This patch removes the 'dbg_err()' macro and we now use 'ubifs_err()' instead.
The idea of 'dbg_err()' was to compile out some error message to make the
binary a bit smaller - but I think it was a bad idea.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
This commit is contained in:
Artem Bityutskiy 2012-05-16 20:11:23 +03:00
Родитель f70b7e52aa
Коммит a6aae4dd0f
12 изменённых файлов: 114 добавлений и 119 удалений

Просмотреть файл

@ -716,13 +716,13 @@ out:
return 0;
out_dump:
dbg_err("dumping index node (iip=%d)", i->iip);
ubifs_err("dumping index node (iip=%d)", i->iip);
ubifs_dump_node(c, idx);
list_del(&i->list);
kfree(i);
if (!list_empty(&list)) {
i = list_entry(list.prev, struct idx_node, list);
dbg_err("dumping parent index node");
ubifs_err("dumping parent index node");
ubifs_dump_node(c, &i->idx);
}
out_free:

Просмотреть файл

@ -1285,24 +1285,24 @@ static int dbg_check_key_order(struct ubifs_info *c, struct ubifs_zbranch *zbr1,
err = 1;
key_read(c, &dent1->key, &key);
if (keys_cmp(c, &zbr1->key, &key)) {
dbg_err("1st entry at %d:%d has key %s", zbr1->lnum,
zbr1->offs, dbg_snprintf_key(c, &key, key_buf,
DBG_KEY_BUF_LEN));
dbg_err("but it should have key %s according to tnc",
dbg_snprintf_key(c, &zbr1->key, key_buf,
DBG_KEY_BUF_LEN));
ubifs_err("1st entry at %d:%d has key %s", zbr1->lnum,
zbr1->offs, dbg_snprintf_key(c, &key, key_buf,
DBG_KEY_BUF_LEN));
ubifs_err("but it should have key %s according to tnc",
dbg_snprintf_key(c, &zbr1->key, key_buf,
DBG_KEY_BUF_LEN));
ubifs_dump_node(c, dent1);
goto out_free;
}
key_read(c, &dent2->key, &key);
if (keys_cmp(c, &zbr2->key, &key)) {
dbg_err("2nd entry at %d:%d has key %s", zbr1->lnum,
zbr1->offs, dbg_snprintf_key(c, &key, key_buf,
DBG_KEY_BUF_LEN));
dbg_err("but it should have key %s according to tnc",
dbg_snprintf_key(c, &zbr2->key, key_buf,
DBG_KEY_BUF_LEN));
ubifs_err("2nd entry at %d:%d has key %s", zbr1->lnum,
zbr1->offs, dbg_snprintf_key(c, &key, key_buf,
DBG_KEY_BUF_LEN));
ubifs_err("but it should have key %s according to tnc",
dbg_snprintf_key(c, &zbr2->key, key_buf,
DBG_KEY_BUF_LEN));
ubifs_dump_node(c, dent2);
goto out_free;
}
@ -1316,10 +1316,10 @@ static int dbg_check_key_order(struct ubifs_info *c, struct ubifs_zbranch *zbr1,
goto out_free;
}
if (cmp == 0 && nlen1 == nlen2)
dbg_err("2 xent/dent nodes with the same name");
ubifs_err("2 xent/dent nodes with the same name");
else
dbg_err("bad order of colliding key %s",
dbg_snprintf_key(c, &key, key_buf, DBG_KEY_BUF_LEN));
ubifs_err("bad order of colliding key %s",
dbg_snprintf_key(c, &key, key_buf, DBG_KEY_BUF_LEN));
ubifs_msg("first node at %d:%d\n", zbr1->lnum, zbr1->offs);
ubifs_dump_node(c, dent1);

Просмотреть файл

@ -159,10 +159,6 @@ struct ubifs_global_debug_info {
} \
} while (0)
#define dbg_err(fmt, ...) do { \
ubifs_err(fmt, ##__VA_ARGS__); \
} while (0)
#define ubifs_dbg_msg(type, fmt, ...) \
pr_debug("UBIFS DBG " type ": " fmt "\n", ##__VA_ARGS__)

