/*
- * Copyright (c) 1982, 1986, 1989 Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1986, 1989, 1991, 1993
+ * The Regents of the University of California. All rights reserved.
*
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley. The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * %sccs.include.redist.c%
*
- * @(#)lfs_vnops.c 7.29 (Berkeley) %G%
- */
-
-#include "param.h"
-#include "systm.h"
-#include "user.h"
-#include "kernel.h"
-#include "file.h"
-#include "stat.h"
-#include "buf.h"
-#include "proc.h"
-#include "uio.h"
-#include "socket.h"
-#include "socketvar.h"
-#include "conf.h"
-#include "mount.h"
-#include "vnode.h"
-#include "../ufs/inode.h"
-#include "../ufs/fs.h"
-#include "../ufs/quota.h"
-
-/*
- * Global vfs data structures for ufs
- */
-
-int ufs_lookup(),
- ufs_create(),
- ufs_mknod(),
- ufs_open(),
- ufs_close(),
- ufs_access(),
- ufs_getattr(),
- ufs_setattr(),
- ufs_read(),
- ufs_write(),
- ufs_ioctl(),
- ufs_select(),
- ufs_mmap(),
- ufs_fsync(),
- ufs_seek(),
- ufs_remove(),
- ufs_link(),
- ufs_rename(),
- ufs_mkdir(),
- ufs_rmdir(),
- ufs_symlink(),
- ufs_readdir(),
- ufs_readlink(),
- ufs_abortop(),
- ufs_inactive(),
- ufs_reclaim(),
- ufs_lock(),
- ufs_unlock(),
- ufs_bmap(),
- ufs_strategy(),
- ufs_print(),
- ufs_islocked();
-
-struct vnodeops ufs_vnodeops = {
- ufs_lookup, /* lookup */
- ufs_create, /* create */
- ufs_mknod, /* mknod */
- ufs_open, /* open */
- ufs_close, /* close */
- ufs_access, /* access */
- ufs_getattr, /* getattr */
- ufs_setattr, /* setattr */
- ufs_read, /* read */
- ufs_write, /* write */
- ufs_ioctl, /* ioctl */
- ufs_select, /* select */
- ufs_mmap, /* mmap */
- ufs_fsync, /* fsync */
- ufs_seek, /* seek */
- ufs_remove, /* remove */
- ufs_link, /* link */
- ufs_rename, /* rename */
- ufs_mkdir, /* mkdir */
- ufs_rmdir, /* rmdir */
- ufs_symlink, /* symlink */
- ufs_readdir, /* readdir */
- ufs_readlink, /* readlink */
- ufs_abortop, /* abortop */
- ufs_inactive, /* inactive */
- ufs_reclaim, /* reclaim */
- ufs_lock, /* lock */
- ufs_unlock, /* unlock */
- ufs_bmap, /* bmap */
- ufs_strategy, /* strategy */
- ufs_print, /* print */
- ufs_islocked, /* islocked */
+ * @(#)lfs_vnops.c 8.2 (Berkeley) %G%
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/namei.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>
+
+#include <ufs/ufs/quota.h>
+#include <ufs/ufs/inode.h>
+#include <ufs/ufs/dir.h>
+#include <ufs/ufs/ufsmount.h>
+#include <ufs/ufs/ufs_extern.h>
+
+#include <ufs/lfs/lfs.h>
+#include <ufs/lfs/lfs_extern.h>
+
+/* Global vfs data structures for lfs. */
+int (**lfs_vnodeop_p)();
+struct vnodeopv_entry_desc lfs_vnodeop_entries[] = {
+ { &vop_default_desc, vn_default_error },
+ { &vop_lookup_desc, ufs_lookup }, /* lookup */
+ { &vop_create_desc, ufs_create }, /* create */
+ { &vop_mknod_desc, ufs_mknod }, /* mknod */
+ { &vop_open_desc, ufs_open }, /* open */
+ { &vop_close_desc, lfs_close }, /* close */
+ { &vop_access_desc, ufs_access }, /* access */
+ { &vop_getattr_desc, lfs_getattr }, /* getattr */
+ { &vop_setattr_desc, ufs_setattr }, /* setattr */
+ { &vop_read_desc, lfs_read }, /* read */
+ { &vop_write_desc, lfs_write }, /* write */
+ { &vop_ioctl_desc, ufs_ioctl }, /* ioctl */
+ { &vop_select_desc, ufs_select }, /* select */
+ { &vop_mmap_desc, ufs_mmap }, /* mmap */
+ { &vop_fsync_desc, lfs_fsync }, /* fsync */
+ { &vop_seek_desc, ufs_seek }, /* seek */
+ { &vop_remove_desc, ufs_remove }, /* remove */
+ { &vop_link_desc, ufs_link }, /* link */
+ { &vop_rename_desc, ufs_rename }, /* rename */
+ { &vop_mkdir_desc, ufs_mkdir }, /* mkdir */
+ { &vop_rmdir_desc, ufs_rmdir }, /* rmdir */
+ { &vop_symlink_desc, ufs_symlink }, /* symlink */
+ { &vop_readdir_desc, ufs_readdir }, /* readdir */
+ { &vop_readlink_desc, ufs_readlink }, /* readlink */
+ { &vop_abortop_desc, ufs_abortop }, /* abortop */
+ { &vop_inactive_desc, ufs_inactive }, /* inactive */
+ { &vop_reclaim_desc, ufs_reclaim }, /* reclaim */
+ { &vop_lock_desc, ufs_lock }, /* lock */
+ { &vop_unlock_desc, ufs_unlock }, /* unlock */
+ { &vop_bmap_desc, ufs_bmap }, /* bmap */
+ { &vop_strategy_desc, ufs_strategy }, /* strategy */
+ { &vop_print_desc, ufs_print }, /* print */
+ { &vop_islocked_desc, ufs_islocked }, /* islocked */
+ { &vop_pathconf_desc, ufs_pathconf }, /* pathconf */
+ { &vop_advlock_desc, ufs_advlock }, /* advlock */
+ { &vop_blkatoff_desc, lfs_blkatoff }, /* blkatoff */
+ { &vop_valloc_desc, lfs_valloc }, /* valloc */
+ { &vop_vfree_desc, lfs_vfree }, /* vfree */
+ { &vop_truncate_desc, lfs_truncate }, /* truncate */
+ { &vop_update_desc, lfs_update }, /* update */
+ { &vop_bwrite_desc, lfs_bwrite }, /* bwrite */
+ { (struct vnodeop_desc*)NULL, (int(*)())NULL }
};
-
-int spec_lookup(),
- spec_open(),
- ufsspec_read(),
- ufsspec_write(),
- spec_strategy(),
- spec_bmap(),
- spec_ioctl(),
- spec_select(),
- ufsspec_close(),
- spec_badop(),
- spec_nullop();
-
-struct vnodeops spec_inodeops = {
- spec_lookup, /* lookup */
- spec_badop, /* create */
- spec_badop, /* mknod */
- spec_open, /* open */
- ufsspec_close, /* close */
- ufs_access, /* access */
- ufs_getattr, /* getattr */
- ufs_setattr, /* setattr */
- ufsspec_read, /* read */
- ufsspec_write, /* write */
- spec_ioctl, /* ioctl */
- spec_select, /* select */
- spec_badop, /* mmap */
- spec_nullop, /* fsync */
- spec_badop, /* seek */
- spec_badop, /* remove */
- spec_badop, /* link */
- spec_badop, /* rename */
- spec_badop, /* mkdir */
- spec_badop, /* rmdir */
- spec_badop, /* symlink */
- spec_badop, /* readdir */
- spec_badop, /* readlink */
- spec_badop, /* abortop */
- ufs_inactive, /* inactive */
- ufs_reclaim, /* reclaim */
