/*
- * Copyright (c) 1982, 1986, 1989 Regents of the University of California.
+ * Copyright (c) 1991 Regents of the University of California.
* All rights reserved.
*
* %sccs.include.redist.c%
*
- * @(#)lfs_alloc.c 7.31 (Berkeley) %G%
+ * @(#)lfs_alloc.c 7.51 (Berkeley) %G%
*/
-#ifdef LOGFS
-#include "param.h"
-#include "kernel.h"
-#include "buf.h"
-#include "vnode.h"
-#include "syslog.h"
-#include "mount.h"
-#include "../ufs/quota.h"
-#include "../ufs/inode.h"
-#include "../ufs/ufsmount.h"
-#include "lfs.h"
-#include "lfs_extern.h"
-
-/* Read in the block containing a specific inode from the ifile. */
-#define LFS_IENTRY(I, F, IN, BP) \
- if (bread((F)->lfs_ivnode, (IN) / IFPB(F) + (F)->lfs_segtabsz, \
- (F)->lfs_bsize, NOCRED, &BP)) \
- panic("lfs_ientry: read"); \
- (I) = (IFILE *)BP->b_un.b_addr + IN % IFPB(F);
-
-/*
- * Allocate a new inode.
- */
-ino_t
-lfs_ialloc(fs, pip, ipp, cred)
- LFS *fs;
- INODE *pip, **ipp;
- UCRED *cred;
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/buf.h>
+#include <sys/vnode.h>
+#include <sys/syslog.h>
+#include <sys/mount.h>
+#include <sys/malloc.h>
+
+#include <vm/vm.h>
+
+#include <ufs/ufs/quota.h>
+#include <ufs/ufs/inode.h>
+#include <ufs/ufs/ufsmount.h>
+
+#include <ufs/lfs/lfs.h>
+#include <ufs/lfs/lfs_extern.h>
+
+extern u_long nextgennumber;
+
+/* Allocate a new inode. */
+/* ARGSUSED */
+int
+lfs_valloc(ap)
+ struct vop_valloc_args /* {
+ struct vnode *a_pvp;
+ int a_mode;
+ struct ucred *a_cred;
+ struct vnode **a_vpp;
+ } */ *ap;
{
- BUF *bp;
- IFILE *ifp;
- INODE *ip;
- VNODE *vp;
+ struct lfs *fs;
+ struct buf *bp;
+ struct ifile *ifp;
+ struct inode *ip;
+ struct vnode *vp;
+ daddr_t blkno;
ino_t new_ino;
+ u_long i, max;
int error;
/* Get the head of the freelist. */
+ fs = VTOI(ap->a_pvp)->i_lfs;
new_ino = fs->lfs_free;
- if (new_ino == LFS_UNUSED_INUM) {
- /*
- * XXX
- * Currently, no more inodes are allocated if the ifile fills
- * up. The ifile should be extended instead.
- */
- uprintf("\n%s: no inodes left\n", fs->lfs_fsmnt);
- log(LOG_ERR, "uid %d on %s: out of inodes\n",
- cred->cr_uid, fs->lfs_fsmnt);
- return (ENOSPC);
- }
-printf("lfs_ialloc: allocate inode %d\n", new_ino);
+#ifdef ALLOCPRINT
+ printf("lfs_ialloc: allocate inode %d\n", new_ino);
+#endif
- /* Read the appropriate block from the ifile. */
+ /*
+ * Remove the inode from the free list and write the new start
+ * of the free list into the superblock.