Просмотреть файл

@ -2094,8 +2094,8 @@ static int dbg_chk_pnode(struct ubifs_info *c, struct ubifs_pnode *pnode,
int i;
if (pnode->num != col) {
dbg_err("pnode num %d expected %d parent num %d iip %d",
pnode->num, col, pnode->parent->num, pnode->iip);
ubifs_err("pnode num %d expected %d parent num %d iip %d",
pnode->num, col, pnode->parent->num, pnode->iip);
return -EINVAL;
}
for (i = 0; i < UBIFS_LPT_FANOUT; i++) {
@ -2109,14 +2109,14 @@ static int dbg_chk_pnode(struct ubifs_info *c, struct ubifs_pnode *pnode,
if (lnum >= c->leb_cnt)
continue;
if (lprops->lnum != lnum) {
dbg_err("bad LEB number %d expected %d",
lprops->lnum, lnum);
ubifs_err("bad LEB number %d expected %d",
lprops->lnum, lnum);
return -EINVAL;
}
if (lprops->flags & LPROPS_TAKEN) {
if (cat != LPROPS_UNCAT) {
dbg_err("LEB %d taken but not uncat %d",
lprops->lnum, cat);
ubifs_err("LEB %d taken but not uncat %d",
lprops->lnum, cat);
return -EINVAL;
}
continue;
@ -2128,8 +2128,8 @@ static int dbg_chk_pnode(struct ubifs_info *c, struct ubifs_pnode *pnode,
case LPROPS_FRDI_IDX:
break;
default:
dbg_err("LEB %d index but cat %d",
lprops->lnum, cat);
ubifs_err("LEB %d index but cat %d",
lprops->lnum, cat);
return -EINVAL;
}
} else {
@ -2141,8 +2141,8 @@ static int dbg_chk_pnode(struct ubifs_info *c, struct ubifs_pnode *pnode,
case LPROPS_FREEABLE:
break;
default:
dbg_err("LEB %d not index but cat %d",
lprops->lnum, cat);
ubifs_err("LEB %d not index but cat %d",
lprops->lnum, cat);
return -EINVAL;
}
}
@ -2182,24 +2182,24 @@ static int dbg_chk_pnode(struct ubifs_info *c, struct ubifs_pnode *pnode,
break;
}
if (!found) {
dbg_err("LEB %d cat %d not found in cat heap/list",
lprops->lnum, cat);
ubifs_err("LEB %d cat %d not found in cat heap/list",
lprops->lnum, cat);
return -EINVAL;
}
switch (cat) {
case LPROPS_EMPTY:
if (lprops->free != c->leb_size) {
dbg_err("LEB %d cat %d free %d dirty %d",
lprops->lnum, cat, lprops->free,
lprops->dirty);
ubifs_err("LEB %d cat %d free %d dirty %d",
lprops->lnum, cat, lprops->free,
lprops->dirty);
return -EINVAL;
}
case LPROPS_FREEABLE:
case LPROPS_FRDI_IDX:
if (lprops->free + lprops->dirty != c->leb_size) {
dbg_err("LEB %d cat %d free %d dirty %d",
lprops->lnum, cat, lprops->free,
lprops->dirty);
ubifs_err("LEB %d cat %d free %d dirty %d",
lprops->lnum, cat, lprops->free,
lprops->dirty);
return -EINVAL;
}
}
@ -2233,9 +2233,10 @@ int dbg_check_lpt_nodes(struct ubifs_info *c, struct ubifs_cnode *cnode,
/* cnode is a nnode */
num = calc_nnode_num(row, col);
if (cnode->num != num) {
dbg_err("nnode num %d expected %d "
"parent num %d iip %d", cnode->num, num,
(nnode ? nnode->num : 0), cnode->iip);
ubifs_err("nnode num %d expected %d "
"parent num %d iip %d",
cnode->num, num,
(nnode ? nnode->num : 0), cnode->iip);
return -EINVAL;
}
nn = (struct ubifs_nnode *)cnode;