- ufs_lock, /* lock */
- ufs_unlock, /* unlock */
- spec_bmap, /* bmap */
- spec_strategy, /* strategy */
- ufs_print, /* print */
- ufs_islocked, /* islocked */
-};
-
-enum vtype iftovt_tab[8] = {
- VNON, VCHR, VDIR, VBLK, VREG, VLNK, VSOCK, VBAD,
+struct vnodeopv_desc lfs_vnodeop_opv_desc =
+ { &lfs_vnodeop_p, lfs_vnodeop_entries };
+
+int (**lfs_specop_p)();
+struct vnodeopv_entry_desc lfs_specop_entries[] = {
+ { &vop_default_desc, vn_default_error },
+ { &vop_lookup_desc, spec_lookup }, /* lookup */
+ { &vop_create_desc, spec_create }, /* create */
+ { &vop_mknod_desc, spec_mknod }, /* mknod */
+ { &vop_open_desc, spec_open }, /* open */
+ { &vop_close_desc, ufsspec_close }, /* close */
+ { &vop_access_desc, ufs_access }, /* access */
+ { &vop_getattr_desc, lfs_getattr }, /* getattr */
+ { &vop_setattr_desc, ufs_setattr }, /* setattr */
+ { &vop_read_desc, ufsspec_read }, /* read */
+ { &vop_write_desc, ufsspec_write }, /* write */
+ { &vop_ioctl_desc, spec_ioctl }, /* ioctl */
+ { &vop_select_desc, spec_select }, /* select */
+ { &vop_mmap_desc, spec_mmap }, /* mmap */
+ { &vop_fsync_desc, spec_fsync }, /* fsync */
+ { &vop_seek_desc, spec_seek }, /* seek */
+ { &vop_remove_desc, spec_remove }, /* remove */
+ { &vop_link_desc, spec_link }, /* link */
+ { &vop_rename_desc, spec_rename }, /* rename */
+ { &vop_mkdir_desc, spec_mkdir }, /* mkdir */
+ { &vop_rmdir_desc, spec_rmdir }, /* rmdir */
+ { &vop_symlink_desc, spec_symlink }, /* symlink */
+ { &vop_readdir_desc, spec_readdir }, /* readdir */
+ { &vop_readlink_desc, spec_readlink }, /* readlink */
+ { &vop_abortop_desc, spec_abortop }, /* abortop */
+ { &vop_inactive_desc, ufs_inactive }, /* inactive */
+ { &vop_reclaim_desc, ufs_reclaim }, /* reclaim */
+ { &vop_lock_desc, ufs_lock }, /* lock */
+ { &vop_unlock_desc, ufs_unlock }, /* unlock */
+ { &vop_bmap_desc, spec_bmap }, /* bmap */
+ { &vop_strategy_desc, spec_strategy }, /* strategy */
+ { &vop_print_desc, ufs_print }, /* print */
+ { &vop_islocked_desc, ufs_islocked }, /* islocked */
+ { &vop_pathconf_desc, spec_pathconf }, /* pathconf */
+ { &vop_advlock_desc, spec_advlock }, /* advlock */
+ { &vop_blkatoff_desc, spec_blkatoff }, /* blkatoff */
+ { &vop_valloc_desc, spec_valloc }, /* valloc */
+ { &vop_vfree_desc, lfs_vfree }, /* vfree */
+ { &vop_truncate_desc, spec_truncate }, /* truncate */
+ { &vop_update_desc, lfs_update }, /* update */
+ { &vop_bwrite_desc, lfs_bwrite }, /* bwrite */
+ { (struct vnodeop_desc*)NULL, (int(*)())NULL }
};
-int vttoif_tab[8] = {
- 0, IFREG, IFDIR, IFBLK, IFCHR, IFLNK, IFSOCK, IFMT,
+struct vnodeopv_desc lfs_specop_opv_desc =
+ { &lfs_specop_p, lfs_specop_entries };
+
+#ifdef FIFO
+int (**lfs_fifoop_p)();
+struct vnodeopv_entry_desc lfs_fifoop_entries[] = {
+ { &vop_default_desc, vn_default_error },
+ { &vop_lookup_desc, fifo_lookup }, /* lookup */
+ { &vop_create_desc, fifo_create }, /* create */
+ { &vop_mknod_desc, fifo_mknod }, /* mknod */
+ { &vop_open_desc, fifo_open }, /* open */
+ { &vop_close_desc, ufsfifo_close }, /* close */
+ { &vop_access_desc, ufs_access }, /* access */
+ { &vop_getattr_desc, lfs_getattr }, /* getattr */
+ { &vop_setattr_desc, ufs_setattr }, /* setattr */
+ { &vop_read_desc, ufsfifo_read }, /* read */
+ { &vop_write_desc, ufsfifo_write }, /* write */
+ { &vop_ioctl_desc, fifo_ioctl }, /* ioctl */
+ { &vop_select_desc, fifo_select }, /* select */
+ { &vop_mmap_desc, fifo_mmap }, /* mmap */
+ { &vop_fsync_desc, fifo_fsync }, /* fsync */
+ { &vop_seek_desc, fifo_seek }, /* seek */
+ { &vop_remove_desc, fifo_remove }, /* remove */
+ { &vop_link_desc, fifo_link }, /* link */
+ { &vop_rename_desc, fifo_rename }, /* rename */
+ { &vop_mkdir_desc, fifo_mkdir }, /* mkdir */
+ { &vop_rmdir_desc, fifo_rmdir }, /* rmdir */
+ { &vop_symlink_desc, fifo_symlink }, /* symlink */
+ { &vop_readdir_desc, fifo_readdir }, /* readdir */
+ { &vop_readlink_desc, fifo_readlink }, /* readlink */
+ { &vop_abortop_desc, fifo_abortop }, /* abortop */
+ { &vop_inactive_desc, ufs_inactive }, /* inactive */
+ { &vop_reclaim_desc, ufs_reclaim }, /* reclaim */
+ { &vop_lock_desc, ufs_lock }, /* lock */
+ { &vop_unlock_desc, ufs_unlock }, /* unlock */
+ { &vop_bmap_desc, fifo_bmap }, /* bmap */
+ { &vop_strategy_desc, fifo_strategy }, /* strategy */
+ { &vop_print_desc, ufs_print }, /* print */
+ { &vop_islocked_desc, ufs_islocked }, /* islocked */
+ { &vop_pathconf_desc, fifo_pathconf }, /* pathconf */
+ { &vop_advlock_desc, fifo_advlock }, /* advlock */
+ { &vop_blkatoff_desc, fifo_blkatoff }, /* blkatoff */
+ { &vop_valloc_desc, fifo_valloc }, /* valloc */
+ { &vop_vfree_desc, lfs_vfree }, /* vfree */
+ { &vop_truncate_desc, fifo_truncate }, /* truncate */
+ { &vop_update_desc, lfs_update }, /* update */
+ { &vop_bwrite_desc, lfs_bwrite }, /* bwrite */
+ { (struct vnodeop_desc*)NULL, (int(*)())NULL }
};
+struct vnodeopv_desc lfs_fifoop_opv_desc =
+ { &lfs_fifoop_p, lfs_fifoop_entries };
+#endif /* FIFO */
-/*
- * Create a regular file
- */
-ufs_create(ndp, vap)
- struct nameidata *ndp;
- struct vattr *vap;
-{
- struct inode *ip;
- int error;
-
- if (error = maknode(MAKEIMODE(vap->va_type, vap->va_mode), ndp, &ip))
- return (error);
- ndp->ni_vp = ITOV(ip);
- return (0);
-}
-
-/*
- * Mknod vnode call
- */
-/* ARGSUSED */
-ufs_mknod(ndp, vap, cred)
- struct nameidata *ndp;
- struct ucred *cred;
- struct vattr *vap;
-{
- register struct vnode *vp;
- struct inode *ip;
- int error;
-
- if (error = maknode(MAKEIMODE(vap->va_type, vap->va_mode), ndp, &ip))
- return (error);
- vp = ITOV(ip);
- if (vap->va_rdev) {
- /*
- * Want to be able to use this to make badblock
- * inodes, so don't truncate the dev number.