+ */
LFS_IENTRY(ifp, fs, new_ino, bp);
-
if (ifp->if_daddr != LFS_UNUSED_DADDR)
panic("lfs_ialloc: inuse inode on the free list");
-
- /* Remove from the free list, set the access time, write it back. */
fs->lfs_free = ifp->if_nextfree;
- ifp->if_st_atime = time.tv_sec;
- lfs_bwrite(bp);
+ brelse(bp);
+
+ /* Extend IFILE so that the next lfs_valloc will succeed. */
+ if (fs->lfs_free == LFS_UNUSED_INUM) {
+ vp = fs->lfs_ivnode;
+ ip = VTOI(vp);
+ blkno = lblkno(fs, ip->i_size);
+ bp = getblk(vp, blkno, fs->lfs_bsize);
+ if (!bp) {
+ uprintf("\n%s: no inodes left\n", fs->lfs_fsmnt);
+ log(LOG_ERR, "uid %d on %s: out of inodes\n",
+ ap->a_cred->cr_uid, fs->lfs_fsmnt);
+ return (ENOSPC);
+ }
+ i = (blkno - fs->lfs_segtabsz - fs->lfs_cleansz) *
+ fs->lfs_ifpb;
+ fs->lfs_free = i;
+ max = i + fs->lfs_ifpb;
+ for (ifp = (struct ifile *)bp->b_un.b_words; i < max; ++ifp) {
+ ifp->if_version = 1;
+ ifp->if_daddr = LFS_UNUSED_DADDR;
+ ifp->if_nextfree = ++i;
+ }
+ ifp--;
+ ifp->if_nextfree = LFS_UNUSED_INUM;
+
+ ip->i_blocks += btodb(fs->lfs_bsize);
+ fs->lfs_bfree -= btodb(fs->lfs_bsize);
+ ip->i_size += fs->lfs_bsize;
+ vnode_pager_setsize(vp, (u_long)ip->i_size);
+ vnode_pager_uncache(vp);
+ LFS_UBWRITE(bp);
+ }
/* Create a vnode to associate with the inode. */
- error = lfs_vcreate(ITOV(pip)->v_mount, new_ino, &vp);
- if (error)
+ if (error = lfs_vcreate(ap->a_pvp->v_mount, new_ino, &vp))
return (error);
- *ipp = ip = VTOI(vp);
+ *ap->a_vpp = vp;
+ vp->v_flag |= VDIROP;
+ ip = VTOI(vp);
+ VREF(ip->i_devvp);
+
+ /* Zero out the direct and indirect block addresses. */
+ bzero(ip->i_db, (NDADDR + NIADDR) * sizeof(daddr_t));
/* Set a new generation number for this inode. */
if (++nextgennumber < (u_long)time.tv_sec)
ip->i_gen = nextgennumber;
/* Insert into the inode hash table. */
- lfs_hqueue(ip);
+ ufs_ihashins(ip);
/* Set superblock modified bit and increment file count. */
fs->lfs_fmod = 1;
return (0);
}
-/* Free an inode. */
-void
-lfs_ifree(ip)
- INODE *ip;
-{
- BUF *bp;
- IFILE *ifp;
- LFS *fs;
- ino_t ino;
-
-printf("lfs_ifree: free %d\n", ip->i_number);
- /* Get the inode number and file system. */
- fs = ip->i_lfs;
- ino = ip->i_number;
-
- /*
- * Read the appropriate block from the ifile. Set the inode entry to
- * unused, increment its version number and link it into the free chain.
- */
- LFS_IENTRY(ifp, fs, ino, bp);
- ifp->if_daddr = LFS_UNUSED_DADDR;
- ++ifp->if_version;
- ifp->if_nextfree = fs->lfs_free;
- fs->lfs_free = ino;
-
- lfs_bwrite(bp);
-
- /* Set superblock modified bit and decrement file count. */
- fs->lfs_fmod = 1;
- --fs->lfs_nfiles;
-}
-
-/* Translate an inode number to a disk address. */
-daddr_t
-itod(fs, ino)
- LFS *fs;
- ino_t ino;
-{
- BUF *bp;
- IFILE *ifp;
- daddr_t iaddr;
-
- /* Read the appropriate block from the ifile. */
- LFS_IENTRY(ifp, fs, ino, bp);
-
- if (ifp->if_daddr == LFS_UNUSED_DADDR)
- panic("itod: unused disk address");
- iaddr = ifp->if_daddr;
- brelse(bp);
- return (iaddr);
-}
-
-/* Search a block for a specific dinode. */
-DINODE *
-lfs_ifind(fs, ino, page)
- LFS *fs;
- ino_t ino;
- void *page;
-{
- register DINODE *dip;
- register int cnt;
-
-printf("lfs_ifind: inode %d\n", ino);
- dip = page;
