static int
fuse_vfsop_root(struct mount *mp, int lkflags, struct vnode **vpp)
{
struct fuse_data *data = fuse_get_mpdata(mp);
int err = 0;
if (data->vroot != NULL) {
err = vget(data->vroot, lkflags, curthread);
if (err == 0)
*vpp = data->vroot;
} else {
err = fuse_vnode_get(mp, FUSE_ROOT_ID, NULL, vpp, NULL, VDIR);
if (err == 0) {
FUSE_LOCK();
MPASS(data->vroot == NULL || data->vroot == *vpp);
if (data->vroot == NULL) {
FS_DEBUG("new root vnode\n");
data->vroot = *vpp;
FUSE_UNLOCK();
vref(*vpp);
} else if (data->vroot != *vpp) {
FS_DEBUG("root vnode race\n");
FUSE_UNLOCK();
VOP_UNLOCK(*vpp, 0);
vrele(*vpp);
vrecycle(*vpp);
*vpp = data->vroot;
} else
FUSE_UNLOCK();
}
}
return err;
}
int
fusefs_inactive(void *v)
{
struct vop_inactive_args *ap = v;
struct vnode *vp = ap->a_vp;
struct proc *p = ap->a_p;
struct fusefs_node *ip = VTOI(vp);
struct fusefs_filehandle *fufh = NULL;
struct fusefs_mnt *fmp;
int error = 0;
int type;
DPRINTF("fusefs_inactive\n");
fmp = (struct fusefs_mnt *)ip->ufs_ino.i_ump;
for (type = 0; type < FUFH_MAXTYPE; type++) {
fufh = &(ip->fufh[type]);
if (fufh->fh_type != FUFH_INVALID)
fusefs_file_close(fmp, ip, fufh->fh_type, type,
(ip->vtype == VDIR), ap->a_p);
}
VOP_UNLOCK(vp, 0, p);
/* not sure if it is ok to do like that ...*/
if (ip->cached_attrs.va_mode == 0)
vrecycle(vp, p);
return (error);
}
int
fusefs_inactive(void *v)
{
struct vop_inactive_args *ap = v;
struct vnode *vp = ap->a_vp;
struct proc *p = curproc;
struct ucred *cred = p->p_ucred;
struct fusefs_node *ip = VTOI(vp);
struct fusefs_filehandle *fufh = NULL;
struct fusefs_mnt *fmp;
struct vattr vattr;
int error = 0;
int type;
fmp = (struct fusefs_mnt *)ip->ufs_ino.i_ump;
for (type = 0; type < FUFH_MAXTYPE; type++) {
fufh = &(ip->fufh[type]);
if (fufh->fh_type != FUFH_INVALID)
fusefs_file_close(fmp, ip, fufh->fh_type, type,
(ip->vtype == VDIR), p);
}
error = VOP_GETATTR(vp, &vattr, cred);
VOP_UNLOCK(vp, 0);
if (error)
vrecycle(vp, p);
return (0);
}
/*ARGSUSED*/
static void
znode_evict_error(dmu_buf_t *dbuf, void *user_ptr)
{
#if 1 /* XXXPJD: From OpenSolaris. */
/*
* We should never drop all dbuf refs without first clearing
* the eviction callback.
*/
panic("evicting znode %p\n", user_ptr);
#else /* XXXPJD */
znode_t *zp = user_ptr;
vnode_t *vp;
mutex_enter(&zp->z_lock);
zp->z_dbuf = NULL;
vp = ZTOV(zp);
if (vp == NULL) {
mutex_exit(&zp->z_lock);
zfs_znode_free(zp);
} else if (vp->v_count == 0) {
zp->z_vnode = NULL;
vhold(vp);
mutex_exit(&zp->z_lock);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, curthread);
vrecycle(vp, curthread);
VOP_UNLOCK(vp, 0, curthread);
vdrop(vp);
zfs_znode_free(zp);
} else {
mutex_exit(&zp->z_lock);
}
#endif
}
/*
* discard preallocated blocks
*/
int
ext2_inactive(struct vop_inactive_args *ap)
{
struct vnode *vp = ap->a_vp;
struct inode *ip = VTOI(vp);
struct thread *td = ap->a_td;
int mode, error = 0;
/*
* Ignore inodes related to stale file handles.
*/
if (ip->i_mode == 0)
goto out;
if (ip->i_nlink <= 0) {
error = ext2_truncate(vp, (off_t)0, 0, NOCRED, td);
ip->i_rdev = 0;
mode = ip->i_mode;
ip->i_mode = 0;
ip->i_flag |= IN_CHANGE | IN_UPDATE;
ext2_vfree(vp, ip->i_number, mode);
}
if (ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_MODIFIED | IN_UPDATE))
ext2_update(vp, 0);
out:
/*
* If we are done with the inode, reclaim it
* so that it can be reused immediately.
*/
if (ip->i_mode == 0)
vrecycle(vp);
return (error);
}
int
msdosfs_inactive(void *v)
{
struct vop_inactive_args *ap = v;
struct vnode *vp = ap->a_vp;
struct denode *dep = VTODE(vp);
struct proc *p = ap->a_p;
int error;
#ifdef DIAGNOSTIC
extern int prtactive;
if (prtactive && vp->v_usecount != 0)
vprint("msdosfs_inactive(): pushing active", vp);
#endif
#ifdef MSDOSFS_DEBUG
printf("msdosfs_inactive(): dep %08x, de_Name[0] %x\n", dep,
dep->de_Name[0]);
#endif
error = 0;
/*
* Get rid of denodes related to stale file handles.