- */
- ip->i_rdev = vap->va_rdev;
- ip->i_flag |= IACC|IUPD|ICHG;
- }
- /*
- * Remove inode so that it will be reloaded by iget and
- * checked to see if it is an alias of an existing entry
- * in the inode cache.
- */
- iput(ip);
- vp->v_type = VNON;
- vgone(vp);
- return (0);
-}
+#define LFS_READWRITE
+#include <ufs/ufs/ufs_readwrite.c>
+#undef LFS_READWRITE
/*
- * Open called.
- *
- * Nothing to do.
- */
-/* ARGSUSED */
-ufs_open(vp, mode, cred)
- struct vnode *vp;
- int mode;
- struct ucred *cred;
-{
-
- return (0);
-}
-
-/*
- * Close called
- *
- * Update the times on the inode.
+ * Synch an open file.
*/
/* ARGSUSED */
-ufs_close(vp, fflag, cred)
- struct vnode *vp;
- int fflag;
- struct ucred *cred;
-{
- register struct inode *ip = VTOI(vp);
-
- if (vp->v_usecount > 1 && !(ip->i_flag & ILOCKED))
- ITIMES(ip, &time, &time);
- return (0);
-}
-
-ufs_access(vp, mode, cred)
- struct vnode *vp;
- int mode;
- struct ucred *cred;
+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;
- return (iaccess(VTOI(vp), mode, cred));
+ tv = time;
+ return (VOP_UPDATE(ap->a_vp, &tv, &tv,
+ ap->a_waitfor == MNT_WAIT ? LFS_SYNC : 0));
+}
+
+/*
+ * 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; \
}
-/* ARGSUSED */
-ufs_getattr(vp, vap, cred)
- struct vnode *vp;
- register struct vattr *vap;
- struct ucred *cred;
-{
+#define SET_ENDOP(fs) { \
+ --(fs)->lfs_dirops; \
+ if (!(fs)->lfs_dirops) \
+ wakeup(&(fs)->lfs_writer); \
+}
+
+#define MARK_VNODE(dvp) (dvp)->v_flag |= VDIROP
+
+int
+lfs_symlink(ap)
+ struct vop_symlink_args /* {
+ struct vnode *a_dvp;
+ struct vnode **a_vpp;
+ struct componentname *a_cnp;
+ struct vattr *a_vap;
+ char *a_target;
+ } */ *ap;
+{
+ int ret;
+
+ SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
+ MARK_VNODE(ap->a_dvp);
+ ret = ufs_symlink(ap);
+ SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
+ return (ret);
+}
+
+int
+lfs_mknod(ap)
+ struct vop_mknod_args /* {
+ struct vnode *a_dvp;
+ struct vnode **a_vpp;
+ struct componentname *a_cnp;
+ struct vattr *a_vap;
+ } */ *ap;
+{
+ int ret;
+
+ SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
+ MARK_VNODE(ap->a_dvp);
+ ret = ufs_mknod(ap);
+ SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
+ return (ret);
+}
+
+int
+lfs_create(ap)
+ struct vop_create_args /* {
+ struct vnode *a_dvp;
+ struct vnode **a_vpp;
+ struct componentname *a_cnp;
+ struct vattr *a_vap;
+ } */ *ap;
+{
+ int ret;
+
+ SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
+ MARK_VNODE(ap->a_dvp);
+ ret = ufs_create(ap);
+ SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
+ return (ret);
+}
+
+int
+lfs_mkdir(ap)
+ struct vop_mkdir_args /* {
+ struct vnode *a_dvp;
+ struct vnode **a_vpp;
+ struct componentname *a_cnp;
+ struct vattr *a_vap;
+ } */ *ap;
+{
+ int ret;
+
+ SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
+ MARK_VNODE(ap->a_dvp);
+ ret = ufs_mkdir(ap);
+ SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
+ return (ret);
+}
+
+int
+lfs_remove(ap)
+ struct vop_remove_args /* {
+ struct vnode *a_dvp;
+ struct vnode *a_vp;
+ struct componentname *a_cnp;
+ } */ *ap;
+{
+ int ret;
+
+ SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
+ MARK_VNODE(ap->a_dvp);
+ MARK_VNODE(ap->a_vp);
+ ret = ufs_remove(ap);
+ SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
+ return (ret);
+}
+
+int
+lfs_rmdir(ap)
+ struct vop_rmdir_args /* {
+ struct vnodeop_desc *a_desc;
+ struct vnode *a_dvp;
+ struct vnode *a_vp;
+ struct componentname *a_cnp;
+ } */ *ap;
+{
+ int ret;
+
+ SET_DIROP(VTOI(ap->a_dvp)->i_lfs);
+ MARK_VNODE(ap->a_dvp);
+ MARK_VNODE(ap->a_vp);
+ ret = ufs_rmdir(ap);
+ SET_ENDOP(VTOI(ap->a_dvp)->i_lfs);
+ return (ret);
+}
+
+int
+lfs_link(ap)
+ struct vop_link_args /* {
+ struct vnode *a_vp;
+ struct vnode *a_tdvp;
+ struct componentname *a_cnp;
+ } */ *ap;
+{
+ int ret;
+
+ SET_DIROP(VTOI(ap->a_vp)->i_lfs);
+ MARK_VNODE(ap->a_vp);
+ ret = ufs_link(ap);
+ SET_ENDOP(VTOI(ap->a_vp)->i_lfs);
+ return (ret);
+}
+
+int
+lfs_rename(ap)
+ struct vop_rename_args /* {
+ struct vnode *a_fdvp;
+ struct vnode *a_fvp;
+ struct componentname *a_fcnp;
+ struct vnode *a_tdvp;
+ struct vnode *a_tvp;
+ struct componentname *a_tcnp;
+ } */ *ap;
+{
+ int ret;
+
+ SET_DIROP(VTOI(ap->a_fdvp)->i_lfs);
+ MARK_VNODE(ap->a_fdvp);
+ MARK_VNODE(ap->a_tdvp);
+ ret = ufs_rename(ap);
+ SET_ENDOP(VTOI(ap->a_fdvp)->i_lfs);
+ return (ret);
+}
+/* XXX hack to avoid calling ITIMES in getattr */
+int
+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);
-
- ITIMES(ip, &time, &time);
+ register struct vattr *vap = ap->a_vap;
/*
* Copy from inode table
*/
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_qsize.val[0];
- vap->va_size1 = ip->i_din.di_qsize.val[1];
- vap->va_atime.tv_sec = ip->i_atime;
- vap->va_atime.tv_usec = 0;
- vap->va_mtime.tv_sec = ip->i_mtime;
- vap->va_mtime.tv_usec = 0;
- vap->va_ctime.tv_sec = ip->i_ctime;
- vap->va_ctime.tv_usec = 0;
+ vap->va_size = ip->i_din.di_size;
+ vap->va_atime = ip->i_atime;
+ vap->va_mtime = ip->i_mtime;
+ vap->va_ctime = ip->i_ctime;
vap->va_flags = ip->i_flags;
vap->va_gen = ip->i_gen;
/* this doesn't belong here */
else if (vp->v_type == VCHR)
vap->va_blocksize = MAXBSIZE;
else
- vap->va_blocksize = ip->i_fs->fs_bsize;
+ vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize;
vap->va_bytes = dbtob(ip->i_blocks);
- vap->va_bytes1 = -1;
vap->va_type = vp->v_type;
+ vap->va_filerev = ip->i_modrev;
return (0);
}
-
-/*
- * Set attribute vnode op. called from several syscalls
- */
-ufs_setattr(vp, vap, cred)
- register struct vnode *vp;
- register struct vattr *vap;
- register struct ucred *cred;
-{
- register struct inode *ip = VTOI(vp);
- int error = 0;
-
- /*
- * Check for unsetable attributes.
