LU-7377 utils: Don't fail on plugin load for mount/tunefs

While loading mount_utils_zfs, if zfs modules aren't loaded, but
zfs plugin is present, it will return an error, this shouldn't cause
all module loading to fail.

Signed-off-by: Nathaniel Clark <nathaniel.l.clark@intel.com>
Change-Id: Idad52745cdfa9d673ab9bd4afe38de4d51ae9a49
Reviewed-on: http://review.whamcloud.com/17128
Tested-by: Jenkins
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>

diff --git a/lustre/utils/mount_utils.c b/lustre/utils/mount_utils.c
index 2ec3489..b19aeef 100644 (file)
--- a/lustre/utils/mount_utils.c
+++ b/lustre/utils/mount_utils.c
@@ -573,7 +573,7 @@ int backfs_mount_type_okay(enum ldd_mount_type mount_type)
        }
        if (backfs_ops[mount_type] == NULL) {
                fatal();
-               fprintf(stderr, "unhandled fs type %d '%s'\n",
+               fprintf(stderr, "unhandled/unloaded fs type %d '%s'\n",
                        mount_type, mt_str(mount_type));
                return 0;
        }
@@ -706,14 +706,19 @@ int osd_enable_quota(struct mkfs_opts *mop)
 
 int osd_init(void)
 {
-       int i, ret = 0;
+       int i, rc, ret = EINVAL;
 
        for (i = 0; i < LDD_MT_LAST; ++i) {
+               rc = 0;
                backfs_ops[i] = load_backfs_module(i);
                if (backfs_ops[i] != NULL)
-                       ret = backfs_ops[i]->init();
-               if (ret)
-                       break;
+                       rc = backfs_ops[i]->init();
+               if (rc != 0) {
+                       backfs_ops[i]->fini();
+                       unload_backfs_module(backfs_ops[i]);
+                       backfs_ops[i] = NULL;
+               } else
+                       ret = 0;
        }
 
        return ret;