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authorIlya Dryomov <idryomov@gmail.com>2017-06-15 16:30:53 +0200
committerIlya Dryomov <idryomov@gmail.com>2017-07-07 17:25:15 +0200
commit2e59ffd1df4aba5289f04d362efc8432fac14949 (patch)
tree3e57945e889db711abcfe6395fa6b6f87d806831 /net/ceph/osd_client.c
parentdc98ff7230e5ccf11c621dff0d590e83574a7184 (diff)
libceph: encode_{pgid,oloc}() helpers
Factor out encode_{pgid,oloc}() and use ceph_encode_string() for oid. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'net/ceph/osd_client.c')
-rw-r--r--net/ceph/osd_client.c50
1 files changed, 27 insertions, 23 deletions
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 66509414f4c8..b0298c3681b6 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -540,7 +540,7 @@ struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc,
}
EXPORT_SYMBOL(ceph_osdc_alloc_request);
-static int ceph_oloc_encoding_size(struct ceph_object_locator *oloc)
+static int ceph_oloc_encoding_size(const struct ceph_object_locator *oloc)
{
return 8 + 4 + 4 + 4 + (oloc->pool_ns ? oloc->pool_ns->len : 0);
}
@@ -1485,6 +1485,28 @@ static void setup_request_data(struct ceph_osd_request *req,
WARN_ON(data_len != msg->data_length);
}
+static void encode_pgid(void **p, const struct ceph_pg *pgid)
+{
+ ceph_encode_8(p, 1);
+ ceph_encode_64(p, pgid->pool);
+ ceph_encode_32(p, pgid->seed);
+ ceph_encode_32(p, -1); /* preferred */
+}
+
+static void encode_oloc(void **p, void *end,
+ const struct ceph_object_locator *oloc)
+{
+ ceph_start_encoding(p, 5, 4, ceph_oloc_encoding_size(oloc));
+ ceph_encode_64(p, oloc->pool);
+ ceph_encode_32(p, -1); /* preferred */
+ ceph_encode_32(p, 0); /* key len */
+ if (oloc->pool_ns)
+ ceph_encode_string(p, end, oloc->pool_ns->str,
+ oloc->pool_ns->len);
+ else
+ ceph_encode_32(p, 0);
+}
+
static void encode_request(struct ceph_osd_request *req, struct ceph_msg *msg)
{
void *p = msg->front.iov_base;
@@ -1512,28 +1534,10 @@ static void encode_request(struct ceph_osd_request *req, struct ceph_msg *msg)
memset(p, 0, sizeof(struct ceph_eversion));
p += sizeof(struct ceph_eversion);
- /* oloc */
- ceph_start_encoding(&p, 5, 4,
- ceph_oloc_encoding_size(&req->r_t.target_oloc));
- ceph_encode_64(&p, req->r_t.target_oloc.pool);
- ceph_encode_32(&p, -1); /* preferred */
- ceph_encode_32(&p, 0); /* key len */
- if (req->r_t.target_oloc.pool_ns)
- ceph_encode_string(&p, end, req->r_t.target_oloc.pool_ns->str,
- req->r_t.target_oloc.pool_ns->len);
- else
- ceph_encode_32(&p, 0);
-
- /* pgid */
- ceph_encode_8(&p, 1);
- ceph_encode_64(&p, req->r_t.pgid.pool);
- ceph_encode_32(&p, req->r_t.pgid.seed);
- ceph_encode_32(&p, -1); /* preferred */
-
- /* oid */
- ceph_encode_32(&p, req->r_t.target_oid.name_len);
- memcpy(p, req->r_t.target_oid.name, req->r_t.target_oid.name_len);
- p += req->r_t.target_oid.name_len;
+ encode_oloc(&p, end, &req->r_t.target_oloc);
+ encode_pgid(&p, &req->r_t.pgid);
+ ceph_encode_string(&p, end, req->r_t.target_oid.name,
+ req->r_t.target_oid.name_len);
/* ops, can imply data */
ceph_encode_16(&p, req->r_num_ops);