fs: dlm: allow create lkb with specific id range

This patch adds functionality to add a lkb with a specific id range.

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

diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index feb2e94..8b30c9d 100644 (file)
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -1180,7 +1180,8 @@ static void detach_lkb(struct dlm_lkb *lkb)
        }
 }
 
-static int create_lkb(struct dlm_ls *ls, struct dlm_lkb **lkb_ret)
+static int _create_lkb(struct dlm_ls *ls, struct dlm_lkb **lkb_ret,
+                      int start, int end)
 {
        struct dlm_lkb *lkb;
        int rv;
@@ -1201,7 +1202,7 @@ static int create_lkb(struct dlm_ls *ls, struct dlm_lkb **lkb_ret)
 
        idr_preload(GFP_NOFS);
        spin_lock(&ls->ls_lkbidr_spin);
-       rv = idr_alloc(&ls->ls_lkbidr, lkb, 1, 0, GFP_NOWAIT);
+       rv = idr_alloc(&ls->ls_lkbidr, lkb, start, end, GFP_NOWAIT);
        if (rv >= 0)
                lkb->lkb_id = rv;
        spin_unlock(&ls->ls_lkbidr_spin);
@@ -1217,6 +1218,11 @@ static int create_lkb(struct dlm_ls *ls, struct dlm_lkb **lkb_ret)
        return 0;
 }
 
+static int create_lkb(struct dlm_ls *ls, struct dlm_lkb **lkb_ret)
+{
+       return _create_lkb(ls, lkb_ret, 1, 0);
+}
+
 static int find_lkb(struct dlm_ls *ls, uint32_t lkid, struct dlm_lkb **lkb_ret)
 {
        struct dlm_lkb *lkb;