*/
if (dep->de_Name[0] == SLOT_DELETED)
goto out;
/*
* If the file has been deleted and it is on a read/write
* filesystem, then truncate the file, and mark the directory slot
* as empty. (This may not be necessary for the dos filesystem.)
*/
#ifdef MSDOSFS_DEBUG
printf("msdosfs_inactive(): dep %08x, refcnt %d, mntflag %x, MNT_RDONLY %x\n",
dep, dep->de_refcnt, vp->v_mount->mnt_flag, MNT_RDONLY);
#endif
if (dep->de_refcnt <= 0 && (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
error = detrunc(dep, (uint32_t)0, 0, NOCRED, NULL);
dep->de_Name[0] = SLOT_DELETED;
}
deupdat(dep, 0);
out:
VOP_UNLOCK(vp, 0, p);
/*
* If we are done with the denode, reclaim it
* so that it can be reused immediately.
*/
#ifdef MSDOSFS_DEBUG
printf("msdosfs_inactive(): v_usecount %d, de_Name[0] %x\n",
vp->v_usecount, dep->de_Name[0]);
#endif
if (dep->de_Name[0] == SLOT_DELETED)
vrecycle(vp, p);
return (error);
}
/*
* procfs_inactive is called when the pfsnode
* is vrele'd and the reference count goes
* to zero. (vp) will be on the vnode free
* list, so to get it back vget() must be
* used.
*
* (vp) is locked on entry, but must be unlocked on exit.
*
* procfs_inactive(struct vnode *a_vp)
*/
static int
procfs_inactive(struct vop_inactive_args *ap)
{
struct pfsnode *pfs = VTOPFS(ap->a_vp);
if (pfs->pfs_pid & PFS_DEAD)
vrecycle(ap->a_vp);
return (0);
}
static int
devfs_vop_inactive(struct vop_inactive_args *ap)
{
struct devfs_node *node = DEVFS_NODE(ap->a_vp);
if (node == NULL || (node->flags & DEVFS_NODE_LINKED) == 0)
vrecycle(ap->a_vp);
return 0;
}
static int
tmpfs_inactive(struct vop_inactive_args *v)
{
struct vnode *vp = v->a_vp;
struct tmpfs_node *node;
struct mount *mp;
mp = vp->v_mount;
lwkt_gettoken(&mp->mnt_token);
node = VP_TO_TMPFS_NODE(vp);
/*
* Degenerate case
*/
if (node == NULL) {
vrecycle(vp);
lwkt_reltoken(&mp->mnt_token);
return(0);
}
/*
* Get rid of unreferenced deleted vnodes sooner rather than
* later so the data memory can be recovered immediately.
*
* We must truncate the vnode to prevent the normal reclamation
* path from flushing the data for the removed file to disk.
*/
TMPFS_NODE_LOCK(node);
if ((node->tn_vpstate & TMPFS_VNODE_ALLOCATING) == 0 &&
node->tn_links == 0)
{
node->tn_vpstate = TMPFS_VNODE_DOOMED;
TMPFS_NODE_UNLOCK(node);
if (node->tn_type == VREG)
tmpfs_truncate(vp, 0);
vrecycle(vp);
} else {
TMPFS_NODE_UNLOCK(node);
}
lwkt_reltoken(&mp->mnt_token);
return 0;
}
static int
tmpfs_inactive(struct vop_inactive_args *v)
{
struct vnode *vp;
struct tmpfs_node *node;
vp = v->a_vp;
node = VP_TO_TMPFS_NODE(vp);
if (node->tn_links == 0)
vrecycle(vp);
else
tmpfs_check_mtime(vp);
return (0);
}
/*
* There is no way to tell that someone issued remove/rmdir operation
* on the underlying filesystem. For now we just have to release lowervp
* as soon as possible.
*
* Note, we can't release any resources nor remove vnode from hash before
* appropriate VXLOCK stuff is done because other process can find this
* vnode in hash during inactivation and may be sitting in vget() and waiting
* for null_inactive to unlock vnode. Thus we will do all those in VOP_RECLAIM.
*/
static int
null_inactive(struct vop_inactive_args *ap)
{
struct vnode *vp = ap->a_vp;
struct thread *td = ap->a_td;
vp->v_object = NULL;
/*
* If this is the last reference, then free up the vnode
* so as not to tie up the lower vnodes.
*/
vrecycle(vp, td);
return (0);
}
static int
tmpfs_inactive(struct vop_inactive_args *v)
{
struct vnode *vp = v->a_vp;
struct tmpfs_node *node;
MPASS(VOP_ISLOCKED(vp));
node = VP_TO_TMPFS_NODE(vp);
if (node->tn_links == 0)
vrecycle(vp);
return 0;
}
int
msdosfs_inactive(struct vop_inactive_args *ap)
{
struct vnode *vp = ap->a_vp;
struct denode *dep = VTODE(vp);
int error = 0;
#ifdef MSDOSFS_DEBUG
printf("msdosfs_inactive(): dep %p, de_Name[0] %x\n", dep, dep->de_Name[0]);
#endif
/*
* Ignore denodes related to stale file handles.
*/
if (dep->de_Name[0] == SLOT_DELETED || dep->de_Name[0] == SLOT_EMPTY)
goto out;
/*
* If the file has been deleted and it is on a read/write
* filesystem, then truncate the file, and mark the directory slot
* as empty. (This may not be necessary for the dos filesystem.)