Просмотреть файл

@ -320,9 +320,8 @@ static int layout_cnodes(struct ubifs_info *c)
return 0;
no_space:
ubifs_err("LPT out of space");
dbg_err("LPT out of space at LEB %d:%d needing %d, done_ltab %d, "
"done_lsave %d", lnum, offs, len, done_ltab, done_lsave);
ubifs_err("LPT out of space at LEB %d:%d needing %d, done_ltab %d, "
"done_lsave %d", lnum, offs, len, done_ltab, done_lsave);
ubifs_dump_lpt_info(c);
ubifs_dump_lpt_lebs(c);
dump_stack();
@ -548,9 +547,8 @@ static int write_cnodes(struct ubifs_info *c)
return 0;
no_space:
ubifs_err("LPT out of space mismatch");
dbg_err("LPT out of space mismatch at LEB %d:%d needing %d, done_ltab "
"%d, done_lsave %d", lnum, offs, len, done_ltab, done_lsave);
ubifs_err("LPT out of space mismatch at LEB %d:%d needing %d, done_ltab "
"%d, done_lsave %d", lnum, offs, len, done_ltab, done_lsave);
ubifs_dump_lpt_info(c);
ubifs_dump_lpt_lebs(c);
dump_stack();
@ -1733,7 +1731,7 @@ int dbg_check_ltab(struct ubifs_info *c)
for (lnum = c->lpt_first; lnum <= c->lpt_last; lnum++) {
err = dbg_check_ltab_lnum(c, lnum);
if (err) {
dbg_err("failed at LEB %d", lnum);
ubifs_err("failed at LEB %d", lnum);
return err;
}
}
@ -1765,8 +1763,8 @@ int dbg_chk_lpt_free_spc(struct ubifs_info *c)
free += c->leb_size;
}
if (free < c->lpt_sz) {
dbg_err("LPT space error: free %lld lpt_sz %lld",
free, c->lpt_sz);
ubifs_err("LPT space error: free %lld lpt_sz %lld",
free, c->lpt_sz);
ubifs_dump_lpt_info(c);
ubifs_dump_lpt_lebs(c);
dump_stack();
@ -1805,13 +1803,13 @@ int dbg_chk_lpt_sz(struct ubifs_info *c, int action, int len)
d->chk_lpt_lebs = 0;
d->chk_lpt_wastage = 0;
if (c->dirty_pn_cnt > c->pnode_cnt) {
dbg_err("dirty pnodes %d exceed max %d",
c->dirty_pn_cnt, c->pnode_cnt);
ubifs_err("dirty pnodes %d exceed max %d",
c->dirty_pn_cnt, c->pnode_cnt);
err = -EINVAL;
}
if (c->dirty_nn_cnt > c->nnode_cnt) {
dbg_err("dirty nnodes %d exceed max %d",
c->dirty_nn_cnt, c->nnode_cnt);
ubifs_err("dirty nnodes %d exceed max %d",
c->dirty_nn_cnt, c->nnode_cnt);
err = -EINVAL;
}
return err;
@ -1828,23 +1826,23 @@ int dbg_chk_lpt_sz(struct ubifs_info *c, int action, int len)
chk_lpt_sz *= d->chk_lpt_lebs;
chk_lpt_sz += len - c->nhead_offs;
if (d->chk_lpt_sz != chk_lpt_sz) {
dbg_err("LPT wrote %lld but space used was %lld",
d->chk_lpt_sz, chk_lpt_sz);
ubifs_err("LPT wrote %lld but space used was %lld",
d->chk_lpt_sz, chk_lpt_sz);
err = -EINVAL;
}
if (d->chk_lpt_sz > c->lpt_sz) {
dbg_err("LPT wrote %lld but lpt_sz is %lld",
d->chk_lpt_sz, c->lpt_sz);
ubifs_err("LPT wrote %lld but lpt_sz is %lld",
d->chk_lpt_sz, c->lpt_sz);
err = -EINVAL;
}
if (d->chk_lpt_sz2 && d->chk_lpt_sz != d->chk_lpt_sz2) {
dbg_err("LPT layout size %lld but wrote %lld",
d->chk_lpt_sz, d->chk_lpt_sz2);
ubifs_err("LPT layout size %lld but wrote %lld",
d->chk_lpt_sz, d->chk_lpt_sz2);
err = -EINVAL;
}
if (d->chk_lpt_sz2 && d->new_nhead_offs != len) {
dbg_err("LPT new nhead offs: expected %d was %d",
d->new_nhead_offs, len);
ubifs_err("LPT new nhead offs: expected %d was %d",
d->new_nhead_offs, len);
err = -EINVAL;
}
lpt_sz = (long long)c->pnode_cnt * c->pnode_sz;
@ -1853,8 +1851,8 @@ int dbg_chk_lpt_sz(struct ubifs_info *c, int action, int len)
if (c->big_lpt)
lpt_sz += c->lsave_sz;
if (d->chk_lpt_sz - d->chk_lpt_wastage > lpt_sz) {
dbg_err("LPT chk_lpt_sz %lld + waste %lld exceeds %lld",
d->chk_lpt_sz, d->chk_lpt_wastage, lpt_sz);
ubifs_err("LPT chk_lpt_sz %lld + waste %lld exceeds %lld",
d->chk_lpt_sz, d->chk_lpt_wastage, lpt_sz);
err = -EINVAL;
}
if (err) {

