LU-1187 mdt: Only create remote dir on MDT0

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

diff --git a/lustre/mdt/mdt_lproc.c b/lustre/mdt/mdt_lproc.c
index 75b7aff..deae5bb 100644 (file)
--- a/lustre/mdt/mdt_lproc.c
+++ b/lustre/mdt/mdt_lproc.c
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ * Copyright (c) 2011, 2012, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -61,16 +61,9 @@
 #include <lustre_mds.h>
 #include <lustre_mdt.h>
 #include <lprocfs_status.h>
-#include <lu_time.h>
 #include "mdt_internal.h"
 #include <lnet/lib-lnet.h>
 
-enum {
-        LPROC_MDT_NR
-};
-static const char *mdt_proc_names[LPROC_MDT_NR] = {
-};
-
 /**
  * The rename stats output would be YAML formats, like
  * rename_stats:
@@ -176,7 +169,7 @@ static int lproc_mdt_attach_rename_seqstat(struct mdt_device *mdt)
        for (i = 0; i < RENAME_LAST; i++)
                spin_lock_init(&mdt->mdt_rename_stats.hist[i].oh_lock);
 
-       return lprocfs_obd_seq_create(obd, "rename_stats", 0444,
+       return lprocfs_obd_seq_create(obd, "rename_stats", 0644,
                                      &mdt_rename_stats_fops, mdt);
 }
 
@@ -243,19 +236,6 @@ int mdt_procfs_init(struct mdt_device *mdt, const char *name)
         }
         ptlrpc_lprocfs_register_obd(obd);
 
-        mdt->mdt_proc_entry = obd->obd_proc_entry;
-        LASSERT(mdt->mdt_proc_entry != NULL);
-
-        rc = lu_time_init(&mdt->mdt_stats, mdt->mdt_proc_entry,
-                          mdt_proc_names, ARRAY_SIZE(mdt_proc_names));
-        if (rc == 0)
-                rc = lu_time_named_init(&ld->ld_site->ls_time_stats,
-                                        "site_time", mdt->mdt_proc_entry,
-                                         lu_time_names,
-                                         ARRAY_SIZE(lu_time_names));
-        if (rc)
-                return rc;
-
         obd->obd_proc_exports_entry = proc_mkdir("exports",
                                                  obd->obd_proc_entry);
         if (obd->obd_proc_exports_entry)
@@ -292,27 +272,12 @@ int mdt_procfs_fini(struct mdt_device *mdt)
         lprocfs_free_per_client_stats(obd);
         lprocfs_obd_cleanup(obd);
         ptlrpc_lprocfs_unregister_obd(obd);
-        if (mdt->mdt_proc_entry) {
-                lu_time_fini(&ld->ld_site->ls_time_stats);
-                lu_time_fini(&mdt->mdt_stats);
-                mdt->mdt_proc_entry = NULL;
-        }
         lprocfs_free_md_stats(obd);
         lprocfs_free_obd_stats(obd);
 
         RETURN(0);
 }
 
-void mdt_time_start(const struct mdt_thread_info *info)
-{
-        lu_lprocfs_time_start(info->mti_env);
-}
-
-void mdt_time_end(const struct mdt_thread_info *info, int idx)
-{
-        lu_lprocfs_time_end(info->mti_env, info->mti_mdt->mdt_stats, idx);
-}
-
 static int lprocfs_rd_identity_expire(char *page, char **start, off_t off,
                                       int count, int *eof, void *data)
 {
@@ -983,6 +948,34 @@ out:
         return count;
 }
 
+static int lprocfs_rd_enable_remote_dir(char *page, char **start, off_t off,
+                                       int count, int *eof, void *data)
+{
+       struct obd_device *obd = data;
+       struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
+
+       return snprintf(page, count, "%u\n", mdt->mdt_enable_remote_dir);
+}
+
+static int lprocfs_wr_enable_remote_dir(struct file *file, const char *buffer,
+                                       unsigned long count, void *data)
+{
+       struct obd_device *obd = data;
+       struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
+       __u32 val;
+       int rc;
+
+       rc = lprocfs_write_helper(buffer, count, &val);
+       if (rc)
+               return rc;
+
+       if (val < 0 || val > 1)
+               return -ERANGE;
+
+       mdt->mdt_enable_remote_dir = val;
+       return count;
+}
+
 static struct lprocfs_vars lprocfs_mdt_obd_vars[] = {
         { "uuid",                       lprocfs_rd_uuid,                 0, 0 },
         { "recovery_status",            lprocfs_obd_rd_recovery_status,  0, 0 },
@@ -1020,6 +1013,8 @@ static struct lprocfs_vars lprocfs_mdt_obd_vars[] = {
                                         lprocfs_obd_wr_ir_factor,           0 },
        { "job_cleanup_interval",       lprocfs_rd_job_interval,
                                        lprocfs_wr_job_interval, 0 },
+       { "enable_remote_dir",          lprocfs_rd_enable_remote_dir,
+                                       lprocfs_wr_enable_remote_dir,       0},
         { 0 }
 };
 
@@ -1030,10 +1025,20 @@ static struct lprocfs_vars lprocfs_mdt_module_vars[] = {
 
 void lprocfs_mdt_init_vars(struct lprocfs_static_vars *lvars)
 {
-    lvars->module_vars  = lprocfs_mdt_module_vars;
-    lvars->obd_vars     = lprocfs_mdt_obd_vars;
+       lvars->module_vars  = lprocfs_mdt_module_vars;
+       lvars->obd_vars     = lprocfs_mdt_obd_vars;
 }
 
+struct lprocfs_vars lprocfs_mds_obd_vars[] = {
+       { "uuid",        lprocfs_rd_uuid,       0, 0 },
+       { 0 }
+};
+
+struct lprocfs_vars lprocfs_mds_module_vars[] = {
+       { "num_refs",     lprocfs_rd_numrefs,     0, 0 },
+       { 0 }
+};
+
 void mdt_counter_incr(struct ptlrpc_request *req, int opcode)
 {
        struct obd_export *exp = req->rq_export;