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LU-13783 procfs: fix improper prop_ops fields
[fs/lustre-release.git] / lustre / lmv / lproc_lmv.c
index 95fe927..feded16 100644 (file)
@@ -27,7 +27,6 @@
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
  */
 
 #define DEBUG_SUBSYSTEM S_CLASS
 static ssize_t numobd_show(struct kobject *kobj, struct attribute *attr,
                           char *buf)
 {
-       struct obd_device *dev = container_of(kobj, struct obd_device,
+       struct obd_device *obd = container_of(kobj, struct obd_device,
                                              obd_kset.kobj);
-       struct lmv_desc *desc;
 
-        desc = &dev->u.lmv.desc;
-       return sprintf(buf, "%u\n", desc->ld_tgt_count);
+       return scnprintf(buf, PAGE_SIZE, "%u\n", obd->u.lmv.lmv_mdt_count);
 }
 LUSTRE_RO_ATTR(numobd);
 
 static ssize_t activeobd_show(struct kobject *kobj, struct attribute *attr,
                              char *buf)
 {
-       struct obd_device *dev = container_of(kobj, struct obd_device,
+       struct obd_device *obd = container_of(kobj, struct obd_device,
                                              obd_kset.kobj);
-       struct lmv_desc *desc;
 
-        desc = &dev->u.lmv.desc;
-       return sprintf(buf, "%u\n", desc->ld_active_tgt_count);
+       return scnprintf(buf, PAGE_SIZE, "%u\n",
+               obd->u.lmv.lmv_mdt_descs.ltd_lmv_desc.ld_active_tgt_count);
 }
 LUSTRE_RO_ATTR(activeobd);
 
 static ssize_t desc_uuid_show(struct kobject *kobj, struct attribute *attr,
                              char *buf)
 {
-       struct obd_device *dev = container_of(kobj, struct obd_device,
+       struct obd_device *obd = container_of(kobj, struct obd_device,
                                              obd_kset.kobj);
-       struct lmv_desc *desc;
 
-       desc = &dev->u.lmv.desc;
-       return sprintf(buf, "%s\n", desc->ld_uuid.uuid);
+       return scnprintf(buf, PAGE_SIZE, "%s\n",
+                       obd->u.lmv.lmv_mdt_descs.ltd_lmv_desc.ld_uuid.uuid);
 }
 LUSTRE_RO_ATTR(desc_uuid);
 
+static ssize_t qos_maxage_show(struct kobject *kobj,
+                              struct attribute *attr,
+                              char *buf)
+{
+       struct obd_device *obd = container_of(kobj, struct obd_device,
+                                             obd_kset.kobj);
+
+       return scnprintf(buf, PAGE_SIZE, "%u\n",
+                       obd->u.lmv.lmv_mdt_descs.ltd_lmv_desc.ld_qos_maxage);
+}
+
+static ssize_t qos_maxage_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);
+       unsigned int val;
+       int rc;
+
+       rc = kstrtouint(buffer, 0, &val);
+       if (rc)
+               return rc;
+
+       obd->u.lmv.lmv_mdt_descs.ltd_lmv_desc.ld_qos_maxage = val;
+
+       return count;
+}
+LUSTRE_RW_ATTR(qos_maxage);
+
+static ssize_t qos_prio_free_show(struct kobject *kobj,
+                                 struct attribute *attr,
+                                 char *buf)
+{
+       struct obd_device *obd = container_of(kobj, struct obd_device,
+                                             obd_kset.kobj);
+
+       return scnprintf(buf, PAGE_SIZE, "%u%%\n",
+                       (obd->u.lmv.lmv_qos.lq_prio_free * 100 + 255) >> 8);
+}
+
+static ssize_t qos_prio_free_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 lmv_obd *lmv = &obd->u.lmv;
+       unsigned int val;
+       int rc;
+
+       rc = kstrtouint(buffer, 0, &val);
+       if (rc)
+               return rc;
+
+       if (val > 100)
+               return -EINVAL;
+
+       lmv->lmv_qos.lq_prio_free = (val << 8) / 100;
+       set_bit(LQ_DIRTY, &lmv->lmv_qos.lq_flags);
+       set_bit(LQ_RESET, &lmv->lmv_qos.lq_flags);
+
+       return count;
+}
+LUSTRE_RW_ATTR(qos_prio_free);
+
+static ssize_t qos_threshold_rr_show(struct kobject *kobj,
+                                    struct attribute *attr,
+                                    char *buf)
+{
+       struct obd_device *obd = container_of(kobj, struct obd_device,
+                                             obd_kset.kobj);
+
+       return scnprintf(buf, PAGE_SIZE, "%u%%\n",
+                       (obd->u.lmv.lmv_qos.lq_threshold_rr * 100 + 255) >> 8);
+}
+
+static ssize_t qos_threshold_rr_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 lmv_obd *lmv = &obd->u.lmv;
+       unsigned int val;
+       int rc;
+
+       rc = kstrtouint(buffer, 0, &val);
+       if (rc)
+               return rc;
+
+       if (val > 100)
+               return -EINVAL;
+
+       lmv->lmv_qos.lq_threshold_rr = (val << 8) / 100;
+       set_bit(LQ_DIRTY, &lmv->lmv_qos.lq_flags);
+
+       return count;
+}
+LUSTRE_RW_ATTR(qos_threshold_rr);
+
 #ifdef CONFIG_PROC_FS
 static void *lmv_tgt_seq_start(struct seq_file *p, loff_t *pos)
 {
-       struct obd_device       *dev = p->private;
-       struct lmv_obd          *lmv = &dev->u.lmv;
+       struct obd_device *obd = p->private;
+       struct lmv_obd *lmv = &obd->u.lmv;
+       struct lu_tgt_desc *tgt;
+
+       while (*pos < lmv->lmv_mdt_descs.ltd_tgts_size) {
+               tgt = lmv_tgt(lmv, (__u32)*pos);
+               if (tgt)
+                       return tgt;
 
