LU-12037 mdt: add option for cross-MDT rename

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

diff --git a/lustre/mdt/mdt_lproc.c b/lustre/mdt/mdt_lproc.c
index 3007c4d..9bc2522 100644 (file)
--- a/lustre/mdt/mdt_lproc.c
+++ b/lustre/mdt/mdt_lproc.c
@@ -708,27 +708,6 @@ mdt_enable_dir_migration_seq_write(struct file *file, const char __user *buffer,
 }
 LPROC_SEQ_FOPS(mdt_enable_dir_migration);
 
-
-/**
- * Show MDT policy for handling dirty metadata under a lock being cancelled.
- *
- * \param[in] m                seq_file handle
- * \param[in] data     unused for single entry
- *
- * \retval             0 on success
- * \retval             negative value on error
- */
-static int mdt_slc_seq_show(struct seq_file *m, void *data)
-{
-       struct obd_device *obd = m->private;
-       struct lu_target *tgt = obd->u.obt.obt_lut;
-       char *slc_states[] = {"never", "blocking", "always" };
-
-       seq_printf(m, "%s\n", slc_states[tgt->lut_sync_lock_cancel]);
-       return 0;
-}
-LPROC_SEQ_FOPS_RO(mdt_slc);
-
 /**
  * Show MDT async commit count.
  *
@@ -1003,6 +982,34 @@ mdt_readonly_seq_write(struct file *file, const char __user *buffer,
 }
 LPROC_SEQ_FOPS(mdt_readonly);
 
+static int mdt_enable_remote_rename_seq_show(struct seq_file *m, void *data)
+{
+       struct obd_device *obd = m->private;
+       struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
+
+       seq_printf(m, "%u\n",  mdt->mdt_enable_remote_rename);
+       return 0;
+}
+
+static ssize_t
+mdt_enable_remote_rename_seq_write(struct file *file, const char __user *buffer,
+                                  size_t count, loff_t *off)
+{
+       struct seq_file *m = file->private_data;
+       struct obd_device *obd = m->private;
+       struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
+       bool val;
+       int rc;
+
+       rc = kstrtobool_from_user(buffer, count, &val);
+       if (rc)
+               return rc;
+
+       mdt->mdt_enable_remote_rename = val;
+       return count;
+}
+LPROC_SEQ_FOPS(mdt_enable_remote_rename);
+
 LPROC_SEQ_FOPS_RO_TYPE(mdt, recovery_status);
 LPROC_SEQ_FOPS_RO_TYPE(mdt, num_exports);
 LPROC_SEQ_FOPS_RO_TYPE(mdt, target_instance);
@@ -1072,14 +1079,14 @@ static struct lprocfs_vars lprocfs_mdt_obd_vars[] = {
          .fops =       &mdt_enable_striped_dir_fops            },
        { .name =       "enable_dir_migration",
          .fops =       &mdt_enable_dir_migration_fops          },
+       { .name =       "enable_remote_rename",
+         .fops =       &mdt_enable_remote_rename_fops          },
        { .name =       "hsm_control",
          .fops =       &mdt_hsm_cdt_control_fops               },
        { .name =       "recovery_time_hard",
          .fops =       &mdt_recovery_time_hard_fops    },
        { .name =       "recovery_time_soft",
          .fops =       &mdt_recovery_time_soft_fops    },
-       { .name =       "sync_lock_cancel",
-         .fops =       &mdt_slc_fops                           },
        { .name =       "async_commit_count",
          .fops =       &mdt_async_commit_count_fops            },
        { .name =       "sync_count",
@@ -1214,6 +1221,13 @@ int mdt_procfs_init(struct mdt_device *mdt, const char *name)
                return rc;
        }
 
+       rc = tgt_tunables_init(&mdt->mdt_lut);
+       if (rc) {
+               CERROR("%s: failed to init target tunables: rc = %d\n",
+                      mdt_obd_name(mdt), rc);
+               return rc;
+       }
+
        rc = hsm_cdt_procfs_init(mdt);
        if (rc) {
                CERROR("%s: cannot create hsm proc entries: rc = %d\n",
@@ -1265,6 +1279,7 @@ void mdt_procfs_fini(struct mdt_device *mdt)
 
        lprocfs_free_per_client_stats(obd);
        hsm_cdt_procfs_fini(mdt);
+       tgt_tunables_fini(&mdt->mdt_lut);
        lprocfs_obd_cleanup(obd);
        lprocfs_free_md_stats(obd);
        lprocfs_free_obd_stats(obd);