[Cluster-devel] [PATCH dlm/next 5/8] fs: dlm: allow create lkb with specific id range

[Alexander Aring <aahringo@redhat.com>]

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

Signed-off-by: Alexander Aring <aahringo@redhat.com>
---
 fs/dlm/lock.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index c502c065d007..5f3c2c6bca8c 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -1178,7 +1178,8 @@ 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;
@@ -1199,7 +1200,7 @@ 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);
@@ -1215,6 +1216,11 @@ 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;
-- 
2.27.0