- */
- if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) ||
- (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) ||
- (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) ||
- ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) {
- return (EINVAL);
- }
- /*
- * Go through the fields and update iff not VNOVAL.
- */
- if (vap->va_uid != (u_short)VNOVAL || vap->va_gid != (u_short)VNOVAL)
- if (error = chown1(vp, vap->va_uid, vap->va_gid, cred))
- return (error);
- if (vap->va_size != VNOVAL) {
- if (vp->v_type == VDIR)
- return (EISDIR);
- if (error = itrunc(ip, vap->va_size, 0)) /* XXX IO_SYNC? */
- return (error);
- }
- if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL) {
- if (cred->cr_uid != ip->i_uid &&
- (error = suser(cred, &u.u_acflag)))
- return (error);
- if (vap->va_atime.tv_sec != VNOVAL)
- ip->i_flag |= IACC;
- if (vap->va_mtime.tv_sec != VNOVAL)
- ip->i_flag |= IUPD;
- ip->i_flag |= ICHG;
- if (error = iupdat(ip, &vap->va_atime, &vap->va_mtime, 1))
- return (error);
- }
- if (vap->va_mode != (u_short)VNOVAL)
- error = chmod1(vp, (int)vap->va_mode, cred);
- if (vap->va_flags != VNOVAL) {
- if (cred->cr_uid != ip->i_uid &&
- (error = suser(cred, &u.u_acflag)))
- return (error);
- if (cred->cr_uid == 0) {
- ip->i_flags = vap->va_flags;
- } else {
- ip->i_flags &= 0xffff0000;
- ip->i_flags |= (vap->va_flags & 0xffff);
- }
- ip->i_flag |= ICHG;
- }
- return (error);
-}
-
-/*
- * Change the mode on a file.
- * Inode must be locked before calling.
- */
-chmod1(vp, mode, cred)
- register struct vnode *vp;
- register int mode;
- struct ucred *cred;
-{
- register struct inode *ip = VTOI(vp);
- int error;
-
- if (cred->cr_uid != ip->i_uid &&
- (error = suser(cred, &u.u_acflag)))
- return (error);
- ip->i_mode &= ~07777;
- if (cred->cr_uid) {
- if (vp->v_type != VDIR)
- mode &= ~ISVTX;
- if (!groupmember(ip->i_gid, cred))
- mode &= ~ISGID;
- }
- ip->i_mode |= mode & 07777;
- ip->i_flag |= ICHG;
- if ((vp->v_flag & VTEXT) && (ip->i_mode & ISVTX) == 0)
- xrele(vp);
- return (0);
-}
-
/*
- * Perform chown operation on inode ip;
- * inode must be locked prior to call.
- */
-chown1(vp, uid, gid, cred)
- register struct vnode *vp;
- uid_t uid;
- gid_t gid;
- struct ucred *cred;
-{
- register struct inode *ip = VTOI(vp);
-#ifdef QUOTA
- register long change;
-#endif
- int error;
-
- if (uid == (u_short)VNOVAL)
- uid = ip->i_uid;
- if (gid == (u_short)VNOVAL)
- gid = ip->i_gid;
- /*
- * If we don't own the file, are trying to change the owner
- * of the file, or are not a member of the target group,
- * the caller must be superuser or the call fails.
- */
- if ((cred->cr_uid != ip->i_uid || uid != ip->i_uid ||
- !groupmember((gid_t)gid, cred)) &&
- (error = suser(cred, &u.u_acflag)))
- return (error);
-#ifdef QUOTA
- if (ip->i_uid == uid) /* this just speeds things a little */
- change = 0;
- else
- change = ip->i_blocks;
- (void) chkdq(ip, -change, 1);
- (void) chkiq(ip->i_dev, ip, ip->i_uid, 1);
- dqrele(ip->i_dquot);
-#endif
- if (ip->i_uid != uid && cred->cr_uid != 0)
- ip->i_mode &= ~ISUID;
- if (ip->i_gid != gid && cred->cr_uid != 0)
- ip->i_mode &= ~ISGID;
- ip->i_uid = uid;
- ip->i_gid = gid;
- ip->i_flag |= ICHG;
-#ifdef QUOTA
- ip->i_dquot = inoquota(ip);
- (void) chkdq(ip, change, 1);
- (void) chkiq(ip->i_dev, (struct inode *)NULL, (uid_t)uid, 1);
- return (u.u_error); /* should == 0 ALWAYS !! */
-#else
- return (0);
-#endif
-}
-
-/*
- * Vnode op for reading.
- */
-/* ARGSUSED */
-ufs_read(vp, uio, ioflag, cred)
- struct vnode *vp;
- register struct uio *uio;
- int ioflag;
- struct ucred *cred;
-{
- register struct inode *ip = VTOI(vp);
- register struct fs *fs;
- struct buf *bp;
- daddr_t lbn, bn, rablock;
- int size, diff, error = 0;
- long n, on, type;
-
- if (uio->uio_rw != UIO_READ)
- panic("ufs_read mode");
- type = ip->i_mode & IFMT;
- if (type != IFDIR && type != IFREG && type != IFLNK)
- panic("ufs_read type");
- if (uio->uio_resid == 0)
- return (0);
- if (uio->uio_offset < 0)
- return (EINVAL);
- ip->i_flag |= IACC;
- fs = ip->i_fs;
- do {
- lbn = lblkno(fs, uio->uio_offset);
- on = blkoff(fs, uio->uio_offset);
- n = MIN((unsigned)(fs->fs_bsize - on), uio->uio_resid);
- diff = ip->i_size - uio->uio_offset;
- if (diff <= 0)
- return (0);
- if (diff < n)
- n = diff;
- size = blksize(fs, ip, lbn);
- rablock = lbn + 1;
- if (vp->v_lastr + 1 == lbn &&
- lblktosize(fs, rablock) < ip->i_size)
- error = breada(ITOV(ip), lbn, size, rablock,
- blksize(fs, ip, rablock), NOCRED, &bp);
- else
- error = bread(ITOV(ip), lbn, size, NOCRED, &bp);
- vp->v_lastr = lbn;
- n = MIN(n, size - bp->b_resid);
- if (error) {
- brelse(bp);
- return (error);
- }
- error = uiomove(bp->b_un.b_addr + on, (int)n, uio);
- if (n + on == fs->fs_bsize || uio->uio_offset == ip->i_size)
- bp->b_flags |= B_AGE;
- brelse(bp);
- } while (error == 0 && uio->uio_resid > 0 && n != 0);
- return (error);
-}
-
-/*
- * Vnode op for writing.
