* Set QoS free space priority parameter.
*
* Set the relative priority of free OST space compared to OST load when OSTs
- * are space imbalanced. See lod_qos_priofree_seq_show() for description of
- * this parameter. See lod_qos_thresholdrr_seq_write() and lq_threshold_rr to
+ * are space imbalanced. See qos_priofree_show() for description of
+ * this parameter. See qos_threshold_rr_store() and lq_threshold_rr to
* determine what constitutes "space imbalanced" OSTs.
*/
static ssize_t __qos_prio_free_store(struct kobject *kobj,
/**
* Show threshold for "same space on all OSTs" rule.
*/
-static ssize_t __qos_thresholdrr_show(struct kobject *kobj,
- struct attribute *attr, char *buf,
- bool is_mdt)
+static ssize_t __qos_threshold_rr_show(struct kobject *kobj,
+ struct attribute *attr, char *buf,
+ bool is_mdt)
{
struct dt_device *dt = container_of(kobj, struct dt_device,
dd_kobj);
(ltd->ltd_qos.lq_threshold_rr * 100 + 255) >> 8);
}
-static ssize_t mdt_qos_thresholdrr_show(struct kobject *kobj,
- struct attribute *attr, char *buf)
+static ssize_t mdt_qos_threshold_rr_show(struct kobject *kobj,
+ struct attribute *attr, char *buf)
{
- return __qos_thresholdrr_show(kobj, attr, buf, true);
+ return __qos_threshold_rr_show(kobj, attr, buf, true);
}
-static ssize_t lod_qos_thresholdrr_show(struct kobject *kobj,
- struct attribute *attr, char *buf)
+static ssize_t qos_threshold_rr_show(struct kobject *kobj,
+ struct attribute *attr, char *buf)
{
- return __qos_thresholdrr_show(kobj, attr, buf, false);
+ return __qos_threshold_rr_show(kobj, attr, buf, false);
}
/**
* space so that more full OSTs are chosen less often, otherwise use the
* round-robin allocator for efficiency and performance.
*/
-static ssize_t __qos_thresholdrr_store(struct kobject *kobj,
- struct attribute *attr,
- const char *buffer, size_t count,
- bool is_mdt)
+static ssize_t __qos_threshold_rr_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buffer, size_t count,
+ bool is_mdt)
{
struct dt_device *dt = container_of(kobj, struct dt_device,
dd_kobj);
struct lod_device *lod = dt2lod_dev(dt);
struct lu_tgt_descs *ltd = is_mdt ? &lod->lod_mdt_descs :
&lod->lod_ost_descs;
+ char buf[6], *tmp;
unsigned int val;
int rc;
- rc = kstrtouint(buffer, 0, &val);
+ /* "100%\n\0" should be largest string */
+ if (count >= sizeof(buf))
+ return -ERANGE;
+
+ strncpy(buf, buffer, sizeof(buf));
+ buf[sizeof(buf) - 1] = '\0';
+ tmp = strchr(buf, '%');
+ if (tmp)
+ *tmp = '\0';
+
+ rc = kstrtouint(buf, 0, &val);
if (rc)
return rc;
return count;
}
-static ssize_t mdt_qos_thresholdrr_store(struct kobject *kobj,
- struct attribute *attr,
- const char *buffer, size_t count)
+static ssize_t mdt_qos_threshold_rr_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buffer, size_t count)
{
- return __qos_thresholdrr_store(kobj, attr, buffer, count, true);
+ return __qos_threshold_rr_store(kobj, attr, buffer, count, true);
}
-static ssize_t lod_qos_thresholdrr_store(struct kobject *kobj,
- struct attribute *attr,
- const char *buffer, size_t count)
+static ssize_t qos_threshold_rr_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buffer, size_t count)
{
- return __qos_thresholdrr_store(kobj, attr, buffer, count, false);
+ return __qos_threshold_rr_store(kobj, attr, buffer, count, false);
}
-LUSTRE_RW_ATTR(mdt_qos_thresholdrr);
-LUSTRE_RW_ATTR(lod_qos_thresholdrr);
+LUSTRE_RW_ATTR(mdt_qos_threshold_rr);
+LUSTRE_RW_ATTR(qos_threshold_rr);
/**
* Show expiration period used to refresh cached statfs data, which
&lustre_attr_numobd.attr,
&lustre_attr_qos_maxage.attr,
&lustre_attr_qos_prio_free.attr,
- &lustre_attr_lod_qos_thresholdrr.attr,
+ &lustre_attr_qos_threshold_rr.attr,
&lustre_attr_mdt_stripecount.attr,
&lustre_attr_mdt_stripetype.attr,
&lustre_attr_mdt_activeobd.attr,
&lustre_attr_mdt_numobd.attr,
&lustre_attr_mdt_qos_maxage.attr,
&lustre_attr_mdt_qos_prio_free.attr,
- &lustre_attr_mdt_qos_thresholdrr.attr,
+ &lustre_attr_mdt_qos_threshold_rr.attr,
NULL,
};