/**
* Add a record to the end of link ea buf
**/
int linkea_add_buf(struct linkea_data *ldata, const struct lu_name *lname,
const struct lu_fid *pfid)
{
LASSERT(ldata->ld_leh);
if (!lname || !pfid)
return -EINVAL;
ldata->ld_reclen = lname->ln_namelen + sizeof(struct link_ea_entry);
if (ldata->ld_leh->leh_len + ldata->ld_reclen >
ldata->ld_buf->lb_len) {
if (lu_buf_check_and_grow(ldata->ld_buf,
ldata->ld_leh->leh_len +
ldata->ld_reclen) < 0)
return -ENOMEM;
}
ldata->ld_leh = ldata->ld_buf->lb_buf;
ldata->ld_lee = ldata->ld_buf->lb_buf + ldata->ld_leh->leh_len;
ldata->ld_reclen = linkea_entry_pack(ldata->ld_lee, lname, pfid);
ldata->ld_leh->leh_len += ldata->ld_reclen;
ldata->ld_leh->leh_reccount++;
CDEBUG(D_INODE, "New link_ea name '" DFID ":%.*s' is added\n",
PFID(pfid), lname->ln_namelen, lname->ln_name);
return 0;
}
/**
* Add a record to the end of link ea buf
**/
int linkea_add_buf(struct linkea_data *ldata, const struct lu_name *lname,
const struct lu_fid *pfid)
{
struct link_ea_header *leh = ldata->ld_leh;
int reclen;
LASSERT(leh != NULL);
if (lname == NULL || pfid == NULL)
return -EINVAL;
reclen = lname->ln_namelen + sizeof(struct link_ea_entry);
if (unlikely(leh->leh_len + reclen > MAX_LINKEA_SIZE)) {
/* Use 32-bits to save the overflow time, although it will
* shrink the cfs_time_current_sec() returned 64-bits value
* to 32-bits value, it is still quite large and can be used
* for about 140 years. That is enough. */
leh->leh_overflow_time = cfs_time_current_sec();
if (unlikely(leh->leh_overflow_time == 0))
leh->leh_overflow_time++;
CDEBUG(D_INODE, "No enough space to hold linkea entry '"
DFID": %.*s' at %u\n", PFID(pfid), lname->ln_namelen,
lname->ln_name, leh->leh_overflow_time);
return 0;
}
if (leh->leh_len + reclen > ldata->ld_buf->lb_len) {
if (lu_buf_check_and_grow(ldata->ld_buf,
leh->leh_len + reclen) < 0)
return -ENOMEM;
leh = ldata->ld_leh = ldata->ld_buf->lb_buf;
}
ldata->ld_lee = ldata->ld_buf->lb_buf + leh->leh_len;
ldata->ld_reclen = linkea_entry_pack(ldata->ld_lee, lname, pfid);
leh->leh_len += ldata->ld_reclen;
leh->leh_reccount++;
CDEBUG(D_INODE, "New link_ea name '"DFID":%.*s' is added\n",
PFID(pfid), lname->ln_namelen, lname->ln_name);
return 0;
}