LU-8471 obdclass: restore EXPORT_SYMBOL for lu_ref* functions

LU-5829 removed a lot of EXPORT_SYMBOL, including for the lu_ref_*
functions. As these functions are only compiled in when the
--enable-lu_ref is passed to configure, the breakage was missed. This
patch restores the missing EXPORT_SYMBOLS that were present, except
for lu_ref_print and lu_ref_is_marker which are only used in the
obdclass module.

Test-Parameters: trivial
Signed-off-by: Frank Zago <fzago@cray.com>
Change-Id: I16e6065b75c568a18386c0f0a746484fdad38d6e
Reviewed-on: http://review.whamcloud.com/21640
Reviewed-by: Andrew Perepechko <andrew.perepechko@seagate.com>
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>

diff --git a/lustre/obdclass/lu_ref.c b/lustre/obdclass/lu_ref.c
index 4ebb29b..aee9cf8 100644 (file)
--- a/lustre/obdclass/lu_ref.c
+++ b/lustre/obdclass/lu_ref.c
@@ -135,6 +135,7 @@ void lu_ref_init_loc(struct lu_ref *ref, const char *func, const int line)
        list_add(&ref->lf_linkage, &lu_ref_refs);
        spin_unlock(&lu_ref_refs_guard);
 }
+EXPORT_SYMBOL(lu_ref_init_loc);
 
 void lu_ref_fini(struct lu_ref *ref)
 {
@@ -146,6 +147,7 @@ void lu_ref_fini(struct lu_ref *ref)
        list_del_init(&ref->lf_linkage);
        spin_unlock(&lu_ref_refs_guard);
 }
+EXPORT_SYMBOL(lu_ref_fini);
 
 static struct lu_ref_link *lu_ref_add_context(struct lu_ref *ref,
                                               int flags,
@@ -183,6 +185,7 @@ void lu_ref_add(struct lu_ref *ref, const char *scope, const void *source)
        might_sleep();
        lu_ref_add_context(ref, GFP_IOFS, scope, source);
 }
+EXPORT_SYMBOL(lu_ref_add);
 
 void lu_ref_add_at(struct lu_ref *ref, struct lu_ref_link *link,
                   const char *scope, const void *source)
@@ -195,6 +198,7 @@ void lu_ref_add_at(struct lu_ref *ref, struct lu_ref_link *link,
        ref->lf_refs++;
        spin_unlock(&ref->lf_guard);
 }
+EXPORT_SYMBOL(lu_ref_add_at);
 
 /**
  * Version of lu_ref_add() to be used in non-blockable contexts.
@@ -204,6 +208,7 @@ void lu_ref_add_atomic(struct lu_ref *ref, const char *scope,
 {
        lu_ref_add_context(ref, GFP_ATOMIC, scope, source);
 }
+EXPORT_SYMBOL(lu_ref_add_atomic);
 
 static inline int lu_ref_link_eq(const struct lu_ref_link *link,
                                  const char *scope, const void *source)
@@ -257,6 +262,7 @@ void lu_ref_del(struct lu_ref *ref, const char *scope, const void *source)
                spin_unlock(&ref->lf_guard);
        }
 }
+EXPORT_SYMBOL(lu_ref_del);
 
 void lu_ref_set_at(struct lu_ref *ref, struct lu_ref_link *link,
                   const char *scope,
@@ -269,6 +275,7 @@ void lu_ref_set_at(struct lu_ref *ref, struct lu_ref_link *link,
        link->ll_source = source1;
        spin_unlock(&ref->lf_guard);
 }
+EXPORT_SYMBOL(lu_ref_set_at);
 
 void lu_ref_del_at(struct lu_ref *ref, struct lu_ref_link *link,
                   const char *scope, const void *source)
@@ -281,6 +288,7 @@ void lu_ref_del_at(struct lu_ref *ref, struct lu_ref_link *link,
        ref->lf_refs--;
        spin_unlock(&ref->lf_guard);
 }
+EXPORT_SYMBOL(lu_ref_del_at);
 
 #ifdef CONFIG_PROC_FS