static int osd_oi_index_create_one(struct osd_thread_info *info,
struct osd_device *osd, const char *name,
struct dt_index_features *feat)
{
const struct lu_env *env = info->oti_env;
struct osd_inode_id *id = &info->oti_id;
struct buffer_head *bh;
struct inode *inode;
struct ldiskfs_dir_entry_2 *de;
struct dentry *dentry;
struct super_block *sb = osd_sb(osd);
struct inode *dir = sb->s_root->d_inode;
handle_t *jh;
int rc;
dentry = osd_child_dentry_by_inode(env, dir, name, strlen(name));
bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, NULL);
if (bh) {
osd_id_gen(id, le32_to_cpu(de->inode), OSD_OII_NOGEN);
brelse(bh);
inode = osd_iget(info, osd, id);
if (!IS_ERR(inode)) {
iput(inode);
inode = ERR_PTR(-EEXIST);
}
return PTR_ERR(inode);
}
jh = osd_journal_start_sb(sb, LDISKFS_HT_MISC, 100);
if (IS_ERR(jh))
return PTR_ERR(jh);
inode = ldiskfs_create_inode(jh, dir, (S_IFREG | S_IRUGO | S_IWUSR));
if (IS_ERR(inode)) {
ldiskfs_journal_stop(jh);
return PTR_ERR(inode);
}
ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
unlock_new_inode(inode);
if (feat->dif_flags & DT_IND_VARKEY)
rc = iam_lvar_create(inode, feat->dif_keysize_max,
feat->dif_ptrsize, feat->dif_recsize_max,
jh);
else
rc = iam_lfix_create(inode, feat->dif_keysize_max,
feat->dif_ptrsize, feat->dif_recsize_max,
jh);
dentry = osd_child_dentry_by_inode(env, dir, name, strlen(name));
rc = osd_ldiskfs_add_entry(info, jh, dentry, inode, NULL);
ldiskfs_journal_stop(jh);
iput(inode);
return rc;
}
/**
* Open an OI(Ojbect Index) container.
*
* \param name Name of OI container
* \param objp Pointer of returned OI
*
* \retval 0 success
* \retval -ve failure
*/
static int osd_oi_open(struct osd_thread_info *info, struct osd_device *osd,
char *name, struct osd_oi **oi_slot, bool create)
{
struct osd_directory *dir;
struct iam_container *bag;
struct inode *inode;
struct osd_oi *oi;
int rc;
ENTRY;
oi_feat.dif_keysize_min = sizeof(struct lu_fid);
oi_feat.dif_keysize_max = sizeof(struct lu_fid);
inode = osd_oi_index_open(info, osd, name, &oi_feat, create);
if (IS_ERR(inode))
RETURN(PTR_ERR(inode));
ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NO_OI);
/* 'What the @fid is' is not imporatant, because these objects
* have no OI mappings, and only are visible inside the OSD.*/
lu_igif_build(&info->oti_fid, inode->i_ino, inode->i_generation);
rc = osd_ea_fid_set(info, inode, &info->oti_fid, LMAC_NOT_IN_OI, 0);
if (rc != 0)
GOTO(out_inode, rc);
OBD_ALLOC_PTR(oi);
if (oi == NULL)
GOTO(out_inode, rc = -ENOMEM);
oi->oi_inode = inode;
dir = &oi->oi_dir;
bag = &dir->od_container;
rc = iam_container_init(bag, &dir->od_descr, inode);
if (rc < 0)
GOTO(out_free, rc);
rc = iam_container_setup(bag);
if (rc < 0)
GOTO(out_container, rc);
*oi_slot = oi;
RETURN(0);
out_container:
iam_container_fini(bag);
out_free:
OBD_FREE_PTR(oi);
out_inode:
iput(inode);
return rc;
}
