down(&oh->ot_sa_lock);
while (!list_empty(&oh->ot_sa_list)) {
obj = list_entry(oh->ot_sa_list.next,
- struct osd_object, oo_sa_linkage);
+ struct osd_object, oo_sa_linkage);
sa_spill_rele(obj->oo_sa_hdl);
write_lock(&obj->oo_attr_lock);
list_del_init(&obj->oo_sa_linkage);
mo->oo_dt.do_ops = &osd_obj_ops;
l->lo_ops = &osd_lu_obj_ops;
INIT_LIST_HEAD(&mo->oo_sa_linkage);
+ INIT_LIST_HEAD(&mo->oo_unlinked_linkage);
init_rwsem(&mo->oo_sem);
sema_init(&mo->oo_guard, 1);
rwlock_init(&mo->oo_attr_lock);
+ mo->oo_destroy = OSD_DESTROY_NONE;
return l;
} else {
return NULL;
int osd_object_init0(const struct lu_env *env, struct osd_object *obj)
{
struct osd_device *osd = osd_obj2dev(obj);
- const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
+ const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
int rc = 0;
ENTRY;
OBD_SLAB_FREE_PTR(obj, osd_object_kmem);
}
-static void __osd_declare_object_destroy(const struct lu_env *env,
- struct osd_object *obj,
- struct osd_thandle *oh)
+static int
+osd_object_unlinked_add(struct osd_object *obj, struct osd_thandle *oh)
{
- struct osd_device *osd = osd_obj2dev(obj);
- dmu_buf_t *db = obj->oo_db;
- zap_attribute_t *za = &osd_oti_get(env)->oti_za;
- uint64_t oid = db->db_object, xid;
- dmu_tx_t *tx = oh->ot_tx;
- zap_cursor_t *zc;
- int rc = 0;
+ int rc = -EBUSY;
- dmu_tx_hold_free(tx, oid, 0, DMU_OBJECT_END);
+ down(&obj->oo_guard);
- /* zap holding xattrs */
- if (obj->oo_xattr != ZFS_NO_OBJECT) {
- oid = obj->oo_xattr;
+ LASSERT(obj->oo_destroy == OSD_DESTROY_ASYNC);
- dmu_tx_hold_free(tx, oid, 0, DMU_OBJECT_END);
+ if (likely(list_empty(&obj->oo_unlinked_linkage))) {
+ list_add(&obj->oo_unlinked_linkage, &oh->ot_unlinked_list);
+ rc = 0;
+ }
- rc = osd_zap_cursor_init(&zc, osd->od_os, oid, 0);
- if (rc)
- goto out;
-
- while ((rc = -zap_cursor_retrieve(zc, za)) == 0) {
- BUG_ON(za->za_integer_length != sizeof(uint64_t));
- BUG_ON(za->za_num_integers != 1);
-
- rc = -zap_lookup(osd->od_os, obj->oo_xattr, za->za_name,
- sizeof(uint64_t), 1, &xid);
- if (rc) {
- CERROR("%s: xattr lookup failed: rc = %d\n",
- osd->od_svname, rc);
- goto out_err;
- }
- dmu_tx_hold_free(tx, xid, 0, DMU_OBJECT_END);
-
- zap_cursor_advance(zc);
- }
- if (rc == -ENOENT)
- rc = 0;
-out_err:
- osd_zap_cursor_fini(zc);
+ up(&obj->oo_guard);
+
+ return rc;
+}
+
+/* Default to max data size covered by a level-1 indirect block */
+static unsigned long osd_sync_destroy_max_size =
+ 1UL << (DN_MAX_INDBLKSHIFT - SPA_BLKPTRSHIFT + SPA_MAXBLOCKSHIFT);
+CFS_MODULE_PARM(osd_sync_destroy_max_size, "ul", ulong, 0444,
+ "Maximum object size to use synchronous destroy.");
+
+static inline void
+osd_object_set_destroy_type(struct osd_object *obj)
+{
+ /*
+ * Lock-less OST_WRITE can race with OST_DESTROY, so set destroy type
+ * only once and use it consistently thereafter.