- */
-ufs_write(vp, uio, ioflag, cred)
- register struct vnode *vp;
- struct uio *uio;
- int ioflag;
- struct ucred *cred;
-{
- register struct inode *ip = VTOI(vp);
- register struct fs *fs;
- struct buf *bp;
- daddr_t lbn, bn;
- u_long osize;
- int i, n, on, flags;
- int count, size, resid, error = 0;
-
- if (uio->uio_rw != UIO_WRITE)
- panic("ufs_write mode");
- switch (vp->v_type) {
- case VREG:
- if (ioflag & IO_APPEND)
- uio->uio_offset = ip->i_size;
- /* fall through */
- case VLNK:
- break;
-
- case VDIR:
- if ((ioflag & IO_SYNC) == 0)
- panic("ufs_write nonsync dir write");
- break;
-
- default:
- panic("ufs_write type");
- }
- if (uio->uio_offset < 0)
- return (EINVAL);
- if (uio->uio_resid == 0)
- return (0);
- /*
- * Maybe this should be above the vnode op call, but so long as
- * file servers have no limits, i don't think it matters
- */
- if (vp->v_type == VREG &&
- uio->uio_offset + uio->uio_resid >
- u.u_rlimit[RLIMIT_FSIZE].rlim_cur) {
- psignal(u.u_procp, SIGXFSZ);
- return (EFBIG);
- }
- resid = uio->uio_resid;
- osize = ip->i_size;
- fs = ip->i_fs;
- flags = 0;
- if (ioflag & IO_SYNC)
- flags = B_SYNC;
- do {
- lbn = lblkno(fs, uio->uio_offset);
- on = blkoff(fs, uio->uio_offset);
- n = MIN((unsigned)(fs->fs_bsize - on), uio->uio_resid);
- if (n < fs->fs_bsize)
- flags |= B_CLRBUF;
- else
- flags &= ~B_CLRBUF;
- if (error = balloc(ip, lbn, (int)(on + n), &bp, flags))
- break;
- bn = bp->b_blkno;
- if (uio->uio_offset + n > ip->i_size)
- ip->i_size = uio->uio_offset + n;
- size = blksize(fs, ip, lbn);
- count = howmany(size, CLBYTES);
- for (i = 0; i < count; i++)
- munhash(ip->i_devvp, bn + i * CLBYTES / DEV_BSIZE);
- n = MIN(n, size - bp->b_resid);
- error = uiomove(bp->b_un.b_addr + on, n, uio);
- if (ioflag & IO_SYNC)
- (void) bwrite(bp);
- else if (n + on == fs->fs_bsize) {
- bp->b_flags |= B_AGE;
- bawrite(bp);
- } else
- bdwrite(bp);
- ip->i_flag |= IUPD|ICHG;
- if (cred->cr_uid != 0)
- ip->i_mode &= ~(ISUID|ISGID);
- } while (error == 0 && uio->uio_resid > 0 && n != 0);
- if (error && (ioflag & IO_UNIT)) {
- (void) itrunc(ip, osize, ioflag & IO_SYNC);
- uio->uio_offset -= resid - uio->uio_resid;
- uio->uio_resid = resid;
- }
- return (error);
-}
-
-/* ARGSUSED */
-ufs_ioctl(vp, com, data, fflag, cred)
- struct vnode *vp;
- int com;
- caddr_t data;
- int fflag;
- struct ucred *cred;
-{
-
- return (ENOTTY);
-}
-
-/* ARGSUSED */
-ufs_select(vp, which, cred)
- struct vnode *vp;
- int which;
- struct ucred *cred;
-{
-
- return (1); /* XXX */
-}
-
-/*
- * Mmap a file
- *
- * NB Currently unsupported.
- */
-/* ARGSUSED */
-ufs_mmap(vp, fflags, cred)
- struct vnode *vp;
- int fflags;
- struct ucred *cred;
-{
-
- return (EINVAL);
-}
-
-/*
- * Synch an open file.
- */
-/* ARGSUSED */
-ufs_fsync(vp, fflags, cred, waitfor)
- struct vnode *vp;
- int fflags;
- struct ucred *cred;
- int waitfor;
-{
- struct inode *ip = VTOI(vp);
-
- if (fflags&FWRITE)
- ip->i_flag |= ICHG;
- vflushbuf(vp, waitfor == MNT_WAIT ? B_SYNC : 0);
- return (iupdat(ip, &time, &time, waitfor == MNT_WAIT));
-}
-
-/*
- * Seek on a file
+ * Close called
*
- * Nothing to do, so just return.
+ * XXX -- we were using ufs_close, but since it updates the
+ * times on the inode, we might need to bump the uinodes
+ * count.
*/
/* ARGSUSED */
-ufs_seek(vp, oldoff, newoff, cred)
- struct vnode *vp;
- off_t oldoff, newoff;
- struct ucred *cred;
-{
-
- return (0);
-}
-
-/*
- * ufs remove
- * Hard to avoid races here, especially
- * in unlinking directories.
- */
-ufs_remove(ndp)
- struct nameidata *ndp;
-{
- register struct inode *ip, *dp;
- int error;
-
- ip = VTOI(ndp->ni_vp);
- dp = VTOI(ndp->ni_dvp);
- error = dirremove(ndp);
- if (!error) {
- ip->i_nlink--;
- ip->i_flag |= ICHG;
- }
- if (dp == ip)
- vrele(ITOV(ip));
- else
- iput(ip);
- iput(dp);
- return (error);
-}
-
-/*
- * link vnode call
- */
-ufs_link(vp, ndp)
- register struct vnode *vp;
- register struct nameidata *ndp;
-{
- register struct inode *ip = VTOI(vp);
- int error;
-
- if (ndp->ni_dvp != vp)
- ILOCK(ip);
- if (ip->i_nlink == LINK_MAX - 1) {
- error = EMLINK;
- goto out;
- }
- ip->i_nlink++;
- ip->i_flag |= ICHG;
- error = iupdat(ip, &time, &time, 1);
- if (!error)
- error = direnter(ip, ndp);
-out:
- if (ndp->ni_dvp != vp)
- IUNLOCK(ip);
- if (error) {
- ip->i_nlink--;
- ip->i_flag |= ICHG;
- }
- return (error);
-}
-
-/*
- * Rename system call.
- * rename("foo", "bar");
- * is essentially
- * unlink("bar");
- * link("foo", "bar");
- * unlink("foo");
- * but ``atomically''. Can't do full commit without saving state in the
- * inode on disk which isn't feasible at this time. Best we can do is
- * always guarantee the target exists.
- *
- * Basic algorithm is:
- *
- * 1) Bump link count on source while we're linking it to the
- * target. This also ensure the inode won't be deleted out
- * from underneath us while we work (it may be truncated by
- * a concurrent `trunc' or `open' for creation).
- * 2) Link source to destination. If destination already exists,
- * delete it first.
- * 3) Unlink source reference to inode if still around. If a
- * directory was moved and the parent of the destination
- * is different from the source, patch the ".." entry in the
- * directory.
- */
-ufs_rename(fndp, tndp)
- register struct nameidata *fndp, *tndp;
-{
- register struct inode *ip, *xp, *dp;
- struct dirtemplate dirbuf;
- int doingdirectory = 0, oldparent = 0, newparent = 0;
- int error = 0;
-
- dp = VTOI(fndp->ni_dvp);
- ip = VTOI(fndp->ni_vp);
- ILOCK(ip);
- if ((ip->i_mode&IFMT) == IFDIR) {
- register struct direct *d = &fndp->ni_dent;
-
- /*
- * Avoid ".", "..", and aliases of "." for obvious reasons.
