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authorAlex Elder <elder@inktank.com>2013-02-15 22:10:17 -0600
committerSage Weil <sage@inktank.com>2013-05-01 21:14:25 -0700
commit47a05811b656915789bdd4c7e8cc18007e09c56d (patch)
tree37a38954651d1ffa23a7a3ca99d525f0f5a6b46f
parent07c09b725543ff2958c11522d583f90f7fdba735 (diff)
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>
-rw-r--r--net/ceph/osd_client.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index cf4e15bfe0db..f4bdb6a69588 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -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