LU-15971 llite: implicit default LMV inherit

[fs/lustre-release.git] / lustre / mdt / mdt_lproc.c

diff --git a/lustre/mdt/mdt_lproc.c b/lustre/mdt/mdt_lproc.c
index b5634ef..c813c05 100644 (file)
--- a/lustre/mdt/mdt_lproc.c
+++ b/lustre/mdt/mdt_lproc.c
@@ -1366,6 +1366,38 @@ static ssize_t enable_remote_subdir_mount_store(struct kobject *kobj,
 }
 LUSTRE_RW_ATTR(enable_remote_subdir_mount);
 
+static ssize_t enable_dmv_implicit_inherit_show(struct kobject *kobj,
+                                               struct attribute *attr,
+                                               char *buf)
+{
+       struct obd_device *obd = container_of(kobj, struct obd_device,
+                                             obd_kset.kobj);
+       struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
+
+       return scnprintf(buf, PAGE_SIZE, "%u\n",
+                        mdt->mdt_enable_dmv_implicit_inherit);
+}
+
+static ssize_t enable_dmv_implicit_inherit_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 mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
+       bool val;
+       int rc;
+
+       rc = kstrtobool(buffer, &val);
+       if (rc)
+               return rc;
+
+       mdt->mdt_enable_dmv_implicit_inherit = val;
+       return count;
+}
+LUSTRE_RW_ATTR(enable_dmv_implicit_inherit);
+
 /**
  * Show if the OFD enforces T10PI checksum.
  *
@@ -1578,6 +1610,7 @@ static struct attribute *mdt_attrs[] = {
        &lustre_attr_checksum_t10pi_enforce.attr,
        &lustre_attr_enable_remote_subdir_mount.attr,
        &lustre_attr_max_mod_rpcs_in_flight.attr,
+       &lustre_attr_enable_dmv_implicit_inherit.attr,
        NULL,
 };