- */
- if ((d->d_namlen == 1 && d->d_name[0] == '.') || dp == ip ||
- fndp->ni_isdotdot || (ip->i_flag & IRENAME)) {
- IUNLOCK(ip);
- ufs_abortop(fndp);
- ufs_abortop(tndp);
- return (EINVAL);
- }
- ip->i_flag |= IRENAME;
- oldparent = dp->i_number;
- doingdirectory++;
- }
- vrele(fndp->ni_dvp);
-
- /*
- * 1) Bump link count while we're moving stuff
- * around. If we crash somewhere before
- * completing our work, the link count
- * may be wrong, but correctable.
- */
- ip->i_nlink++;
- ip->i_flag |= ICHG;
- error = iupdat(ip, &time, &time, 1);
- IUNLOCK(ip);
-
- /*
- * When the target exists, both the directory
- * and target vnodes are returned locked.
- */
- dp = VTOI(tndp->ni_dvp);
- xp = NULL;
- if (tndp->ni_vp)
- xp = VTOI(tndp->ni_vp);
- /*
- * If ".." must be changed (ie the directory gets a new
- * parent) then the source directory must not be in the
- * directory heirarchy above the target, as this would
- * orphan everything below the source directory. Also
- * the user must have write permission in the source so
- * as to be able to change "..". We must repeat the call
- * to namei, as the parent directory is unlocked by the
- * call to checkpath().
- */
- if (oldparent != dp->i_number)
- newparent = dp->i_number;
- if (doingdirectory && newparent) {
- if (error = iaccess(ip, IWRITE, tndp->ni_cred))
- goto bad;
- tndp->ni_nameiop = RENAME | LOCKPARENT | LOCKLEAF | NOCACHE;
- do {
- dp = VTOI(tndp->ni_dvp);
- if (xp != NULL)
- iput(xp);
- if (error = checkpath(ip, dp, tndp->ni_cred))
- goto out;
- if (error = namei(tndp))
- goto out;
- xp = NULL;
- if (tndp->ni_vp)
- xp = VTOI(tndp->ni_vp);
- } while (dp != VTOI(tndp->ni_dvp));
- }
- /*
- * 2) If target doesn't exist, link the target
- * to the source and unlink the source.
- * Otherwise, rewrite the target directory
- * entry to reference the source inode and
- * expunge the original entry's existence.
- */
- if (xp == NULL) {
- if (dp->i_dev != ip->i_dev)
- panic("rename: EXDEV");
- /*
- * Account for ".." in new directory.
- * When source and destination have the same
- * parent we don't fool with the link count.
- */
- if (doingdirectory && newparent) {
- dp->i_nlink++;
- dp->i_flag |= ICHG;
- error = iupdat(dp, &time, &time, 1);
- }
- if (error = direnter(ip, tndp))
- goto out;
- } else {
- if (xp->i_dev != dp->i_dev || xp->i_dev != ip->i_dev)
- panic("rename: EXDEV");
- /*
- * Short circuit rename(foo, foo).
- */
- if (xp->i_number == ip->i_number)
- panic("rename: same file");
- /*
- * If the parent directory is "sticky", then the user must
- * own the parent directory, or the destination of the rename,
- * otherwise the destination may not be changed (except by
- * root). This implements append-only directories.
- */
- if ((dp->i_mode & ISVTX) && tndp->ni_cred->cr_uid != 0 &&
- tndp->ni_cred->cr_uid != dp->i_uid &&
- xp->i_uid != tndp->ni_cred->cr_uid) {
- error = EPERM;
- goto bad;
- }
- /*
- * Target must be empty if a directory
- * and have no links to it.
- * Also, insure source and target are
- * compatible (both directories, or both
- * not directories).
- */
- if ((xp->i_mode&IFMT) == IFDIR) {
- if (!dirempty(xp, dp->i_number, tndp->ni_cred) ||
- xp->i_nlink > 2) {
- error = ENOTEMPTY;
- goto bad;
- }
- if (!doingdirectory) {
- error = ENOTDIR;
- goto bad;
- }
- cache_purge(ITOV(dp));
- } else if (doingdirectory) {
- error = EISDIR;
- goto bad;
- }
- if (error = dirrewrite(dp, ip, tndp))
- goto bad;
- vput(ITOV(dp));
- /*
- * Adjust the link count of the target to
- * reflect the dirrewrite above. If this is
- * a directory it is empty and there are
- * no links to it, so we can squash the inode and
- * any space associated with it. We disallowed
- * renaming over top of a directory with links to
- * it above, as the remaining link would point to
- * a directory without "." or ".." entries.
- */
- xp->i_nlink--;
- if (doingdirectory) {
- if (--xp->i_nlink != 0)
- panic("rename: linked directory");
- error = itrunc(xp, (u_long)0, IO_SYNC);
- }
- xp->i_flag |= ICHG;
- iput(xp);
- xp = NULL;
- }
-
- /*
- * 3) Unlink the source.
- */
- fndp->ni_nameiop = DELETE | LOCKPARENT | LOCKLEAF;
- (void)namei(fndp);
- if (fndp->ni_vp != NULL) {
- xp = VTOI(fndp->ni_vp);
- dp = VTOI(fndp->ni_dvp);
- } else {
- if (fndp->ni_dvp != NULL)
- vput(fndp->ni_dvp);
- xp = NULL;
- dp = NULL;
- }
- /*
- * Ensure that the directory entry still exists and has not
- * changed while the new name has been entered. If the source is
- * a file then the entry may have been unlinked or renamed. In
- * either case there is no further work to be done. If the source
- * is a directory then it cannot have been rmdir'ed; its link
- * count of three would cause a rmdir to fail with ENOTEMPTY.
- * The IRENAME flag ensures that it cannot be moved by another
- * rename.
- */
- if (xp != ip) {
- if (doingdirectory)
- panic("rename: lost dir entry");
- } else {
- /*
- * If the source is a directory with a
- * new parent, the link count of the old
- * parent directory must be decremented
- * and ".." set to point to the new parent.
- */
- if (doingdirectory && newparent) {
- dp->i_nlink--;
- dp->i_flag |= ICHG;
- error = vn_rdwr(UIO_READ, ITOV(xp), (caddr_t)&dirbuf,
- sizeof (struct dirtemplate), (off_t)0,
- UIO_SYSSPACE, IO_NODELOCKED,
- tndp->ni_cred, (int *)0);
- if (error == 0) {
- if (dirbuf.dotdot_namlen != 2 ||
- dirbuf.dotdot_name[0] != '.' ||
- dirbuf.dotdot_name[1] != '.') {
- dirbad(xp, 12, "rename: mangled dir");
- } else {
- dirbuf.dotdot_ino = newparent;
- (void) vn_rdwr(UIO_WRITE, ITOV(xp),
- (caddr_t)&dirbuf,
- sizeof (struct dirtemplate),
- (off_t)0, UIO_SYSSPACE,
- IO_NODELOCKED|IO_SYNC,
- tndp->ni_cred, (int *)0);
- cache_purge(ITOV(dp));
- }
- }
- }
- error = dirremove(fndp);
- if (!error) {
- xp->i_nlink--;
- xp->i_flag |= ICHG;
- }
- xp->i_flag &= ~IRENAME;
- }
- if (dp)
- vput(ITOV(dp));
- if (xp)
- vput(ITOV(xp));
- vrele(ITOV(ip));
- return (error);
-
-bad:
- if (xp)
- vput(ITOV(xp));
- vput(ITOV(dp));
-out:
- ip->i_nlink--;
- ip->i_flag |= ICHG;
- vrele(ITOV(ip));
- return (error);
-}
-
-/*
- * A virgin directory (no blushing please).
