +00:00
static int
BSD 4.4 Lite Kernel Sources
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lfs_close(ap)
struct vop_close_args /* {
struct vnode *a_vp;
int a_fflag;
struct ucred *a_cred;
struct proc *a_p;
} */ *ap;
{
register struct vnode *vp = ap->a_vp;
register struct inode *ip = VTOI(vp);
int mod;
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
simple_lock(&vp->v_interlock);
if (vp->v_usecount > 1) {
BSD 4.4 Lite Kernel Sources
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mod = ip->i_flag & IN_MODIFIED;
ITIMES(ip, &time, &time);
if (!mod && ip->i_flag & IN_MODIFIED)
ip->i_lfs->lfs_uinodes++;
}
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
simple_unlock(&vp->v_interlock);
BSD 4.4 Lite Kernel Sources
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return (0);
}
/*
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
* Reclaim an inode so that it can be used for other purposes.
BSD 4.4 Lite Kernel Sources
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*/
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
int
lfs_reclaim(ap)
struct vop_reclaim_args /* {
BSD 4.4 Lite Kernel Sources
1994-05-24 10:09:53 +00:00
struct vnode *a_vp;
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
struct proc *a_p;
BSD 4.4 Lite Kernel Sources
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} */ *ap;
{
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
register struct vnode *vp = ap->a_vp;
int error;
Remove trailing whitespace.
1995-05-30 08:16:23 +00:00
Merged the rest of lfs from Lite2. It compiles (uncleanly) but is as unlikely to work as before.
1997-03-23 00:45:27 +00:00
if (error = ufs_reclaim(vp, ap->a_p))
return (error);
FREE(vp->v_data, M_LFSNODE);
vp->v_data = NULL;
return (0);
BSD 4.4 Lite Kernel Sources
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}