*/
#ifdef MSDOSFS_DEBUG
printf("msdosfs_inactive(): dep %p, refcnt %ld, mntflag %llx, MNT_RDONLY %llx\n",
dep, dep->de_refcnt, (unsigned long long)vp->v_mount->mnt_flag,
(unsigned long long)MNT_RDONLY);
#endif
if (dep->de_refcnt <= 0 && (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
error = detrunc(dep, (u_long) 0, 0, NOCRED);
dep->de_flag |= DE_UPDATE;
dep->de_Name[0] = SLOT_DELETED;
}
deupdat(dep, 0);
out:
/*
* If we are done with the denode, reclaim it
* so that it can be reused immediately.
*/
#ifdef MSDOSFS_DEBUG
printf("msdosfs_inactive(): v_usecount %d, de_Name[0] %x\n",
vrefcnt(vp), dep->de_Name[0]);
#endif
if (dep->de_Name[0] == SLOT_DELETED || dep->de_Name[0] == SLOT_EMPTY)
vrecycle(vp);
return (error);
}
/*
* Last reference to an inode. If necessary, write or delete it.
*/
int
ext2fs_inactive(void *v)
{
struct vop_inactive_args *ap = v;
struct vnode *vp = ap->a_vp;
struct inode *ip = VTOI(vp);
struct proc *p = ap->a_p;
struct timespec ts;
int error = 0;
#ifdef DIAGNOSTIC
extern int prtactive;
if (prtactive && vp->v_usecount != 0)
vprint("ext2fs_inactive: pushing active", vp);
#endif
/* Get rid of inodes related to stale file handles. */
if (ip->i_e2din == NULL || ip->i_e2fs_mode == 0 || ip->i_e2fs_dtime)
goto out;
error = 0;
if (ip->i_e2fs_nlink == 0 && (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
if (ext2fs_size(ip) != 0) {
error = ext2fs_truncate(ip, (off_t)0, 0, NOCRED);
}
getnanotime(&ts);
ip->i_e2fs_dtime = ts.tv_sec;
ip->i_flag |= IN_CHANGE | IN_UPDATE;
ext2fs_inode_free(ip, ip->i_number, ip->i_e2fs_mode);
}
if (ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_MODIFIED | IN_UPDATE)) {
ext2fs_update(ip, 0);
}
out:
VOP_UNLOCK(vp, p);
/*
* If we are done with the inode, reclaim it
* so that it can be reused immediately.
*/
if (ip->i_e2din == NULL || ip->i_e2fs_dtime != 0)
vrecycle(vp, p);
return (error);
}
/*
* Last reference to an inode. If necessary, write or delete it.
*
* ufs_inactive(struct vnode *a_vp)
*/
int
ufs_inactive(struct vop_inactive_args *ap)
{
struct vnode *vp = ap->a_vp;
struct inode *ip = VTOI(vp);
int mode, error = 0;
if (prtactive && VREFCNT(vp) > 1)
vprint("ufs_inactive: pushing active", vp);
/*
* Ignore inodes related to stale file handles.
*/
if (ip == NULL || ip->i_mode == 0)
goto out;
if (ip->i_nlink <= 0 && (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
#ifdef QUOTA
if (!ufs_getinoquota(ip))
(void)ufs_chkiq(ip, -1, NOCRED, FORCE);
#endif
/* Must have a VM object to truncate */
error = ffs_truncate(vp, (off_t)0, 0, NOCRED);
ip->i_rdev = 0;
mode = ip->i_mode;
ip->i_mode = 0;
ip->i_flag |= IN_CHANGE | IN_UPDATE;
ffs_vfree(vp, ip->i_number, mode);
}
if (ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_MODIFIED | IN_UPDATE))
ffs_update(vp, 0);
out:
/*
* If we are done with the inode, reclaim it
* so that it can be reused immediately.
*/
if (ip == NULL || ip->i_mode == 0)
vrecycle(vp);
return (error);
}
/*
* Last reference to an inode. If necessary, write or delete it.
*
* ext2_inactive(struct vnode *a_vp)
*/
int
ext2_inactive(struct vop_inactive_args *ap)
{
struct vnode *vp = ap->a_vp;
struct inode *ip = VTOI(vp);
int mode, error = 0;
ext2_discard_prealloc(ip);
if (prtactive && vp->v_sysref.refcnt > 1)
vprint("ext2_inactive: pushing active", vp);
/*
* Ignore inodes related to stale file handles.
*/
if (ip == NULL || ip->i_mode == 0)
goto out;
if (ip->i_nlink <= 0 && (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
#ifdef QUOTA
if (!ext2_getinoquota(ip))
(void)ext2_chkiq(ip, -1, NOCRED, FORCE);
#endif
error = EXT2_TRUNCATE(vp, (off_t)0, 0, NOCRED);
ip->i_rdev = 0;
mode = ip->i_mode;
ip->i_mode = 0;
ip->i_flag |= IN_CHANGE | IN_UPDATE;
EXT2_VFREE(vp, ip->i_number, mode);
}
if (ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_MODIFIED | IN_UPDATE))
EXT2_UPDATE(vp, 0);
out:
/*
* If we are done with the inode, reclaim it
* so that it can be reused immediately.
*/
if (ip == NULL || ip->i_mode == 0)
vrecycle(vp);
return (error);
}
/* XXX: callinactive can't setback */
static int
puffs_vnop_inactive(struct vop_inactive_args *ap)
{
PUFFS_MSG_VARS(vn, inactive);
struct vnode *vp = ap->a_vp;
struct puffs_mount *pmp = MPTOPUFFSMP(vp->v_mount);
struct puffs_node *pnode = VPTOPP(vp);
flushvncache(vp, MNT_NOWAIT);
if (doinact(pmp, pnode->pn_stat & PNODE_DOINACT)) {
/*
* do not wait for reply from userspace, otherwise it may
* deadlock.