- */
-struct dirtemplate mastertemplate = {
- 0, 12, 1, ".",
- 0, DIRBLKSIZ - 12, 2, ".."
-};
-
-/*
- * Mkdir system call
- */
-ufs_mkdir(ndp, vap)
- struct nameidata *ndp;
- struct vattr *vap;
-{
- register struct inode *ip, *dp;
- struct inode *tip;
- struct vnode *dvp;
- struct dirtemplate dirtemplate;
- int error;
- int dmode;
-
- dvp = ndp->ni_dvp;
- dp = VTOI(dvp);
- dmode = vap->va_mode&0777;
- dmode |= IFDIR;
- /*
- * Must simulate part of maknode here
- * in order to acquire the inode, but
- * not have it entered in the parent
- * directory. The entry is made later
- * after writing "." and ".." entries out.
- */
- error = ialloc(dp, dirpref(dp->i_fs), dmode, &tip);
- if (error) {
- iput(dp);
- return (error);
- }
- ip = tip;
-#ifdef QUOTA
- if (ip->i_dquot != NODQUOT)
- panic("mkdir: dquot");
-#endif
- ip->i_flag |= IACC|IUPD|ICHG;
- ip->i_mode = dmode;
- ITOV(ip)->v_type = VDIR; /* Rest init'd in iget() */
- ip->i_nlink = 2;
- ip->i_uid = ndp->ni_cred->cr_uid;
- ip->i_gid = dp->i_gid;
-#ifdef QUOTA
- ip->i_dquot = inoquota(ip);
-#endif
- error = iupdat(ip, &time, &time, 1);
-
- /*
- * Bump link count in parent directory
- * to reflect work done below. Should
- * be done before reference is created
- * so reparation is possible if we crash.
- */
- dp->i_nlink++;
- dp->i_flag |= ICHG;
- error = iupdat(dp, &time, &time, 1);
-
- /*
- * Initialize directory with "."
- * and ".." from static template.
- */
- dirtemplate = mastertemplate;
- dirtemplate.dot_ino = ip->i_number;
- dirtemplate.dotdot_ino = dp->i_number;
- error = vn_rdwr(UIO_WRITE, ITOV(ip), (caddr_t)&dirtemplate,
- sizeof (dirtemplate), (off_t)0, UIO_SYSSPACE,
- IO_NODELOCKED|IO_SYNC, ndp->ni_cred, (int *)0);
- if (error) {
- dp->i_nlink--;
- dp->i_flag |= ICHG;
- goto bad;
- }
- if (DIRBLKSIZ > dp->i_fs->fs_fsize)
- panic("mkdir: blksize"); /* XXX - should grow w/balloc() */
- else
- ip->i_size = DIRBLKSIZ;
- /*
- * Directory all set up, now
- * install the entry for it in
- * the parent directory.
- */
- error = direnter(ip, ndp);
- dp = NULL;
- if (error) {
- ndp->ni_nameiop = LOOKUP | NOCACHE;
- error = namei(ndp);
- if (!error) {
- dp = VTOI(ndp->ni_vp);
- dp->i_nlink--;
- dp->i_flag |= ICHG;
- }
- }
-bad:
- /*
- * No need to do an explicit itrunc here,
- * vrele will do this for us because we set
- * the link count to 0.
- */
- if (error) {
- ip->i_nlink = 0;
- ip->i_flag |= ICHG;
- iput(ip);
- } else
- ndp->ni_vp = ITOV(ip);
- if (dp)
- iput(dp);
- return (error);
-}
-
-/*
- * Rmdir system call.
- */
-ufs_rmdir(ndp)
- register struct nameidata *ndp;
-{
- register struct inode *ip, *dp;
- int error = 0;
-
- ip = VTOI(ndp->ni_vp);
- dp = VTOI(ndp->ni_dvp);
- /*
- * No rmdir "." please.
- */
- if (dp == ip) {
- vrele(ITOV(dp));
- iput(ip);
- return (EINVAL);
- }
- /*
- * Verify the directory is empty (and valid).
- * (Rmdir ".." won't be valid since
- * ".." will contain a reference to
- * the current directory and thus be
- * non-empty.)
- */
- if (ip->i_nlink != 2 || !dirempty(ip, dp->i_number, ndp->ni_cred)) {
- error = ENOTEMPTY;
- goto out;
- }
- /*
- * Delete reference to directory before purging
- * inode. If we crash in between, the directory
- * will be reattached to lost+found,
- */
- if (error = dirremove(ndp))
- goto out;
- dp->i_nlink--;
- dp->i_flag |= ICHG;
- cache_purge(ITOV(dp));
- iput(dp);
- ndp->ni_dvp = NULL;
- /*
- * Truncate inode. The only stuff left
- * in the directory is "." and "..". The
- * "." reference is inconsequential since
- * we're quashing it. The ".." reference
- * has already been adjusted above. We've
- * removed the "." reference and the reference
- * in the parent directory, but there may be
- * other hard links so decrement by 2 and
- * worry about them later.
- */
- ip->i_nlink -= 2;
- error = itrunc(ip, (u_long)0, IO_SYNC);
- cache_purge(ITOV(ip));
-out:
- if (ndp->ni_dvp)
- iput(dp);
- iput(ip);
- return (error);
-}
-
-/*
- * symlink -- make a symbolic link
- */
-ufs_symlink(ndp, vap, target)
- struct nameidata *ndp;
- struct vattr *vap;
- char *target;
-{
- struct inode *ip;
- int error;
-
- error = maknode(IFLNK | vap->va_mode, ndp, &ip);
- if (error)
- return (error);
- error = vn_rdwr(UIO_WRITE, ITOV(ip), target, strlen(target), (off_t)0,
- UIO_SYSSPACE, IO_NODELOCKED, ndp->ni_cred, (int *)0);
- iput(ip);
- return (error);
-}
-
-/*
- * Vnode op for read and write
- */
-ufs_readdir(vp, uio, cred)
- struct vnode *vp;
- register struct uio *uio;
- struct ucred *cred;
-{
- int count, lost, error;
-
- count = uio->uio_resid;
- count &= ~(DIRBLKSIZ - 1);
- lost = uio->uio_resid - count;
- if (count < DIRBLKSIZ || (uio->uio_offset & (DIRBLKSIZ -1)))
- return (EINVAL);
- uio->uio_resid = count;
- uio->uio_iov->iov_len = count;
- error = ufs_read(vp, uio, 0, cred);
- uio->uio_resid += lost;
- return (error);
-}
-
-/*
- * Return target name of a symbolic link
- */
-ufs_readlink(vp, uiop, cred)
- struct vnode *vp;
- struct uio *uiop;
- struct ucred *cred;
-{
-
- return (ufs_read(vp, uiop, 0, cred));
-}
-
-/*
- * Ufs abort op, called after namei() when a CREATE/DELETE isn't actually
- * done. Iff ni_vp/ni_dvp not null and locked, unlock.
