* this OST are slowed down. It also reduces the contention on the OST
* RAID device, allowing it to rebuild more quickly.
*
- * \param[in] m seq_file handle
- * \param[in] data unused for single entry
- *
- * \retval 0 on success
- * \retval negative value on error
+ * \retval count of bytes written
*/
static ssize_t degraded_show(struct kobject *kobj, struct attribute *attr,
char *buf)
* the underlying RAID storage, so that they can mark an OST
* as having degraded performance.
*
- * \param[in] file proc file
- * \param[in] buffer string which represents mode
- * 1: set degraded mode
- * 0: unset degraded mode
* \param[in] count \a buffer length
* \param[in] off unused for single entry
*
LUSTRE_RW_ATTR(degraded);
/**
+ * Show if the OFD is in no precreate mode.
+ *
+ * This means OFD has been adminstratively disabled at the OST to prevent
+ * the MDS from creating any new files on the OST, though existing files
+ * can still be read, written, and unlinked.
+ *
+ * \retval number of bytes written
+ */
+static ssize_t no_precreate_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
+{
+ struct obd_device *obd = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+
+ return snprintf(buf, PAGE_SIZE, "%u\n", ofd->ofd_no_precreate);
+}
+
+/**
+ * Set OFD to no precreate mode.
+ *
+ * This is used to interface to userspace administrative tools to
+ * disable new object creation on the OST.
+ *
+ * \param[in] count \a buffer length
+ *
+ * \retval \a count on success
+ * \retval negative number on error
+ */
+static ssize_t no_precreate_store(struct kobject *kobj, struct attribute *attr,
+ const char *buffer, size_t count)
+{
+ struct obd_device *obd = container_of(kobj, struct obd_device,
+ obd_kset.kobj);
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+ bool val;
+ int rc;
+
+ rc = kstrtobool(buffer, &val);
+ if (rc)
+ return rc;
+
+ spin_lock(&ofd->ofd_flags_lock);
+ ofd->ofd_no_precreate = val;
+ spin_unlock(&ofd->ofd_flags_lock);
+
+ return count;
+}
+LUSTRE_RW_ATTR(no_precreate);
+
+/**
* Show OFD filesystem type.
*
* \param[in] m seq_file handle
#endif
LPROC_SEQ_FOPS_RO_TYPE(ofd, recovery_status);
-LPROC_SEQ_FOPS_RW_TYPE(ofd, recovery_time_soft);
-LPROC_SEQ_FOPS_RW_TYPE(ofd, recovery_time_hard);
+LUSTRE_RW_ATTR(recovery_time_hard);
+LUSTRE_RW_ATTR(recovery_time_soft);
+LUSTRE_RW_ATTR(ir_factor);
+
LPROC_SEQ_FOPS_WR_ONLY(ofd, evict_client);
-LPROC_SEQ_FOPS_RO_TYPE(ofd, num_exports);
-LPROC_SEQ_FOPS_RO_TYPE(ofd, target_instance);
-LPROC_SEQ_FOPS_RW_TYPE(ofd, ir_factor);
LPROC_SEQ_FOPS_RW_TYPE(ofd, checksum_dump);
-LPROC_SEQ_FOPS_RW_TYPE(ofd, job_interval);
+LUSTRE_RW_ATTR(job_cleanup_interval);
+
+LUSTRE_RO_ATTR(tot_dirty);
+LUSTRE_RO_ATTR(tot_granted);
+LUSTRE_RO_ATTR(tot_pending);
+LUSTRE_RW_ATTR(grant_compat_disable);
+LUSTRE_RO_ATTR(instance);
-LPROC_SEQ_FOPS_RO(tgt_tot_dirty);
-LPROC_SEQ_FOPS_RO(tgt_tot_granted);
-LPROC_SEQ_FOPS_RO(tgt_tot_pending);
-LPROC_SEQ_FOPS(tgt_grant_compat_disable);
+LUSTRE_RO_ATTR(num_exports);
struct lprocfs_vars lprocfs_ofd_obd_vars[] = {
{ .name = "last_id",
.fops = &ofd_last_id_fops },
- { .name = "tot_dirty",
- .fops = &tgt_tot_dirty_fops },
- { .name = "tot_pending",
- .fops = &tgt_tot_pending_fops },
- { .name = "tot_granted",
- .fops = &tgt_tot_granted_fops },
{ .name = "recovery_status",
.fops = &ofd_recovery_status_fops },
- { .name = "recovery_time_soft",
- .fops = &ofd_recovery_time_soft_fops },
- { .name = "recovery_time_hard",
- .fops = &ofd_recovery_time_hard_fops },
{ .name = "evict_client",
.fops = &ofd_evict_client_fops },
- { .name = "num_exports",
- .fops = &ofd_num_exports_fops },
{ .name = "brw_size",
.fops = &ofd_brw_size_fops },
- { .name = "instance",
- .fops = &ofd_target_instance_fops },
- { .name = "ir_factor",
- .fops = &ofd_ir_factor_fops },
{ .name = "checksum_dump",
.fops = &ofd_checksum_dump_fops },
- { .name = "grant_compat_disable",
- .fops = &tgt_grant_compat_disable_fops },
- { .name = "job_cleanup_interval",
- .fops = &ofd_job_interval_fops },
{ .name = "lfsck_layout",
.fops = &ofd_lfsck_layout_fops },
{ .name = "lfsck_verify_pfid",
LPROC_SEQ_FOPS(lprocfs_nid_stats_clear);
static struct attribute *ofd_attrs[] = {
+ &lustre_attr_tot_dirty.attr,
+ &lustre_attr_tot_granted.attr,
+ &lustre_attr_tot_pending.attr,
+ &lustre_attr_grant_compat_disable.attr,
+ &lustre_attr_instance.attr,
+ &lustre_attr_recovery_time_hard.attr,
+ &lustre_attr_recovery_time_soft.attr,
+ &lustre_attr_ir_factor.attr,
+ &lustre_attr_num_exports.attr,
&lustre_attr_seqs_allocated.attr,
&lustre_attr_grant_precreate.attr,
&lustre_attr_precreate_batch.attr,
&lustre_attr_degraded.attr,
&lustre_attr_fstype.attr,
+ &lustre_attr_no_precreate.attr,
&lustre_attr_sync_journal.attr,
&lustre_attr_soft_sync_limit.attr,
&lustre_attr_lfsck_speed_limit.attr,
+ &lustre_attr_job_cleanup_interval.attr,
&lustre_attr_checksum_t10pi_enforce.attr,
#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 14, 53, 0)
&lustre_attr_read_cache_enable.attr,
git://git.whamcloud.com / fs / lustre-release.git / blobdiff