-       while (*pos < lmv->tgts_size) {
-               if (lmv->tgts[*pos])
-                       return lmv->tgts[*pos];
                ++*pos;
        }
 
-       return  NULL;
+       return NULL;
 }
 
 static void lmv_tgt_seq_stop(struct seq_file *p, void *v)
@@ -96,17 +198,20 @@ static void lmv_tgt_seq_stop(struct seq_file *p, void *v)
 
 static void *lmv_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos)
 {
-       struct obd_device       *dev = p->private;
-       struct lmv_obd          *lmv = &dev->u.lmv;
+       struct obd_device *obd = p->private;
+       struct lmv_obd *lmv = &obd->u.lmv;
+       struct lu_tgt_desc *tgt;
 
        ++*pos;
-       while (*pos < lmv->tgts_size) {
-               if (lmv->tgts[*pos])
-                       return lmv->tgts[*pos];
+       while (*pos < lmv->lmv_mdt_descs.ltd_tgts_size) {
+               tgt = lmv_tgt(lmv, (__u32)*pos);
+               if (tgt)
+                       return tgt;
+
                ++*pos;
        }
 
-       return  NULL;
+       return NULL;
 }
 
 static int lmv_tgt_seq_show(struct seq_file *p, void *v)
@@ -117,7 +222,7 @@ static int lmv_tgt_seq_show(struct seq_file *p, void *v)
                return 0;
 
        seq_printf(p, "%u: %s %sACTIVE\n",
-                  tgt->ltd_idx, tgt->ltd_uuid.uuid,
+                  tgt->ltd_index, tgt->ltd_uuid.uuid,
                   tgt->ltd_active ? "" : "IN");
        return 0;
 }
@@ -143,12 +248,12 @@ static int lmv_target_seq_open(struct inode *inode, struct file *file)
        return 0;
 }
 
-static const struct file_operations lmv_proc_target_fops = {
-        .owner                = THIS_MODULE,
-        .open                 = lmv_target_seq_open,
-        .read                 = seq_read,
-        .llseek               = seq_lseek,
-        .release              = seq_release,
+static const struct proc_ops lmv_proc_target_fops = {
+       PROC_OWNER(THIS_MODULE)
+       .proc_open      = lmv_target_seq_open,
+       .proc_read      = seq_read,
+       .proc_lseek     = seq_lseek,
+       .proc_release   = seq_release,
 };
 #endif /* CONFIG_PROC_FS */
 
@@ -156,6 +261,9 @@ static struct attribute *lmv_attrs[] = {
        &lustre_attr_activeobd.attr,
        &lustre_attr_desc_uuid.attr,
        &lustre_attr_numobd.attr,
+       &lustre_attr_qos_maxage.attr,
+       &lustre_attr_qos_prio_free.attr,
+       &lustre_attr_qos_threshold_rr.attr,
        NULL,
 };