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Commit 47a05811 authored by Alex Elder's avatar Alex Elder Committed by Sage Weil
Browse files

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: default avatarAlex Elder <elder@inktank.com>
Reviewed-by: default avatarJosh Durgin <josh.durgin@inktank.com>
parent 07c09b72

net/ceph/osd_client.c

+7 −6
Original line number Diff line number Diff line
@@ -67,16 +67,15 @@ static int calc_layout(struct ceph_vino vino, 
		       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 @@ static int calc_layout(struct ceph_vino vino, 
		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_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, 
	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 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, 
	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