*/
PUFFS_MSG_ALLOC(vn, inactive);
puffs_msg_setfaf(park_inactive);
puffs_msg_setinfo(park_inactive, PUFFSOP_VN,
PUFFS_VN_INACTIVE, VPTOPNC(vp));
puffs_msg_enqueue(pmp, park_inactive);
PUFFS_MSG_RELEASE(inactive);
}
pnode->pn_stat &= ~PNODE_DOINACT;
/*
* file server thinks it's gone? then don't be afraid care,
* node's life was already all it would ever be
*/
if (pnode->pn_stat & PNODE_NOREFS) {
pnode->pn_stat |= PNODE_DYING;
vrecycle(vp);
}
return 0;
}
/*
* Last reference to an node. If necessary, write or delete it.
*
* hpfs_inactive(struct vnode *a_vp)
*/
int
hpfs_inactive(struct vop_inactive_args *ap)
{
struct vnode *vp = ap->a_vp;
struct hpfsnode *hp = VTOHP(vp);
int error;
dprintf(("hpfs_inactive(0x%x): \n", hp->h_no));
if (hp->h_flag & H_CHANGE) {
dprintf(("hpfs_inactive: node changed, update\n"));
error = hpfs_update (hp);
if (error)
return (error);
}
if (hp->h_flag & H_PARCHANGE) {
dprintf(("hpfs_inactive: parent node changed, update\n"));
error = hpfs_updateparent (hp);
if (error)
return (error);
}
if (prtactive && vp->v_sysref.refcnt > 1)
vprint("hpfs_inactive: pushing active", vp);
if (hp->h_flag & H_INVAL) {
#if defined(__DragonFly__)
vrecycle(vp);
#else /* defined(__NetBSD__) */
vgone(vp);
#endif
return (0);
}
return (0);
}
/*
struct vnop_inactive_args {
struct vnode *a_vp;
struct thread *a_td;
};
*/
static int
fuse_vnop_inactive(struct vop_inactive_args *ap)
{
struct vnode *vp = ap->a_vp;
struct thread *td = ap->a_td;
struct fuse_vnode_data *fvdat = VTOFUD(vp);
struct fuse_filehandle *fufh = NULL;
int type, need_flush = 1;
FS_DEBUG("inode=%ju\n", (uintmax_t)VTOI(vp));
for (type = 0; type < FUFH_MAXTYPE; type++) {
fufh = &(fvdat->fufh[type]);
if (FUFH_IS_VALID(fufh)) {
if (need_flush && vp->v_type == VREG) {
if ((VTOFUD(vp)->flag & FN_SIZECHANGE) != 0) {
fuse_vnode_savesize(vp, NULL);
}
if (fuse_data_cache_invalidate ||
(fvdat->flag & FN_REVOKED) != 0)
fuse_io_invalbuf(vp, td);
else
fuse_io_flushbuf(vp, MNT_WAIT, td);
need_flush = 0;
}
fuse_filehandle_close(vp, type, td, NULL);
}
}
if ((fvdat->flag & FN_REVOKED) != 0 && fuse_reclaim_revoked) {
vrecycle(vp);
}
return 0;
}
int
lfs_bmapv(struct proc *p, fsid_t *fsidp, BLOCK_INFO *blkiov, int blkcnt)
{
BLOCK_INFO *blkp;
IFILE *ifp;
struct buf *bp;
struct inode *ip = NULL;
struct lfs *fs;
struct mount *mntp;
struct ulfsmount *ump;
struct vnode *vp;
ino_t lastino;
daddr_t v_daddr;
int cnt, error;
int numrefed = 0;
lfs_cleaner_pid = p->p_pid;
if ((mntp = vfs_getvfs(fsidp)) == NULL)
return (ENOENT);
ump = VFSTOULFS(mntp);
if ((error = vfs_busy(mntp, NULL)) != 0)
return (error);
cnt = blkcnt;
fs = VFSTOULFS(mntp)->um_lfs;
error = 0;
/* these were inside the initialization for the for loop */
v_daddr = LFS_UNUSED_DADDR;
lastino = LFS_UNUSED_INUM;
for (blkp = blkiov; cnt--; ++blkp)
{
/*
* Get the IFILE entry (only once) and see if the file still
* exists.
*/
if (lastino != blkp->bi_inode) {
/*
* Finish the old file, if there was one. The presence
* of a usable vnode in vp is signaled by a valid
* v_daddr.
*/
if (v_daddr != LFS_UNUSED_DADDR) {
lfs_vunref(vp);
if (VTOI(vp)->i_lfs_iflags & LFSI_BMAP) {
mutex_enter(vp->v_interlock);
if (vget(vp, LK_NOWAIT) == 0) {
if (! vrecycle(vp))
vrele(vp);
}
}
numrefed--;
}
/*
* Start a new file
*/
lastino = blkp->bi_inode;
if (blkp->bi_inode == LFS_IFILE_INUM)
v_daddr = fs->lfs_idaddr;
else {
LFS_IENTRY(ifp, fs, blkp->bi_inode, bp);
v_daddr = ifp->if_daddr;
brelse(bp, 0);
}
if (v_daddr == LFS_UNUSED_DADDR) {
blkp->bi_daddr = LFS_UNUSED_DADDR;
continue;
}
/*
* A regular call to VFS_VGET could deadlock
* here. Instead, we try an unlocked access.
