LU-2396 ofd: Remove unmaintained brw_stats

[fs/lustre-release.git] / lustre / ofd / ofd_dev.c

diff --git a/lustre/ofd/ofd_dev.c b/lustre/ofd/ofd_dev.c
index f90d820..7243c12 100644 (file)
--- a/lustre/ofd/ofd_dev.c
+++ b/lustre/ofd/ofd_dev.c
@@ -427,12 +427,6 @@ static int ofd_procfs_init(struct ofd_device *ofd)
        lprocfs_counter_init(obd->obd_stats, LPROC_OFD_WRITE_BYTES,
                             LPROCFS_CNTR_AVGMINMAX, "write_bytes", "bytes");
 
-       rc = lproc_ofd_attach_seqstat(obd);
-       if (rc) {
-               CERROR("%s: create seqstat failed: %d.\n", obd->obd_name, rc);
-               GOTO(obd_cleanup, rc);
-       }
-
        entry = lprocfs_register("exports", obd->obd_proc_entry, NULL, NULL);
        if (IS_ERR(entry)) {
                rc = PTR_ERR(entry);
@@ -466,10 +460,30 @@ obd_cleanup:
        return rc;
 }
 
+static void ofd_procfs_add_brw_stats_symlink(struct ofd_device *ofd)
+{
+       struct obd_device       *obd = ofd_obd(ofd);
+       struct obd_device       *osd_obd = ofd->ofd_osd_exp->exp_obd;
+       cfs_proc_dir_entry_t    *osd_root = osd_obd->obd_type->typ_procroot;
+       cfs_proc_dir_entry_t    *osd_dir;
+
+       osd_dir = lprocfs_srch(osd_root, obd->obd_name);
+       if (osd_dir == NULL)
+               return;
+
+       if (lprocfs_srch(osd_dir, "brw_stats") == NULL)
+               return;
+
+       lprocfs_add_symlink("brw_stats", obd->obd_proc_entry,
+                           "../../%s/%s/brw_stats",
+                           osd_root->name, osd_dir->name);
+}
+
 static void ofd_procfs_fini(struct ofd_device *ofd)
 {
        struct obd_device *obd = ofd_obd(ofd);
 
+       lprocfs_remove_proc_entry("brw_stats", obd->obd_proc_entry);
        lprocfs_remove_proc_entry("clear", obd->obd_proc_exports_entry);
        lprocfs_free_per_client_stats(obd);
        lprocfs_obd_cleanup(obd);
@@ -646,6 +660,8 @@ static int ofd_init0(const struct lu_env *env, struct ofd_device *m,
                GOTO(err_fini_proc, rc);
        }
 
+       ofd_procfs_add_brw_stats_symlink(m);
+
        /* populate cached statfs data */
        osfs = &ofd_info(env)->fti_u.osfs;
        rc = ofd_statfs_internal(env, m, osfs, 0, NULL);