+ */
+ down(&obj->oo_guard);
+ if (obj->oo_destroy == OSD_DESTROY_NONE) {
+ if (obj->oo_attr.la_size <= osd_sync_destroy_max_size)
+ obj->oo_destroy = OSD_DESTROY_SYNC;
+ else /* Larger objects are destroyed asynchronously */
+ obj->oo_destroy = OSD_DESTROY_ASYNC;
}
-out:
- if (rc && tx->tx_err == 0)
- tx->tx_err = -rc;
+ up(&obj->oo_guard);
}
static int osd_declare_object_destroy(const struct lu_env *env,
struct osd_object *obj = osd_dt_obj(dt);
struct osd_device *osd = osd_obj2dev(obj);
struct osd_thandle *oh;
- uint64_t zapid;
int rc;
+ uint64_t zapid;
ENTRY;
LASSERT(th != NULL);
oh = container_of0(th, struct osd_thandle, ot_super);
LASSERT(oh->ot_tx != NULL);
- /* declare that we'll destroy the object */
- __osd_declare_object_destroy(env, obj, oh);
-
/* declare that we'll remove object from fid-dnode mapping */
zapid = osd_get_name_n_idx(env, osd, fid, buf);
dmu_tx_hold_bonus(oh->ot_tx, zapid);
- dmu_tx_hold_zap(oh->ot_tx, zapid, 0, buf);
+ dmu_tx_hold_zap(oh->ot_tx, zapid, FALSE, buf);
+
+ osd_declare_xattrs_destroy(env, obj, oh);
/* declare that we'll remove object from inode accounting ZAPs */
dmu_tx_hold_bonus(oh->ot_tx, osd->od_iusr_oid);
- dmu_tx_hold_zap(oh->ot_tx, osd->od_iusr_oid, 0, buf);
+ dmu_tx_hold_zap(oh->ot_tx, osd->od_iusr_oid, FALSE, buf);
dmu_tx_hold_bonus(oh->ot_tx, osd->od_igrp_oid);
- dmu_tx_hold_zap(oh->ot_tx, osd->od_igrp_oid, 0, buf);
+ dmu_tx_hold_zap(oh->ot_tx, osd->od_igrp_oid, FALSE, buf);
/* one less inode */
rc = osd_declare_quota(env, osd, obj->oo_attr.la_uid,
/* data to be truncated */
rc = osd_declare_quota(env, osd, obj->oo_attr.la_uid,
obj->oo_attr.la_gid, 0, oh, true, NULL, false);
- RETURN(rc);
-}
-
-/*
- * Delete a DMU object
- *
- * The transaction passed to this routine must have
- * dmu_tx_hold_free(tx, oid, 0, DMU_OBJECT_END) called
- * and then assigned to a transaction group.
- *
- * This will release db and set it to NULL to prevent further dbuf releases.
- */
-static int __osd_object_destroy(const struct lu_env *env,
- struct osd_object *obj,
- dmu_tx_t *tx, void *tag)
-{
- struct osd_device *osd = osd_obj2dev(obj);
- uint64_t xid;
- zap_attribute_t *za = &osd_oti_get(env)->oti_za;
- zap_cursor_t *zc;
- int rc;
-
- /* Assert that the transaction has been assigned to a
- transaction group. */
- LASSERT(tx->tx_txg != 0);
-
- /* zap holding xattrs */
- if (obj->oo_xattr != ZFS_NO_OBJECT) {
- rc = osd_zap_cursor_init(&zc, osd->od_os, obj->oo_xattr, 0);
- if (rc)
- return rc;
- while ((rc = -zap_cursor_retrieve(zc, za)) == 0) {
- BUG_ON(za->za_integer_length != sizeof(uint64_t));
- BUG_ON(za->za_num_integers != 1);
-
- rc = -zap_lookup(osd->od_os, obj->oo_xattr, za->za_name,
- sizeof(uint64_t), 1, &xid);
- if (rc) {
- CERROR("%s: lookup xattr %s failed: rc = %d\n",
- osd->od_svname, za->za_name, rc);
- continue;
- }
- rc = -dmu_object_free(osd->od_os, xid, tx);
- if (rc)
- CERROR("%s: fetch xattr %s failed: rc = %d\n",
- osd->od_svname, za->za_name, rc);
- zap_cursor_advance(zc);
- }
- osd_zap_cursor_fini(zc);