Просмотреть файл

@ -88,7 +88,7 @@ int ubifs_add_orphan(struct ubifs_info *c, ino_t inum)
else if (inum > o->inum)
p = &(*p)->rb_right;
else {
dbg_err("orphaned twice");
ubifs_err("orphaned twice");
spin_unlock(&c->orphan_lock);
kfree(orphan);
return 0;
@ -154,7 +154,7 @@ void ubifs_delete_orphan(struct ubifs_info *c, ino_t inum)
}
}
spin_unlock(&c->orphan_lock);
dbg_err("missing orphan ino %lu", (unsigned long)inum);
ubifs_err("missing orphan ino %lu", (unsigned long)inum);
dump_stack();
}

Просмотреть файл

@ -362,11 +362,11 @@ out_err:
out_free:
ubifs_err("failed to recover master node");
if (mst1) {
dbg_err("dumping first master node");
ubifs_err("dumping first master node");
ubifs_dump_node(c, mst1);
}
if (mst2) {
dbg_err("dumping second master node");
ubifs_err("dumping second master node");
ubifs_dump_node(c, mst2);
}
vfree(buf2);
@ -683,7 +683,7 @@ struct ubifs_scan_leb *ubifs_recover_leb(struct ubifs_info *c, int lnum,
ret, lnum, offs);
break;
} else {
dbg_err("unexpected return value %d", ret);
ubifs_err("unexpected return value %d", ret);
err = -EINVAL;
goto error;
}
@ -789,7 +789,7 @@ struct ubifs_scan_leb *ubifs_recover_leb(struct ubifs_info *c, int lnum,
corrupted_rescan:
/* Re-scan the corrupted data with verbose messages */
dbg_err("corruptio %d", ret);
ubifs_err("corruptio %d", ret);
ubifs_scan_a_node(c, buf, len, lnum, offs, 1);
corrupted:
ubifs_scanned_corruption(c, lnum, offs, buf);
@ -827,17 +827,17 @@ static int get_cs_sqnum(struct ubifs_info *c, int lnum, int offs,
goto out_free;
ret = ubifs_scan_a_node(c, cs_node, UBIFS_CS_NODE_SZ, lnum, offs, 0);
if (ret != SCANNED_A_NODE) {
dbg_err("Not a valid node");
ubifs_err("Not a valid node");
goto out_err;
}
if (cs_node->ch.node_type != UBIFS_CS_NODE) {
dbg_err("Node a CS node, type is %d", cs_node->ch.node_type);
ubifs_err("Node a CS node, type is %d", cs_node->ch.node_type);
goto out_err;
}
if (le64_to_cpu(cs_node->cmt_no) != c->cmt_no) {
dbg_err("CS node cmt_no %llu != current cmt_no %llu",
(unsigned long long)le64_to_cpu(cs_node->cmt_no),
c->cmt_no);
ubifs_err("CS node cmt_no %llu != current cmt_no %llu",
(unsigned long long)le64_to_cpu(cs_node->cmt_no),
c->cmt_no);
goto out_err;
}
*cs_sqnum = le64_to_cpu(cs_node->ch.sqnum);
@ -1138,7 +1138,7 @@ static int grab_empty_leb(struct ubifs_info *c)
*/
lnum = ubifs_find_free_leb_for_idx(c);
if (lnum < 0) {
dbg_err("could not find an empty LEB");
ubifs_err("could not find an empty LEB");
ubifs_dump_lprops(c);
ubifs_dump_budg(c, &c->bi);
return lnum;
@ -1218,7 +1218,7 @@ int ubifs_rcvry_gc_commit(struct ubifs_info *c)
}
mutex_unlock(&wbuf->io_mutex);
if (err < 0) {
dbg_err("GC failed, error %d", err);
ubifs_err("GC failed, error %d", err);
if (err == -EAGAIN)
err = -EINVAL;
return err;

