dlm: handle release_option as unsigned

Future patches will introduce a invalid argument check for undefined
values. All values for release_option are positive integer values to not
check on negative values as well we just change the parameter to
unsigned int.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>

fs/dlm/lockspace.c

@@ -676,7 +676,7 @@ int dlm_new_user_lockspace(const char *name, const char *cluster,
    This is because there may be LKBs queued as ASTs that have been unlinked
    from their RSBs and are pending deletion once the AST has been delivered */
 
-static int lockspace_busy(struct dlm_ls *ls, int release_option)
+static int lockspace_busy(struct dlm_ls *ls, unsigned int release_option)
 {
 	struct dlm_lkb *lkb;
 	unsigned long id;
@@ -704,7 +704,7 @@ static int lockspace_busy(struct dlm_ls *ls, int release_option)
 	return rv;
 }
 
-static int release_lockspace(struct dlm_ls *ls, int release_option)
+static int release_lockspace(struct dlm_ls *ls, unsigned int release_option)
 {
 	int busy, rv;
 
@@ -792,7 +792,7 @@ static int release_lockspace(struct dlm_ls *ls, int release_option)
  * See DLM_RELEASE defines for release_option values and their meaning.
  */
 
-int dlm_release_lockspace(void *lockspace, int force)
+int dlm_release_lockspace(void *lockspace, unsigned int release_option)
 {
 	struct dlm_ls *ls;
 	int error;
@@ -803,7 +803,7 @@ int dlm_release_lockspace(void *lockspace, int force)
 	dlm_put_lockspace(ls);
 
 	mutex_lock(&ls_lock);
-	error = release_lockspace(ls, force);
+	error = release_lockspace(ls, release_option);
 	if (!error)
 		ls_count--;
 	if (!ls_count)

include/linux/dlm.h

@@ -122,7 +122,8 @@ int dlm_new_lockspace(const char *name, const char *cluster,
  * release_option: see DLM_RELEASE values above.
  */
 
-int dlm_release_lockspace(dlm_lockspace_t *lockspace, int release_option);
+int dlm_release_lockspace(dlm_lockspace_t *lockspace,
+			  unsigned int release_option);
 
 /*
  * dlm_lock