*/
mutex_enter(&ulfs_ihash_lock);
vp = ulfs_ihashlookup(ump->um_dev, blkp->bi_inode);
if (vp != NULL && !(vp->v_iflag & VI_XLOCK)) {
ip = VTOI(vp);
mutex_enter(vp->v_interlock);
mutex_exit(&ulfs_ihash_lock);
if (lfs_vref(vp)) {
v_daddr = LFS_UNUSED_DADDR;
continue;
}
numrefed++;
} else {
mutex_exit(&ulfs_ihash_lock);
/*
* Don't VFS_VGET if we're being unmounted,
* since we hold vfs_busy().
*/
if (mntp->mnt_iflag & IMNT_UNMOUNT) {
v_daddr = LFS_UNUSED_DADDR;
continue;
}
error = VFS_VGET(mntp, blkp->bi_inode, &vp);
if (error) {
DLOG((DLOG_CLEAN, "lfs_bmapv: vget ino"
"%d failed with %d",
blkp->bi_inode,error));
v_daddr = LFS_UNUSED_DADDR;
continue;
} else {
KASSERT(VOP_ISLOCKED(vp));
VTOI(vp)->i_lfs_iflags |= LFSI_BMAP;
VOP_UNLOCK(vp);
numrefed++;
}
}
ip = VTOI(vp);
} else if (v_daddr == LFS_UNUSED_DADDR) {
/*
* This can only happen if the vnode is dead.
* Keep going. Note that we DO NOT set the
* bi_addr to anything -- if we failed to get
* the vnode, for example, we want to assume
* conservatively that all of its blocks *are*
* located in the segment in question.
* lfs_markv will throw them out if we are
* wrong.
*/
/* blkp->bi_daddr = LFS_UNUSED_DADDR; */
continue;
}
/* Past this point we are guaranteed that vp, ip are valid. */
if (blkp->bi_lbn == LFS_UNUSED_LBN) {
/*
* We just want the inode address, which is
* conveniently in v_daddr.
*/
blkp->bi_daddr = v_daddr;
} else {
daddr_t bi_daddr;
/* XXX ondisk32 */
error = VOP_BMAP(vp, blkp->bi_lbn, NULL,
&bi_daddr, NULL);
if (error)
{
blkp->bi_daddr = LFS_UNUSED_DADDR;
continue;
}
blkp->bi_daddr = LFS_DBTOFSB(fs, bi_daddr);
/* Fill in the block size, too */
if (blkp->bi_lbn >= 0)
blkp->bi_size = lfs_blksize(fs, ip, blkp->bi_lbn);
else
blkp->bi_size = fs->lfs_bsize;
}
}
/*
* Finish the old file, if there was one. The presence
* of a usable vnode in vp is signaled by a valid v_daddr.
*/
if (v_daddr != LFS_UNUSED_DADDR) {
lfs_vunref(vp);
/* Recycle as above. */
if (ip->i_lfs_iflags & LFSI_BMAP) {
mutex_enter(vp->v_interlock);
if (vget(vp, LK_NOWAIT) == 0) {
if (! vrecycle(vp))
vrele(vp);
}
}
numrefed--;
}
#ifdef DIAGNOSTIC
if (numrefed != 0)
panic("lfs_bmapv: numrefed=%d", numrefed);
#endif
vfs_unbusy(mntp, false, NULL);
return 0;
}
/*
* Reload all incore data for a filesystem (used after running fsck on
* the root filesystem and finding things to fix). The filesystem must
* be mounted read-only.
*
* Things to do to update the mount:
* 1) invalidate all cached meta-data.
* 2) re-read superblock from disk.
* 3) re-read summary information from disk.
* 4) invalidate all inactive vnodes.
* 5) invalidate all cached file data.
* 6) re-read inode data for all active vnodes.
*/
int
ext2fs_reload(struct mount *mp, kauth_cred_t cred, struct lwp *l)
{
struct vnode *vp, *mvp, *devvp;
struct inode *ip;
struct buf *bp;
struct m_ext2fs *fs;
struct ext2fs *newfs;
int i, error;
void *cp;
struct ufsmount *ump;
if ((mp->mnt_flag & MNT_RDONLY) == 0)
return (EINVAL);
ump = VFSTOUFS(mp);
/*
* Step 1: invalidate all cached meta-data.
*/
devvp = ump->um_devvp;
vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
error = vinvalbuf(devvp, 0, cred, l, 0, 0);
VOP_UNLOCK(devvp);
if (error)
panic("ext2fs_reload: dirty1");
/*
* Step 2: re-read superblock from disk.
*/
error = bread(devvp, SBLOCK, SBSIZE, NOCRED, 0, &bp);
if (error) {
return (error);
}
newfs = (struct ext2fs *)bp->b_data;
error = ext2fs_checksb(newfs, (mp->mnt_flag & MNT_RDONLY) != 0);
if (error) {
brelse(bp, 0);
return (error);
}
fs = ump->um_e2fs;
/*
* copy in new superblock, and compute in-memory values
*/
e2fs_sbload(newfs, &fs->e2fs);
fs->e2fs_ncg =
howmany(fs->e2fs.e2fs_bcount - fs->e2fs.e2fs_first_dblock,
fs->e2fs.e2fs_bpg);
fs->e2fs_fsbtodb = fs->e2fs.e2fs_log_bsize + LOG_MINBSIZE - DEV_BSHIFT;
fs->e2fs_bsize = MINBSIZE << fs->e2fs.e2fs_log_bsize;
fs->e2fs_bshift = LOG_MINBSIZE + fs->e2fs.e2fs_log_bsize;
fs->e2fs_qbmask = fs->e2fs_bsize - 1;
fs->e2fs_bmask = ~fs->e2fs_qbmask;
fs->e2fs_ngdb =
howmany(fs->e2fs_ncg, fs->e2fs_bsize / sizeof(struct ext2_gd));
fs->e2fs_ipb = fs->e2fs_bsize / EXT2_DINODE_SIZE(fs);
fs->e2fs_itpg = fs->e2fs.e2fs_ipg / fs->e2fs_ipb;
brelse(bp, 0);
/*
* Step 3: re-read summary information from disk.