Просмотреть файл

@ -861,16 +861,16 @@ static int replay_log_leb(struct ubifs_info *c, int lnum, int offs, void *sbuf)
* numbers.
*/
if (snod->type != UBIFS_CS_NODE) {
dbg_err("first log node at LEB %d:%d is not CS node",
lnum, offs);
ubifs_err("first log node at LEB %d:%d is not CS node",
lnum, offs);
goto out_dump;
}
if (le64_to_cpu(node->cmt_no) != c->cmt_no) {
dbg_err("first CS node at LEB %d:%d has wrong "
"commit number %llu expected %llu",
lnum, offs,
(unsigned long long)le64_to_cpu(node->cmt_no),
c->cmt_no);
ubifs_err("first CS node at LEB %d:%d has wrong "
"commit number %llu expected %llu",
lnum, offs,
(unsigned long long)le64_to_cpu(node->cmt_no),
c->cmt_no);
goto out_dump;
}
@ -892,7 +892,7 @@ static int replay_log_leb(struct ubifs_info *c, int lnum, int offs, void *sbuf)
/* Make sure the first node sits at offset zero of the LEB */
if (snod->offs != 0) {
dbg_err("first node is not at zero offset");
ubifs_err("first node is not at zero offset");
goto out_dump;
}
@ -905,8 +905,8 @@ static int replay_log_leb(struct ubifs_info *c, int lnum, int offs, void *sbuf)
}
if (snod->sqnum < c->cs_sqnum) {
dbg_err("bad sqnum %llu, commit sqnum %llu",
snod->sqnum, c->cs_sqnum);
ubifs_err("bad sqnum %llu, commit sqnum %llu",
snod->sqnum, c->cs_sqnum);
goto out_dump;
}

Просмотреть файл

@ -109,8 +109,8 @@ int ubifs_scan_a_node(const struct ubifs_info *c, void *buf, int len, int lnum,
/* Make the node pads to 8-byte boundary */
if ((node_len + pad_len) & 7) {
if (!quiet)
dbg_err("bad padding length %d - %d",
offs, offs + node_len + pad_len);
ubifs_err("bad padding length %d - %d",
offs, offs + node_len + pad_len);
return SCANNED_A_BAD_PAD_NODE;
}
@ -245,7 +245,7 @@ void ubifs_scanned_corruption(const struct ubifs_info *c, int lnum, int offs,
len = c->leb_size - offs;
if (len > 8192)
len = 8192;
dbg_err("first %d bytes from LEB %d:%d", len, lnum, offs);
ubifs_err("first %d bytes from LEB %d:%d", len, lnum, offs);
print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 4, buf, len, 1);
}
@ -300,16 +300,16 @@ struct ubifs_scan_leb *ubifs_scan(const struct ubifs_info *c, int lnum,
switch (ret) {
case SCANNED_GARBAGE:
dbg_err("garbage");
ubifs_err("garbage");
goto corrupted;
case SCANNED_A_NODE:
break;
case SCANNED_A_CORRUPT_NODE:
case SCANNED_A_BAD_PAD_NODE:
dbg_err("bad node");
ubifs_err("bad node");
goto corrupted;
default:
dbg_err("unknown");
ubifs_err("unknown");
err = -EINVAL;
goto error;
}

Просмотреть файл

@ -668,8 +668,8 @@ static int init_constants_sb(struct ubifs_info *c)
tmp = UBIFS_CS_NODE_SZ + UBIFS_REF_NODE_SZ * c->jhead_cnt;
tmp = ALIGN(tmp, c->min_io_size);
if (tmp > c->leb_size) {
dbg_err("too small LEB size %d, at least %d needed",
c->leb_size, tmp);
ubifs_err("too small LEB size %d, at least %d needed",
c->leb_size, tmp);
return -EINVAL;
}
@ -683,8 +683,8 @@ static int init_constants_sb(struct ubifs_info *c)
tmp /= c->leb_size;
tmp += 1;
if (c->log_lebs < tmp) {
dbg_err("too small log %d LEBs, required min. %d LEBs",
c->log_lebs, tmp);
ubifs_err("too small log %d LEBs, required min. %d LEBs",
c->log_lebs, tmp);
return -EINVAL;
}
@ -863,7 +863,7 @@ static void free_orphans(struct ubifs_info *c)
orph = list_entry(c->orph_list.next, struct ubifs_orphan, list);
list_del(&orph->list);
kfree(orph);
dbg_err("orphan list not empty at unmount");
ubifs_err("orphan list not empty at unmount");
}
vfree(c->orph_buf);
@ -2126,8 +2126,8 @@ static struct dentry *ubifs_mount(struct file_system_type *fs_type, int flags,
*/
ubi = open_ubi(name, UBI_READONLY);
if (IS_ERR(ubi)) {
dbg_err("cannot open \"%s\", error %d",
name, (int)PTR_ERR(ubi));
ubifs_err("cannot open \"%s\", error %d",
name, (int)PTR_ERR(ubi));
return ERR_CAST(ubi);
}