- */
-ufs_abortop(ndp)
- register struct nameidata *ndp;
-{
- register struct inode *ip;
-
- if (ndp->ni_vp) {
- ip = VTOI(ndp->ni_vp);
- if (ip->i_flag & ILOCKED)
- IUNLOCK(ip);
- vrele(ndp->ni_vp);
- }
- if (ndp->ni_dvp) {
- ip = VTOI(ndp->ni_dvp);
- if (ip->i_flag & ILOCKED)
- IUNLOCK(ip);
- vrele(ndp->ni_dvp);
- }
- return;
-}
-
-/*
- * Lock an inode.
- */
-ufs_lock(vp)
- struct vnode *vp;
-{
+int
+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;
- ILOCK(ip);
- return (0);
-}
-
-/*
- * Unlock an inode.
- */
-ufs_unlock(vp)
- struct vnode *vp;
-{
- register struct inode *ip = VTOI(vp);
-
- if (!(ip->i_flag & ILOCKED))
- panic("ufs_unlock NOT LOCKED");
- IUNLOCK(ip);
- return (0);
-}
-
-/*
- * Check for a locked inode.
- */
-ufs_islocked(vp)
- struct vnode *vp;
-{
-
- if (VTOI(vp)->i_flag & ILOCKED)
- return (1);
- return (0);
-}
-
-/*
- * Get access to bmap
- */
-ufs_bmap(vp, bn, vpp, bnp)
- struct vnode *vp;
- daddr_t bn;
- struct vnode **vpp;
- daddr_t *bnp;
-{
- struct inode *ip = VTOI(vp);
-
- if (vpp != NULL)
- *vpp = ip->i_devvp;
- if (bnp == NULL)
- return (0);
- return (bmap(ip, bn, bnp, (daddr_t *)0, (int *)0));
-}
-
-/*
- * Just call the device strategy routine
- */
-int checkoverlap = 1;
-
-ufs_strategy(bp)
- register struct buf *bp;
-{
- register struct inode *ip = VTOI(bp->b_vp);
- register struct buf *ep;
- struct vnode *vp;
- struct buf *ebp;
- daddr_t start, last;
- int error;
-
- if (bp->b_vp->v_type == VBLK || bp->b_vp->v_type == VCHR)
- panic("ufs_strategy: spec");
- if (bp->b_blkno == bp->b_lblkno) {
- if (error = bmap(ip, bp->b_lblkno, &bp->b_blkno))
- return (error);
- if ((long)bp->b_blkno == -1)
- clrbuf(bp);
- }
- if ((long)bp->b_blkno == -1) {
- biodone(bp);
- return (0);
- }
- if (checkoverlap) {
- ebp = &buf[nbuf];
- start = bp->b_blkno;
- last = start + btodb(bp->b_bcount) - 1;
- for (ep = buf; ep < ebp; ep++) {
- if (ep == bp || (ep->b_flags & B_INVAL) ||
- ep->b_vp == (struct vnode *)0)
- continue;
- if (VOP_BMAP(ep->b_vp, (daddr_t)0, &vp, (daddr_t)0))
- continue;
- if (vp != ip->i_devvp)
- continue;
- /* look for overlap */
- if (ep->b_bcount == 0 || ep->b_blkno > last ||
- ep->b_blkno + btodb(ep->b_bcount) <= start)
- continue;
- vprint("Disk overlap", vp);
- printf("\tstart %d, end %d overlap start %d, end %d\n",
- start, last, ep->b_blkno,
- ep->b_blkno + btodb(ep->b_bcount) - 1);
- }
- }
- vp = ip->i_devvp;
- bp->b_dev = vp->v_rdev;
- (*(vp->v_op->vn_strategy))(bp);
- return (0);
-}
-
-/*
- * Print out the contents of an inode.
- */
-ufs_print(vp)
- struct vnode *vp;
-{
- register struct inode *ip = VTOI(vp);
-
- printf("tag VT_UFS, ino %d, on dev %d, %d%s\n", ip->i_number,
- major(ip->i_dev), minor(ip->i_dev),
- (ip->i_flag & ILOCKED) ? " (LOCKED)" : "");
- if (ip->i_spare0 == 0)
- return;
- printf("\towner pid %d", ip->i_spare0);
- if (ip->i_spare1)
- printf(" waiting pid %d", ip->i_spare1);
- printf("\n");
-}
-
-/*
- * Read wrapper for special devices.
- */
-ufsspec_read(vp, uio, ioflag, cred)
- struct vnode *vp;
- struct uio *uio;
- int ioflag;
- struct ucred *cred;
-{
-
- /*
- * Set access flag.
- */
- VTOI(vp)->i_flag |= IACC;
- return (spec_read(vp, uio, ioflag, cred));
-}
-
-/*
- * Write wrapper for special devices.
- */
-ufsspec_write(vp, uio, ioflag, cred)
- struct vnode *vp;
- struct uio *uio;
- int ioflag;
- struct ucred *cred;
-{
-
- /*
- * Set update and change flags.
- */
- VTOI(vp)->i_flag |= IUPD|ICHG;
- return (spec_write(vp, uio, ioflag, cred));
-}
-
-/*
- * Close wrapper for special devices.
- *
- * Update the times on the inode then do device close.
- */
-ufsspec_close(vp, fflag, cred)
- struct vnode *vp;
- int fflag;
- struct ucred *cred;
-{
- register struct inode *ip = VTOI(vp);
-
- if (vp->v_usecount > 1 && !(ip->i_flag & ILOCKED))
+ if (vp->v_usecount > 1 && !(ip->i_flag & ILOCKED)) {
+ mod = ip->i_flag & IMOD;
ITIMES(ip, &time, &time);
- return (spec_close(vp, fflag, cred));
-}
-
-/*
- * Make a new file.
- */
-maknode(mode, ndp, ipp)
- int mode;
- register struct nameidata *ndp;
- struct inode **ipp;
-{
- register struct inode *ip;
- struct inode *tip;
- register struct inode *pdir = VTOI(ndp->ni_dvp);
- ino_t ipref;
- int error;
-
- *ipp = 0;
- if ((mode & IFMT) == IFDIR)
- ipref = dirpref(pdir->i_fs);
- else
- ipref = pdir->i_number;
- error = ialloc(pdir, ipref, mode, &tip);
- if (error) {
- iput(pdir);
- return (error);
+ if (!mod && ip->i_flag & IMOD)
+ ip->i_lfs->lfs_uinodes++;
}
- ip = tip;
-#ifdef QUOTA
- if (ip->i_dquot != NODQUOT)
- panic("maknode: dquot");
-#endif
- ip->i_flag |= IACC|IUPD|ICHG;
- if ((mode & IFMT) == 0)
- mode |= IFREG;
- ip->i_mode = mode;
- ITOV(ip)->v_type = IFTOVT(mode); /* Rest init'd in iget() */
- ip->i_nlink = 1;
- ip->i_uid = ndp->ni_cred->cr_uid;
- ip->i_gid = pdir->i_gid;
- if ((ip->i_mode & ISGID) && !groupmember(ip->i_gid, ndp->ni_cred) &&
- suser(ndp->ni_cred, NULL))
- ip->i_mode &= ~ISGID;
-#ifdef QUOTA
- ip->i_dquot = inoquota(ip);
-#endif
-
- /*
- * Make sure inode goes to disk before directory entry.
- */
- if ((error = iupdat(ip, &time, &time, 1)) ||
- (error = direnter(ip, ndp))) {
- /*
- * Write error occurred trying to update the inode
- * or the directory so must deallocate the inode.
- */
- ip->i_nlink = 0;
- ip->i_flag |= ICHG;
- iput(ip);
- return (error);
- }
- *ipp = ip;
return (0);
}
+