+ if (rc)
+ RETURN(rc);
- rc = -dmu_object_free(osd->od_os, obj->oo_xattr, tx);
- if (rc)
- CERROR("%s: freeing xattr failed: rc = %d\n",
- osd->od_svname, rc);
- }
+ osd_object_set_destroy_type(obj);
+ if (obj->oo_destroy == OSD_DESTROY_SYNC)
+ dmu_tx_hold_free(oh->ot_tx, obj->oo_db->db_object,
+ 0, DMU_OBJECT_END);
+ else
+ dmu_tx_hold_zap(oh->ot_tx, osd->od_unlinkedid, TRUE, NULL);
- return -dmu_object_free(osd->od_os, obj->oo_db->db_object, tx);
+ RETURN(0);
}
static int osd_object_destroy(const struct lu_env *env,
- struct dt_object *dt,
- struct thandle *th)
+ struct dt_object *dt, struct thandle *th)
{
char *buf = osd_oti_get(env)->oti_str;
struct osd_object *obj = osd_dt_obj(dt);
const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
struct osd_thandle *oh;
int rc;
- uint64_t zapid;
+ uint64_t oid, zapid;
ENTRY;
LASSERT(obj->oo_db != NULL);
LASSERT(oh != NULL);
LASSERT(oh->ot_tx != NULL);
- zapid = osd_get_name_n_idx(env, osd, fid, buf);
-
/* remove obj ref from index dir (it depends) */
+ zapid = osd_get_name_n_idx(env, osd, fid, buf);
rc = -zap_remove(osd->od_os, zapid, buf, oh->ot_tx);
if (rc) {
- CERROR("%s: zap_remove() failed: rc = %d\n",
- osd->od_svname, rc);
+ CERROR("%s: zap_remove(%s) failed: rc = %d\n",
+ osd->od_svname, buf, rc);
+ GOTO(out, rc);
+ }
+
+ rc = osd_xattrs_destroy(env, obj, oh);
+ if (rc) {
+ CERROR("%s: cannot destroy xattrs for %s: rc = %d\n",
+ osd->od_svname, buf, rc);
GOTO(out, rc);
}
* operation if something goes wrong while updating accounting, but we
* still log an error message to notify the administrator */
rc = -zap_increment_int(osd->od_os, osd->od_iusr_oid,
- obj->oo_attr.la_uid, -1, oh->ot_tx);
+ obj->oo_attr.la_uid, -1, oh->ot_tx);
if (rc)
CERROR("%s: failed to remove "DFID" from accounting ZAP for usr"
- " %d: rc = %d\n", osd->od_svname, PFID(fid),
- obj->oo_attr.la_uid, rc);
+ " %d: rc = %d\n", osd->od_svname, PFID(fid),
+ obj->oo_attr.la_uid, rc);
rc = -zap_increment_int(osd->od_os, osd->od_igrp_oid,
obj->oo_attr.la_gid, -1, oh->ot_tx);
if (rc)
CERROR("%s: failed to remove "DFID" from accounting ZAP for grp"
- " %d: rc = %d\n", osd->od_svname, PFID(fid),
- obj->oo_attr.la_gid, rc);
+ " %d: rc = %d\n", osd->od_svname, PFID(fid),
+ obj->oo_attr.la_gid, rc);
- /* kill object */
- rc = __osd_object_destroy(env, obj, oh->ot_tx, osd_obj_tag);
- if (rc) {
- CERROR("%s: __osd_object_destroy() failed: rc = %d\n",
- osd->od_svname, rc);
- GOTO(out, rc);
+ oid = obj->oo_db->db_object;
+ if (obj->oo_destroy == OSD_DESTROY_SYNC) {
+ rc = -dmu_object_free(osd->od_os, oid, oh->ot_tx);
+ if (rc)
+ CERROR("%s: failed to free %s "LPU64": rc = %d\n",
+ osd->od_svname, buf, oid, rc);
+ } else { /* asynchronous destroy */
+ rc = osd_object_unlinked_add(obj, oh);
+ if (rc)
+ GOTO(out, rc);
+
+ rc = -zap_add_int(osd->od_os, osd->od_unlinkedid,
+ oid, oh->ot_tx);
+ if (rc)
+ CERROR("%s: zap_add_int() failed %s "LPU64": rc = %d\n",
+ osd->od_svname, buf, oid, rc);
}
out:
git://git.whamcloud.com / fs / lustre-release.git / blobdiff