Просмотреть файл

@ -293,10 +293,10 @@ static int read_znode(struct ubifs_info *c, int lnum, int offs, int len,
lnum, offs, znode->level, znode->child_cnt);
if (znode->child_cnt > c->fanout || znode->level > UBIFS_MAX_LEVELS) {
dbg_err("current fanout %d, branch count %d",
c->fanout, znode->child_cnt);
dbg_err("max levels %d, znode level %d",
UBIFS_MAX_LEVELS, znode->level);
ubifs_err("current fanout %d, branch count %d",
c->fanout, znode->child_cnt);
ubifs_err("max levels %d, znode level %d",
UBIFS_MAX_LEVELS, znode->level);
err = 1;
goto out_dump;
}
@ -316,7 +316,7 @@ static int read_znode(struct ubifs_info *c, int lnum, int offs, int len,
if (zbr->lnum < c->main_first ||
zbr->lnum >= c->leb_cnt || zbr->offs < 0 ||
zbr->offs + zbr->len > c->leb_size || zbr->offs & 7) {
dbg_err("bad branch %d", i);
ubifs_err("bad branch %d", i);
err = 2;
goto out_dump;
}
@ -340,19 +340,19 @@ static int read_znode(struct ubifs_info *c, int lnum, int offs, int len,
type = key_type(c, &zbr->key);
if (c->ranges[type].max_len == 0) {
if (zbr->len != c->ranges[type].len) {
dbg_err("bad target node (type %d) length (%d)",
type, zbr->len);
dbg_err("have to be %d", c->ranges[type].len);
ubifs_err("bad target node (type %d) length (%d)",
type, zbr->len);
ubifs_err("have to be %d", c->ranges[type].len);
err = 4;
goto out_dump;
}
} else if (zbr->len < c->ranges[type].min_len ||
zbr->len > c->ranges[type].max_len) {
dbg_err("bad target node (type %d) length (%d)",
type, zbr->len);
dbg_err("have to be in range of %d-%d",
c->ranges[type].min_len,
c->ranges[type].max_len);
ubifs_err("bad target node (type %d) length (%d)",
type, zbr->len);
ubifs_err("have to be in range of %d-%d",
c->ranges[type].min_len,
c->ranges[type].max_len);
err = 5;
goto out_dump;
}
@ -370,13 +370,13 @@ static int read_znode(struct ubifs_info *c, int lnum, int offs, int len,
cmp = keys_cmp(c, key1, key2);
if (cmp > 0) {
dbg_err("bad key order (keys %d and %d)", i, i + 1);
ubifs_err("bad key order (keys %d and %d)", i, i + 1);
err = 6;
goto out_dump;
} else if (cmp == 0 && !is_hash_key(c, key1)) {
/* These can only be keys with colliding hash */
dbg_err("keys %d and %d are not hashed but equivalent",
i, i + 1);
ubifs_err("keys %d and %d are not hashed but equivalent",
i, i + 1);
err = 7;
goto out_dump;
}

Просмотреть файл

@ -399,8 +399,8 @@ ssize_t ubifs_getxattr(struct dentry *dentry, const char *name, void *buf,
if (buf) {
/* If @buf is %NULL we are supposed to return the length */
if (ui->data_len > size) {
dbg_err("buffer size %zd, xattr len %d",
size, ui->data_len);
ubifs_err("buffer size %zd, xattr len %d",
size, ui->data_len);
err = -ERANGE;
goto out_iput;
}