libceph: pass object number back to calc_layout() caller
Have calc_layout() pass the computed object number back to its
caller. (This is a small step to simplify review.)
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index cf4e15b..f4bdb6a 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -67,16 +67,15 @@
struct ceph_file_layout *layout,
u64 off, u64 *plen,
struct ceph_osd_request *req,
- struct ceph_osd_req_op *op)
+ struct ceph_osd_req_op *op, u64 *bno)
{
u64 orig_len = *plen;
- u64 bno = 0;
u64 objoff = 0;
u64 objlen = 0;
int r;
/* object extent? */
- r = ceph_calc_file_object_mapping(layout, off, orig_len, &bno,
+ r = ceph_calc_file_object_mapping(layout, off, orig_len, bno,
&objoff, &objlen);
if (r < 0)
return r;
@@ -104,9 +103,9 @@
op->payload_len = *plen;
dout("calc_layout bno=%llx %llu~%llu (%d pages)\n",
- bno, objoff, objlen, req->r_num_pages);
+ *bno, objoff, objlen, req->r_num_pages);
- snprintf(req->r_oid, sizeof(req->r_oid), "%llx.%08llx", vino.ino, bno);
+ snprintf(req->r_oid, sizeof(req->r_oid), "%llx.%08llx", vino.ino, *bno);
req->r_oid_len = strlen(req->r_oid);
return 0;
@@ -449,6 +448,7 @@
struct ceph_osd_req_op ops[2];
struct ceph_osd_request *req;
unsigned int num_op = 1;
+ u64 bno = 0;
int r;
memset(&ops, 0, sizeof ops);
@@ -469,11 +469,12 @@
req->r_flags = flags;
/* calculate max write size */
- r = calc_layout(vino, layout, off, plen, req, ops);
+ r = calc_layout(vino, layout, off, plen, req, ops, &bno);
if (r < 0) {
ceph_osdc_put_request(req);
return ERR_PTR(r);
}
+
req->r_file_layout = *layout; /* keep a copy */
/* in case it differs from natural (file) alignment that