*/
for (i = 0; i < fs->e2fs_ngdb; i++) {
error = bread(devvp ,
EXT2_FSBTODB(fs, fs->e2fs.e2fs_first_dblock +
1 /* superblock */ + i),
fs->e2fs_bsize, NOCRED, 0, &bp);
if (error) {
return (error);
}
e2fs_cgload((struct ext2_gd *)bp->b_data,
&fs->e2fs_gd[i * fs->e2fs_bsize / sizeof(struct ext2_gd)],
fs->e2fs_bsize);
brelse(bp, 0);
}
/* Allocate a marker vnode. */
mvp = vnalloc(mp);
/*
* NOTE: not using the TAILQ_FOREACH here since in this loop vgone()
* and vclean() can be called indirectly
*/
mutex_enter(&mntvnode_lock);
loop:
for (vp = TAILQ_FIRST(&mp->mnt_vnodelist); vp; vp = vunmark(mvp)) {
vmark(mvp, vp);
if (vp->v_mount != mp || vismarker(vp))
continue;
/*
* Step 4: invalidate all inactive vnodes.
*/
if (vrecycle(vp, &mntvnode_lock)) {
mutex_enter(&mntvnode_lock);
(void)vunmark(mvp);
goto loop;
}
/*
* Step 5: invalidate all cached file data.
*/
mutex_enter(vp->v_interlock);
mutex_exit(&mntvnode_lock);
if (vget(vp, LK_EXCLUSIVE)) {
mutex_enter(&mntvnode_lock);
(void)vunmark(mvp);
goto loop;
}
if (vinvalbuf(vp, 0, cred, l, 0, 0))
panic("ext2fs_reload: dirty2");
/*
* Step 6: re-read inode data for all active vnodes.
*/
ip = VTOI(vp);
error = bread(devvp, EXT2_FSBTODB(fs, ino_to_fsba(fs, ip->i_number)),
(int)fs->e2fs_bsize, NOCRED, 0, &bp);
if (error) {
vput(vp);
mutex_enter(&mntvnode_lock);
(void)vunmark(mvp);
break;
}
cp = (char *)bp->b_data +
(ino_to_fsbo(fs, ip->i_number) * EXT2_DINODE_SIZE(fs));
e2fs_iload((struct ext2fs_dinode *)cp, ip->i_din.e2fs_din);
ext2fs_set_inode_guid(ip);
brelse(bp, 0);
vput(vp);
mutex_enter(&mntvnode_lock);
}
mutex_exit(&mntvnode_lock);
vnfree(mvp);
return (error);
}
/*
* Last reference to an inode. If necessary, write or delete it.
*/
int
ufs_inactive(void *v)
{
struct vop_inactive_args *ap = v;
struct vnode *vp = ap->a_vp;
struct inode *ip = VTOI(vp);
struct proc *p = ap->a_p;
mode_t mode;
int error = 0;
#ifdef DIAGNOSTIC
extern int prtactive;
if (prtactive && vp->v_usecount != 0)
vprint("ffs_inactive: pushing active", vp);
#endif
/*
* Ignore inodes related to stale file handles.
*/
if (ip->i_din1 == NULL || DIP(ip, mode) == 0)
goto out;
if (DIP(ip, nlink) <= 0 && (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
if (getinoquota(ip) == 0)
(void)ufs_quota_free_inode(ip, NOCRED);
error = UFS_TRUNCATE(ip, (off_t)0, IO_EXT | IO_NORMAL, NOCRED);
DIP_ASSIGN(ip, rdev, 0);
mode = DIP(ip, mode);
DIP_ASSIGN(ip, mode, 0);
ip->i_flag |= IN_CHANGE | IN_UPDATE;
/*
* Setting the mode to zero needs to wait for the inode to be
* written just as does a change to the link count. So, rather
* than creating a new entry point to do the same thing, we
* just use softdep_change_linkcnt(). Also, we can't let
* softdep co-opt us to help on its worklist, as we may end up
* trying to recycle vnodes and getting to this same point a
* couple of times, blowing the kernel stack. However, this
* could be optimized by checking if we are coming from
* vrele(), vput() or vclean() (by checking for VXLOCK) and
* just avoiding the co-opt to happen in the last case.
*/
if (DOINGSOFTDEP(vp))
softdep_change_linkcnt(ip, 1);
UFS_INODE_FREE(ip, ip->i_number, mode);
}
if (ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_MODIFIED | IN_UPDATE)) {
UFS_UPDATE(ip, 0);
}
out:
VOP_UNLOCK(vp, 0, p);
/*
* If we are done with the inode, reclaim it
* so that it can be reused immediately.
*/
if (ip->i_din1 == NULL || DIP(ip, mode) == 0)
vrecycle(vp, p);
return (error);
}
/*
* Last reference to an inode. If necessary, write or delete it.
*/
int
ufs_inactive(void *v)
{
struct vop_inactive_args *ap = v;
struct vnode *vp = ap->a_vp;
struct inode *ip = VTOI(vp);
struct fs *fs = ip->i_fs;
struct proc *p = curproc;
mode_t mode;
int error = 0, logged = 0, truncate_error = 0;
#ifdef DIAGNOSTIC
extern int prtactive;
if (prtactive && vp->v_usecount != 0)
vprint("ufs_inactive: pushing active", vp);
#endif
UFS_WAPBL_JUNLOCK_ASSERT(vp->v_mount);
/*
* Ignore inodes related to stale file handles.
*/
if (ip->i_din1 == NULL || DIP(ip, mode) == 0)
goto out;
if (DIP(ip, nlink) <= 0 && (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
error = UFS_WAPBL_BEGIN(vp->v_mount);
if (error)
goto out;
logged = 1;
if (getinoquota(ip) == 0)
(void)ufs_quota_free_inode(ip, NOCRED);
if (DIP(ip, size) != 0 && vp->v_mount->mnt_wapbl) {
/*
* When journaling, only truncate one indirect block at
* a time.
*/
uint64_t incr = MNINDIR(ip->i_ump) << fs->fs_bshift;
uint64_t base = NDADDR << fs->fs_bshift;
while (!error && DIP(ip, size) > base + incr) {
/*
* round down to next full indirect block
* boundary.
*/
uint64_t nsize = base +
((DIP(ip, size) - base - 1) &
~(incr - 1));
error = UFS_TRUNCATE(ip, nsize, 0, NOCRED);
if (error)
break;
UFS_WAPBL_END(vp->v_mount);
error = UFS_WAPBL_BEGIN(vp->v_mount);
if (error)
goto out;
}
}
if (error == 0) {
truncate_error = UFS_TRUNCATE(ip, (off_t)0, 0, NOCRED);
/* XXX pedro: remove me */
if (truncate_error)
printf("UFS_TRUNCATE()=%d\n", truncate_error);
}
DIP_ASSIGN(ip, rdev, 0);
mode = DIP(ip, mode);
DIP_ASSIGN(ip, mode, 0);
ip->i_flag |= IN_CHANGE | IN_UPDATE;
/*
* Setting the mode to zero needs to wait for the inode to be
* written just as does a change to the link count. So, rather
* than creating a new entry point to do the same thing, we
* just use softdep_change_linkcnt(). Also, we can't let
* softdep co-opt us to help on its worklist, as we may end up
* trying to recycle vnodes and getting to this same point a
* couple of times, blowing the kernel stack. However, this
* could be optimized by checking if we are coming from
* vrele(), vput() or vclean() (by checking for VXLOCK) and
* just avoiding the co-opt to happen in the last case.
*/
if (DOINGSOFTDEP(vp))
softdep_change_linkcnt(ip, 1);
UFS_INODE_FREE(ip, ip->i_number, mode);
}
if (ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_MODIFIED | IN_UPDATE)) {
if (!logged++) {
int err;
err = UFS_WAPBL_BEGIN(vp->v_mount);
if (err) {
error = err;
goto out;
}
}
UFS_UPDATE(ip, 0);
}
if (logged)
UFS_WAPBL_END(vp->v_mount);
out:
VOP_UNLOCK(vp, 0);
/*
* If we are done with the inode, reclaim it
* so that it can be reused immediately.
*/
if (error == 0 && truncate_error == 0 &&
(ip->i_din1 == NULL || DIP(ip, mode) == 0))
vrecycle(vp, p);
return (truncate_error ? truncate_error : error);
}
/*
* Reload all incore data for a filesystem (used after running fsck on
* the root filesystem and finding things to fix). The filesystem must
* be mounted read-only.
*
* Things to do to update the mount:
* 1) invalidate all cached meta-data.
* 2) re-read superblock from disk.
* 3) re-read summary information from disk.
* 4) invalidate all inactive vnodes.
* 5) invalidate all cached file data.
* 6) re-read inode data for all active vnodes.
*/
int
ext2fs_reload(struct mount *mp, kauth_cred_t cred, struct lwp *l)
{
struct vnode *vp, *devvp;
struct inode *ip;
struct buf *bp;
struct m_ext2fs *fs;
struct ext2fs *newfs;
int i, error;
void *cp;
struct ufsmount *ump;
struct vnode_iterator *marker;
if ((mp->mnt_flag & MNT_RDONLY) == 0)
return (EINVAL);
ump = VFSTOUFS(mp);
/*
* Step 1: invalidate all cached meta-data.
*/
devvp = ump->um_devvp;
vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
error = vinvalbuf(devvp, 0, cred, l, 0, 0);
VOP_UNLOCK(devvp);
if (error)
panic("ext2fs_reload: dirty1");
/*
* Step 2: re-read superblock from disk.
*/
error = bread(devvp, SBLOCK, SBSIZE, NOCRED, 0, &bp);
if (error) {
return (error);
}
newfs = (struct ext2fs *)bp->b_data;
error = ext2fs_checksb(newfs, (mp->mnt_flag & MNT_RDONLY) != 0);
if (error) {
brelse(bp, 0);
return (error);
}
fs = ump->um_e2fs;
/*
* copy in new superblock, and compute in-memory values
*/
e2fs_sbload(newfs, &fs->e2fs);
fs->e2fs_ncg =
howmany(fs->e2fs.e2fs_bcount - fs->e2fs.e2fs_first_dblock,
fs->e2fs.e2fs_bpg);
fs->e2fs_fsbtodb = fs->e2fs.e2fs_log_bsize + LOG_MINBSIZE - DEV_BSHIFT;
fs->e2fs_bsize = MINBSIZE << fs->e2fs.e2fs_log_bsize;
fs->e2fs_bshift = LOG_MINBSIZE + fs->e2fs.e2fs_log_bsize;
fs->e2fs_qbmask = fs->e2fs_bsize - 1;
fs->e2fs_bmask = ~fs->e2fs_qbmask;
fs->e2fs_ngdb =
howmany(fs->e2fs_ncg, fs->e2fs_bsize / sizeof(struct ext2_gd));
fs->e2fs_ipb = fs->e2fs_bsize / EXT2_DINODE_SIZE(fs);
fs->e2fs_itpg = fs->e2fs.e2fs_ipg / fs->e2fs_ipb;
brelse(bp, 0);
/*
* Step 3: re-read summary information from disk.