- for (cnt = INOPB(fs); cnt--; ++dip)
- if (dip->di_inum == ino)
- return (dip);
-
- panic("lfs_ifind: dinode %%u not found", ino);
- /* NOTREACHED */
-}
-
/* Create a new vnode/inode pair and initialize what fields we can. */
+int
lfs_vcreate(mp, ino, vpp)
- MOUNT *mp;
+ struct mount *mp;
ino_t ino;
- VNODE **vpp;
+ struct vnode **vpp;
{
- INODE *ip;
- UFSMOUNT *ump;
+ extern int (**lfs_vnodeop_p)();
+ struct inode *ip;
+ struct ufsmount *ump;
int error, i;
-printf("lfs_vcreate: ino %d\n", ino);
/* Create the vnode. */
- if (error = getnewvnode(VT_LFS, mp, &lfs_vnodeops, vpp))
+ if (error = getnewvnode(VT_LFS, mp, lfs_vnodeop_p, vpp)) {
+ *vpp = NULL;
return (error);
+ }
/* Get a pointer to the private mount structure. */
ump = VFSTOUFS(mp);
/* Initialize the inode. */
- ip = VTOI(*vpp);
- ip->i_diroff = 0;
+ MALLOC(ip, struct inode *, sizeof(struct inode), M_LFSNODE, M_WAITOK);
+ (*vpp)->v_data = ip;
+ ip->i_vnode = *vpp;
ip->i_devvp = ump->um_devvp;
- ip->i_dev = ump->um_dev;
ip->i_flag = 0;
- ip->i_lfs = ump->um_lfs;
- ip->i_lockf = 0;
- ip->i_mode = 0;
+ ip->i_dev = ump->um_dev;
ip->i_number = ip->i_din.di_inum = ino;
- ip->i_vnode = *vpp;
+ ip->i_lfs = ump->um_lfs;
#ifdef QUOTA
for (i = 0; i < MAXQUOTAS; i++)
ip->i_dquot[i] = NODQUOT;
#endif
- VREF(ip->i_devvp); /* XXX: Why? */
+ ip->i_lockf = 0;
+ ip->i_diroff = 0;
+ ip->i_mode = 0;
+ ip->i_size = 0;
+ ip->i_blocks = 0;
return (0);
}
-/* Return the current version number for a specific inode. */
-u_long
-lfs_getversion(fs, ino)
- LFS *fs;
- ino_t ino;
-{
- BUF *bp;
- IFILE *ifp;
- u_long version;
-
- /*
- * Read the appropriate block from the ifile. Return the
- * version number.
- */
- LFS_IENTRY(ifp, fs, ino, bp);
- version = ifp->if_version;
- brelse(bp);
- return (version);
-}
-
-/* Set values in the ifile for the inode. */
-void
-lfs_iset(ip, daddr, atime)
- INODE *ip;
- daddr_t daddr;
- time_t atime;
+/* Free an inode. */
+/* ARGUSED */
+int
+lfs_vfree(ap)
+ struct vop_vfree_args /* {
+ struct vnode *a_pvp;
+ ino_t a_ino;
+ int a_mode;
+ } */ *ap;
{
- BUF *bp;
- IFILE *ifp;
- LFS *fs;
+ SEGUSE *sup;
+ struct buf *bp;
+ struct ifile *ifp;
+ struct inode *ip;
+ struct lfs *fs;
+ daddr_t old_iaddr;
ino_t ino;
-printf("lfs_iset: setting ino %d daddr %lx time %lx\n",
-ip->i_number, daddr, atime);
-
+ /* Get the inode number and file system. */
+ ip = VTOI(ap->a_pvp);
fs = ip->i_lfs;
ino = ip->i_number;
+
+ /*
+ * Set the ifile's inode entry to unused, increment its version number
+ * and link it into the free chain.
+ */
LFS_IENTRY(ifp, fs, ino, bp);
+ old_iaddr = ifp->if_daddr;
+ ifp->if_daddr = LFS_UNUSED_DADDR;
+ ++ifp->if_version;
+ ifp->if_nextfree = fs->lfs_free;
+ fs->lfs_free = ino;
+ LFS_UBWRITE(bp);
+
+ if (old_iaddr != LFS_UNUSED_DADDR) {
+ LFS_SEGENTRY(sup, fs, datosn(fs, old_iaddr), bp);
+#ifdef DIAGNOSTIC
+ if (sup->su_nbytes < sizeof(struct dinode))
+ panic("lfs_vfree: negative byte count (segment %d)\n",
+ datosn(fs, old_iaddr));
+#endif
+ sup->su_nbytes -= sizeof(struct dinode);
+ LFS_UBWRITE(bp);
+ }
- ifp->if_daddr = daddr;
- ifp->if_st_atime = atime;
- lfs_bwrite(bp);
+ /* Set superblock modified bit and decrement file count. */
+ fs->lfs_fmod = 1;
+ --fs->lfs_nfiles;
+ return (0);
}
-#endif /* LOGFS */