#include "osd_internal.h"
/**
- * Helper function to retrieve DMU object id from fid for accounting object
- */
-inline int osd_quota_fid2dmu(const struct lu_fid *fid, uint64_t *oid)
-{
- int rc = 0;
-
- LASSERT(fid_is_acct(fid));
- switch (fid_oid(fid)) {
- case ACCT_GROUP_OID:
- *oid = DMU_GROUPUSED_OBJECT;
- break;
- case ACCT_USER_OID:
- *oid = DMU_USERUSED_OBJECT;
- break;
- default:
- rc = -EINVAL;
- break;
- }
- return rc;
-}
-
-/**
- * Helper function to estimate the number of inodes in use for a give uid/gid
- * from the block usage
+ * Helper function to estimate the number of inodes in use for the given
+ * uid/gid from the block usage
*/
static uint64_t osd_objset_user_iused(struct osd_device *osd, uint64_t uidbytes)
{
struct dt_rec *dtrec,
const struct dt_key *dtkey)
{
- struct osd_thread_info *info = osd_oti_get(env);
- char *buf = info->oti_buf;
- size_t buflen = sizeof(info->oti_buf);
- struct lquota_acct_rec *rec = (struct lquota_acct_rec *)dtrec;
- struct osd_object *obj = osd_dt_obj(dtobj);
- struct osd_device *osd = osd_obj2dev(obj);
- int rc;
- uint64_t oid = 0;
+ struct osd_thread_info *info = osd_oti_get(env);
+ char *buf = info->oti_buf;
+ struct lquota_acct_rec *rec = (struct lquota_acct_rec *)dtrec;
+ struct osd_object *obj = osd_dt_obj(dtobj);
+ struct osd_device *osd = osd_obj2dev(obj);
+ dnode_t *dn = obj->oo_dn;
+ size_t buflen = sizeof(info->oti_buf);
+ int rc;
ENTRY;
rec->bspace = rec->ispace = 0;
/* convert the 64-bit uid/gid into a string */
snprintf(buf, buflen, "%llx", *((__u64 *)dtkey));
- /* fetch DMU object ID (DMU_USERUSED_OBJECT/DMU_GROUPUSED_OBJECT) to be
- * used */
- rc = osd_quota_fid2dmu(lu_object_fid(&dtobj->do_lu), &oid);
- if (rc)
- RETURN(rc);
+ if (unlikely(!dn)) {
+ CDEBUG(D_QUOTA, "%s: miss accounting obj for %s\n",
+ osd->od_svname, buf);
+
+ RETURN(-ENOENT);
+ }
/* disk usage (in bytes) is maintained by DMU.
* DMU_USERUSED_OBJECT/DMU_GROUPUSED_OBJECT are special objects which
* not associated with any dmu_but_t (see dnode_special_open()). */
- rc = zap_lookup(osd->od_os, oid, buf, sizeof(uint64_t), 1,
- &rec->bspace);
+ rc = osd_zap_lookup(osd, dn->dn_object, dn, buf, sizeof(uint64_t), 1,
+ &rec->bspace);
if (rc == -ENOENT) {
/* user/group has not created anything yet */
CDEBUG(D_QUOTA, "%s: id %s not found in DMU accounting ZAP\n",
osd->od_svname, buf);
+ /* -ENOENT is normal case, convert it as 1. */
+ rc = 1;
} else if (rc) {
RETURN(rc);
}
} else {
snprintf(buf, buflen, OSD_DMU_USEROBJ_PREFIX "%llx",
*((__u64 *)dtkey));
- rc = zap_lookup(osd->od_os, oid, buf, sizeof(uint64_t), 1,
- &rec->ispace);
+ rc = osd_zap_lookup(osd, dn->dn_object, dn, buf,
+ sizeof(uint64_t), 1, &rec->ispace);
if (rc == -ENOENT) {
CDEBUG(D_QUOTA,
"%s: id %s not found dnode accounting\n",
osd->od_svname, buf);
+ /* -ENOENT is normal case, convert it as 1. */
+ rc = 1;
} else if (rc == 0) {
rc = 1;
}
struct dt_object *dt,
__u32 attr)
{
- struct osd_thread_info *info = osd_oti_get(env);
- struct osd_it_quota *it;
- struct lu_object *lo = &dt->do_lu;
- struct osd_device *osd = osd_dev(lo->lo_dev);
- int rc;
+ struct osd_thread_info *info = osd_oti_get(env);
+ struct osd_it_quota *it;
+ struct osd_object *obj = osd_dt_obj(dt);
+ struct osd_device *osd = osd_obj2dev(obj);
+ dnode_t *dn = obj->oo_dn;
+ int rc;
ENTRY;
- LASSERT(lu_object_exists(lo));
+ if (unlikely(!dn)) {
+ CDEBUG(D_QUOTA, "%s: Not found in DMU accounting ZAP\n",
+ osd->od_svname);
+
+ RETURN(ERR_PTR(-ENOENT));
+ }
if (info == NULL)
RETURN(ERR_PTR(-ENOMEM));
RETURN(ERR_PTR(-ENOMEM));
memset(it, 0, sizeof(*it));
- rc = osd_quota_fid2dmu(lu_object_fid(lo), &it->oiq_oid);
- if (rc)
- RETURN(ERR_PTR(rc));
+ it->oiq_oid = dn->dn_object;
/* initialize zap cursor */
rc = osd_zap_cursor_init(&it->oiq_zc, osd->od_os, it->oiq_oid, 0);
}
/* take object reference */
- lu_object_get(lo);
+ lu_object_get(&dt->do_lu);
it->oiq_obj = osd_dt_obj(dt);
it->oiq_reset = 1;
}
/**
+ * Locate the first entry that is for space accounting.