*/
for (i = 0; i < fs->e2fs_ngdb; i++) {
error = bread(devvp ,
EXT2_FSBTODB(fs, fs->e2fs.e2fs_first_dblock +
1 /* superblock */ + i),
fs->e2fs_bsize, NOCRED, 0, &bp);
if (error) {
return (error);
}
e2fs_cgload((struct ext2_gd *)bp->b_data,
&fs->e2fs_gd[i * fs->e2fs_bsize / sizeof(struct ext2_gd)],
fs->e2fs_bsize);
brelse(bp, 0);
}
vfs_vnode_iterator_init(mp, &marker);
while ((vp = vfs_vnode_iterator_next(marker, NULL, NULL))) {
/*
* Step 4: invalidate all inactive vnodes.
*/
if (vrecycle(vp))
continue;
/*
* Step 5: invalidate all cached file data.
*/
if (vn_lock(vp, LK_EXCLUSIVE)) {
vrele(vp);
continue;
}
if (vinvalbuf(vp, 0, cred, l, 0, 0))
panic("ext2fs_reload: dirty2");
/*
* Step 6: re-read inode data for all active vnodes.
*/
ip = VTOI(vp);
error = bread(devvp, EXT2_FSBTODB(fs, ino_to_fsba(fs, ip->i_number)),
(int)fs->e2fs_bsize, NOCRED, 0, &bp);
if (error) {
vput(vp);
break;
}
cp = (char *)bp->b_data +
(ino_to_fsbo(fs, ip->i_number) * EXT2_DINODE_SIZE(fs));
e2fs_iload((struct ext2fs_dinode *)cp, ip->i_din.e2fs_din);
ext2fs_set_inode_guid(ip);
brelse(bp, 0);
vput(vp);
}
vfs_vnode_iterator_destroy(marker);
return (error);
}
/*
* Reload all incore data for a filesystem (used after running fsck on
* the root filesystem and finding things to fix). The filesystem must
* be mounted read-only.
*
* Things to do to update the mount:
* 1) invalidate all cached meta-data.
* 2) re-read superblock from disk.
* 3) re-read summary information from disk.
* 4) invalidate all inactive vnodes.
* 5) invalidate all cached file data.
* 6) re-read inode data for all active vnodes.
*/
int
ext2fs_reload(struct mount *mp, kauth_cred_t cred, struct lwp *l)
{
struct vnode *vp, *devvp;
struct inode *ip;
struct buf *bp;
struct m_ext2fs *fs;
struct ext2fs *newfs;
int i, error;
struct ufsmount *ump;
struct vnode_iterator *marker;
if ((mp->mnt_flag & MNT_RDONLY) == 0)
return EINVAL;
ump = VFSTOUFS(mp);
/*
* Step 1: invalidate all cached meta-data.
*/
devvp = ump->um_devvp;
vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
error = vinvalbuf(devvp, 0, cred, l, 0, 0);
VOP_UNLOCK(devvp);
if (error)
panic("ext2fs_reload: dirty1");
fs = ump->um_e2fs;
/*
* Step 2: re-read superblock from disk. Copy in new superblock, and compute
* in-memory values.
*/
error = bread(devvp, SBLOCK, SBSIZE, 0, &bp);
if (error)
return error;
newfs = (struct ext2fs *)bp->b_data;
e2fs_sbload(newfs, &fs->e2fs);
brelse(bp, 0);
error = ext2fs_sbfill(fs, (mp->mnt_flag & MNT_RDONLY) != 0);
if (error)
return error;
/*
* Step 3: re-read summary information from disk.
*/
for (i = 0; i < fs->e2fs_ngdb; i++) {
error = bread(devvp ,
EXT2_FSBTODB(fs, fs->e2fs.e2fs_first_dblock +
1 /* superblock */ + i),
fs->e2fs_bsize, 0, &bp);
if (error) {
return error;
}
e2fs_cgload((struct ext2_gd *)bp->b_data,
&fs->e2fs_gd[i * fs->e2fs_bsize / sizeof(struct ext2_gd)],
fs->e2fs_bsize);
brelse(bp, 0);
}
vfs_vnode_iterator_init(mp, &marker);
while ((vp = vfs_vnode_iterator_next(marker, NULL, NULL))) {
/*
* Step 4: invalidate all inactive vnodes.
*/
if (vrecycle(vp))
continue;
/*
* Step 5: invalidate all cached file data.
*/
if (vn_lock(vp, LK_EXCLUSIVE)) {
vrele(vp);
continue;
}
if (vinvalbuf(vp, 0, cred, l, 0, 0))
panic("ext2fs_reload: dirty2");
/*
* Step 6: re-read inode data for all active vnodes.
*/
ip = VTOI(vp);
error = bread(devvp, EXT2_FSBTODB(fs, ino_to_fsba(fs, ip->i_number)),
(int)fs->e2fs_bsize, 0, &bp);
if (error) {
vput(vp);
break;
}
error = ext2fs_loadvnode_content(fs, ip->i_number, bp, ip);
brelse(bp, 0);
if (error) {
vput(vp);
break;
}
vput(vp);
}
vfs_vnode_iterator_destroy(marker);
return error;
}
