int
nandfs_node_create(struct nandfsmount *nmp, struct nandfs_node **node,
uint16_t mode)
{
struct nandfs_alloc_request req;
struct nandfs_device *nandfsdev;
struct nandfs_mdt *mdt;
struct nandfs_node *ifile;
struct nandfs_inode *inode;
struct vnode *vp;
uint32_t entry;
int error = 0;
nandfsdev = nmp->nm_nandfsdev;
mdt = &nandfsdev->nd_ifile_mdt;
ifile = nmp->nm_ifile_node;
vp = NTOV(ifile);
VOP_LOCK(vp, LK_EXCLUSIVE);
/* Allocate new inode in ifile */
req.entrynum = nandfsdev->nd_last_ino + 1;
error = nandfs_find_free_entry(mdt, ifile, &req);
if (error) {
VOP_UNLOCK(vp, 0);
return (error);
}
error = nandfs_get_entry_block(mdt, ifile, &req, &entry, 1);
if (error) {
VOP_UNLOCK(vp, 0);
return (error);
}
/* Inode initialization */
inode = ((struct nandfs_inode *) req.bp_entry->b_data) + entry;
nandfs_inode_init(inode, mode);
error = nandfs_alloc_entry(mdt, &req);
if (error) {
VOP_UNLOCK(vp, 0);
return (error);
}
VOP_UNLOCK(vp, 0);
nandfsdev->nd_last_ino = req.entrynum;
error = nandfs_get_node(nmp, req.entrynum, node);
DPRINTF(IFILE, ("%s: node: %p ino: %#jx\n",
__func__, node, (uintmax_t)((*node)->nn_ino)));
return (error);
}
int
nandfs_vblock_alloc(struct nandfs_device *nandfsdev, nandfs_daddr_t *vblock)
{
struct nandfs_node *dat;
struct nandfs_mdt *mdt;
struct nandfs_alloc_request req;
struct nandfs_dat_entry *dat_entry;
uint64_t start;
uint32_t entry;
int locked, error;
dat = nandfsdev->nd_dat_node;
mdt = &nandfsdev->nd_dat_mdt;
start = nandfsdev->nd_last_cno + 1;
locked = NANDFS_VOP_ISLOCKED(NTOV(dat));
if (!locked)
VOP_LOCK(NTOV(dat), LK_EXCLUSIVE);
req.entrynum = 0;
/* Alloc vblock number */
error = nandfs_find_free_entry(mdt, dat, &req);
if (error) {
nandfs_error("%s: cannot find free vblk entry\n",
__func__);
if (!locked)
VOP_UNLOCK(NTOV(dat), 0);
return (error);
}
/* Read/create buffer */
error = nandfs_get_entry_block(mdt, dat, &req, &entry, 1);
if (error) {
nandfs_error("%s: cannot get free vblk entry\n",
__func__);
nandfs_abort_entry(&req);
if (!locked)
VOP_UNLOCK(NTOV(dat), 0);
return (error);
}
/* Fill out vblock data */
dat_entry = (struct nandfs_dat_entry *) req.bp_entry->b_data;
dat_entry[entry].de_start = start;
dat_entry[entry].de_end = UINTMAX_MAX;
dat_entry[entry].de_blocknr = 0;
/* Commit allocation */
error = nandfs_alloc_entry(mdt, &req);
if (error) {
nandfs_error("%s: cannot get free vblk entry\n",
__func__);
if (!locked)
VOP_UNLOCK(NTOV(dat), 0);
return (error);
}
/* Return allocated vblock */
*vblock = req.entrynum;
DPRINTF(DAT, ("%s: allocated vblock %#jx\n",
__func__, (uintmax_t)*vblock));
if (!locked)
VOP_UNLOCK(NTOV(dat), 0);
return (error);
}