+ */
+static int osd_zap_locate(struct osd_it_quota *it, zap_attribute_t *za)
+{
+ int rc;
+ ENTRY;
+
+ while (1) {
+ rc = -zap_cursor_retrieve(it->oiq_zc, za);
+ if (rc)
+ break;
+
+ if (strncmp(za->za_name, OSD_DMU_USEROBJ_PREFIX,
+ OSD_DMU_USEROBJ_PREFIX_LEN))
+ break;
+
+ zap_cursor_advance(it->oiq_zc);
+ }
+
+ RETURN(rc);
+}
+
+/**
* Move on to the next valid entry.
*
* \param di - osd iterator
if (it->oiq_reset == 0)
zap_cursor_advance(it->oiq_zc);
it->oiq_reset = 0;
- rc = -zap_cursor_retrieve(it->oiq_zc, za);
- if (rc == -ENOENT) /* reached the end */
- rc = 1;
- RETURN(rc);
+
+ rc = osd_zap_locate(it, za);
+ RETURN(rc == -ENOENT ? 1 : rc);
}
/**
ENTRY;
it->oiq_reset = 0;
- rc = -zap_cursor_retrieve(it->oiq_zc, za);
+ rc = osd_zap_locate(it, za);
if (rc)
RETURN(ERR_PTR(rc));
+
rc = kstrtoull(za->za_name, 16, &it->oiq_id);
+ if (rc)
+ CERROR("couldn't parse name %s\n", za->za_name);
RETURN((struct dt_key *) &it->oiq_id);
}
* to read bytes we need to call zap_lookup explicitly.
*/
static int osd_zap_cursor_retrieve_value(const struct lu_env *env,
- zap_cursor_t *zc, char *buf,
- int buf_size, int *bytes_read)
+ struct osd_it_quota *it,
+ char *buf, int buf_size,
+ int *bytes_read)
{
+ const struct lu_fid *fid = lu_object_fid(&it->oiq_obj->oo_dt.do_lu);
zap_attribute_t *za = &osd_oti_get(env)->oti_za;
+ zap_cursor_t *zc = it->oiq_zc;
+ struct osd_device *osd = osd_obj2dev(it->oiq_obj);
int rc, actual_size;
rc = -zap_cursor_retrieve(zc, za);
if (unlikely(rc != 0))
- return -rc;
+ return rc;
if (unlikely(za->za_integer_length <= 0))
return -ERANGE;
buf_size = za->za_num_integers;
}
- rc = -zap_lookup(zc->zc_objset, zc->zc_zapobj,
- za->za_name, za->za_integer_length,
- buf_size, buf);
-
+ /* use correct special ID to request bytes used */
+ rc = osd_zap_lookup(osd, fid_oid(fid) == ACCT_GROUP_OID ?
+ DMU_GROUPUSED_OBJECT : DMU_USERUSED_OBJECT, NULL,
+ za->za_name, za->za_integer_length, buf_size, buf);
if (likely(rc == 0))
*bytes_read = actual_size;
rec->ispace = rec->bspace = 0;
/* retrieve block usage from the DMU accounting object */
- rc = osd_zap_cursor_retrieve_value(env, it->oiq_zc,
- (char *)&rec->bspace,
+ rc = osd_zap_cursor_retrieve_value(env, it, (char *)&rec->bspace,
sizeof(uint64_t), &bytes_read);
if (rc)
RETURN(rc);
if (unlikely(rc != 0))
RETURN(rc);
- /* inode accounting is not maintained by DMU, so we use our own ZAP to
- * track inode usage */
- rc = -zap_lookup(osd->od_os, it->oiq_obj->oo_dn->dn_object,
- za->za_name, sizeof(uint64_t), 1, &rec->ispace);
+ /* inode accounting is maintained by DMU since 0.7.0 */
+ strncpy(info->oti_buf, OSD_DMU_USEROBJ_PREFIX,
+ OSD_DMU_USEROBJ_PREFIX_LEN);
+ strlcpy(info->oti_buf + OSD_DMU_USEROBJ_PREFIX_LEN, za->za_name,
+ sizeof(info->oti_buf) - OSD_DMU_USEROBJ_PREFIX_LEN);
+ rc = osd_zap_lookup(osd, it->oiq_obj->oo_dn->dn_object,
+ it->oiq_obj->oo_dn, info->oti_buf, sizeof(uint64_t),
+ 1, &rec->ispace);
if (rc == -ENOENT)
/* user/group has not created any file yet */
CDEBUG(D_QUOTA, "%s: id %s not found in accounting ZAP\n",
- osd->od_svname, za->za_name);
+ osd->od_svname, info->oti_buf);
else if (rc)
RETURN(rc);
it->oiq_zc = zc;
it->oiq_reset = 0;
- rc = -zap_cursor_retrieve(it->oiq_zc, za);
+ rc = osd_zap_locate(it, za);
if (rc == 0)
rc = 1;
else if (rc == -ENOENT)
rc = 0;
-
RETURN(rc);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff