LU-12932 lod: restore qos_thresholdrr sysfs file

The introduction of directory stripe allocation by space usage
renamed the lod sysfs file qos_thresholdrr to lod_qos_thresholdrr
but this breaks backwards compatiablity. Restore qos_thresholdrr.

Fixes: c1d0a355a6 ("LU-12624 lod: alloc dir stripes by QoS")

Change-Id: I93bf29cbec3c3a5a7a8527353aa8005ebd340ec5
Signed-off-by: James Simmons <jsimmons@infradead.org>
Reviewed-on: https://review.whamcloud.com/36667
Tested-by: jenkins <devops@whamcloud.com>
Reviewed-by: Lai Siyao <lai.siyao@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>

diff --git a/lustre/lod/lproc_lod.c b/lustre/lod/lproc_lod.c
index 8297ae3..6a64861 100644 (file)
--- a/lustre/lod/lproc_lod.c
+++ b/lustre/lod/lproc_lod.c
@@ -453,8 +453,8 @@ static ssize_t qos_prio_free_show(struct kobject *kobj,
  * 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_thresholdrr_store() and lq_threshold_rr to
  * determine what constitutes "space imbalanced" OSTs.
  */
 static ssize_t __qos_prio_free_store(struct kobject *kobj,
@@ -522,7 +522,7 @@ static ssize_t mdt_qos_thresholdrr_show(struct kobject *kobj,
        return __qos_thresholdrr_show(kobj, attr, buf, true);
 }
 
-static ssize_t lod_qos_thresholdrr_show(struct kobject *kobj,
+static ssize_t qos_thresholdrr_show(struct kobject *kobj,
                                        struct attribute *attr, char *buf)
 {
        return __qos_thresholdrr_show(kobj, attr, buf, false);
@@ -569,15 +569,15 @@ static ssize_t mdt_qos_thresholdrr_store(struct kobject *kobj,
        return __qos_thresholdrr_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_thresholdrr_store(struct kobject *kobj,
+                                    struct attribute *attr,
+                                    const char *buffer, size_t count)
 {
        return __qos_thresholdrr_store(kobj, attr, buffer, count, false);
 }
 
 LUSTRE_RW_ATTR(mdt_qos_thresholdrr);
-LUSTRE_RW_ATTR(lod_qos_thresholdrr);
+LUSTRE_RW_ATTR(qos_thresholdrr);
 
 /**
  * Show expiration period used to refresh cached statfs data, which
@@ -908,7 +908,7 @@ static struct attribute *lod_attrs[] = {
        &lustre_attr_numobd.attr,
        &lustre_attr_qos_maxage.attr,
        &lustre_attr_qos_prio_free.attr,
-       &lustre_attr_lod_qos_thresholdrr.attr,
+       &lustre_attr_qos_thresholdrr.attr,
        &lustre_attr_mdt_stripecount.attr,
        &lustre_attr_mdt_stripetype.attr,
        &lustre_attr_mdt_activeobd.attr,