mirror of https://gitee.com/openkylin/linux.git
libceph: MOSDOp v8 encoding (actual spgid + full hash)
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Ilya Dryomov
parent
98ad5ebd15
commit
8cb441c054
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@ -205,6 +205,23 @@ struct ceph_request_redirect {
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struct ceph_object_locator oloc;
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};
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/*
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* osd request identifier
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*
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* caller name + incarnation# + tid to unique identify this request
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*/
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struct ceph_osd_reqid {
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struct ceph_entity_name name;
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__le64 tid;
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__le32 inc;
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} __packed;
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struct ceph_blkin_trace_info {
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__le64 trace_id;
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__le64 span_id;
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__le64 parent_span_id;
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} __packed;
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typedef void (*rados_watchcb2_t)(void *arg, u64 notify_id, u64 cookie,
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u64 notifier_id, void *data, size_t data_len);
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typedef void (*rados_watcherrcb_t)(void *arg, u64 cookie, int err);
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@ -205,11 +205,13 @@ static inline struct ceph_entity_addr *ceph_osd_addr(struct ceph_osdmap *map,
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return &map->osd_addr[osd];
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}
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#define CEPH_PGID_ENCODING_LEN (1 + 8 + 4 + 4)
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static inline int ceph_decode_pgid(void **p, void *end, struct ceph_pg *pgid)
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{
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__u8 version;
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if (!ceph_has_room(p, end, 1 + 8 + 4 + 4)) {
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if (!ceph_has_room(p, end, CEPH_PGID_ENCODING_LEN)) {
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pr_warn("incomplete pg encoding\n");
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return -EINVAL;
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}
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@ -12,6 +12,7 @@
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#include <linux/bio.h>
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#endif
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#include <linux/ceph/ceph_features.h>
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#include <linux/ceph/libceph.h>
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#include <linux/ceph/osd_client.h>
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#include <linux/ceph/messenger.h>
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@ -555,17 +556,21 @@ int ceph_osdc_alloc_messages(struct ceph_osd_request *req, gfp_t gfp)
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WARN_ON(ceph_oloc_empty(&req->r_base_oloc));
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/* create request message */
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msg_size = 4 + 4 + 4; /* client_inc, osdmap_epoch, flags */
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msg_size += 4 + 4 + 4 + 8; /* mtime, reassert_version */
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msg_size = CEPH_ENCODING_START_BLK_LEN +
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CEPH_PGID_ENCODING_LEN + 1; /* spgid */
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msg_size += 4 + 4 + 4; /* hash, osdmap_epoch, flags */
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msg_size += CEPH_ENCODING_START_BLK_LEN +
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sizeof(struct ceph_osd_reqid); /* reqid */
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msg_size += sizeof(struct ceph_blkin_trace_info); /* trace */
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msg_size += 4 + sizeof(struct ceph_timespec); /* client_inc, mtime */
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msg_size += CEPH_ENCODING_START_BLK_LEN +
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ceph_oloc_encoding_size(&req->r_base_oloc); /* oloc */
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msg_size += 1 + 8 + 4 + 4; /* pgid */
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msg_size += 4 + req->r_base_oid.name_len; /* oid */
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msg_size += 2 + req->r_num_ops * sizeof(struct ceph_osd_op);
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msg_size += 8; /* snapid */
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msg_size += 8; /* snap_seq */
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msg_size += 4 + 8 * (req->r_snapc ? req->r_snapc->num_snaps : 0);
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msg_size += 4; /* retry_attempt */
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msg_size += 4 + 8; /* retry_attempt, features */
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if (req->r_mempool)
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msg = ceph_msgpool_get(&osdc->msgpool_op, 0);
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@ -1493,6 +1498,13 @@ static void encode_pgid(void **p, const struct ceph_pg *pgid)
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ceph_encode_32(p, -1); /* preferred */
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}
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static void encode_spgid(void **p, const struct ceph_spg *spgid)
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{
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ceph_start_encoding(p, 1, 1, CEPH_PGID_ENCODING_LEN + 1);
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encode_pgid(p, &spgid->pgid);
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ceph_encode_8(p, spgid->shard);
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}
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static void encode_oloc(void **p, void *end,
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const struct ceph_object_locator *oloc)
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{
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@ -1507,7 +1519,8 @@ static void encode_oloc(void **p, void *end,
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ceph_encode_32(p, 0);
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}
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static void encode_request(struct ceph_osd_request *req, struct ceph_msg *msg)
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static void encode_request_partial(struct ceph_osd_request *req,
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struct ceph_msg *msg)
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{
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void *p = msg->front.iov_base;
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void *const end = p + msg->front_alloc_len;
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@ -1524,18 +1537,25 @@ static void encode_request(struct ceph_osd_request *req, struct ceph_msg *msg)
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setup_request_data(req, msg);
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ceph_encode_32(&p, 1); /* client_inc, always 1 */
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encode_spgid(&p, &req->r_t.spgid); /* actual spg */
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ceph_encode_32(&p, req->r_t.pgid.seed); /* raw hash */
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ceph_encode_32(&p, req->r_osdc->osdmap->epoch);
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ceph_encode_32(&p, req->r_flags);
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/* reqid */
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ceph_start_encoding(&p, 2, 2, sizeof(struct ceph_osd_reqid));
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memset(p, 0, sizeof(struct ceph_osd_reqid));
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p += sizeof(struct ceph_osd_reqid);
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/* trace */
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memset(p, 0, sizeof(struct ceph_blkin_trace_info));
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p += sizeof(struct ceph_blkin_trace_info);
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ceph_encode_32(&p, 0); /* client_inc, always 0 */
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ceph_encode_timespec(p, &req->r_mtime);
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p += sizeof(struct ceph_timespec);
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/* reassert_version */
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memset(p, 0, sizeof(struct ceph_eversion));
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p += sizeof(struct ceph_eversion);
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encode_oloc(&p, end, &req->r_t.target_oloc);
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encode_pgid(&p, &req->r_t.pgid);
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ceph_encode_string(&p, end, req->r_t.target_oid.name,
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req->r_t.target_oid.name_len);
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@ -1558,11 +1578,10 @@ static void encode_request(struct ceph_osd_request *req, struct ceph_msg *msg)
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}
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ceph_encode_32(&p, req->r_attempts); /* retry_attempt */
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BUG_ON(p != end - 8); /* space for features */
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BUG_ON(p > end);
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msg->front.iov_len = p - msg->front.iov_base;
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msg->hdr.version = cpu_to_le16(4); /* MOSDOp v4 */
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msg->hdr.front_len = cpu_to_le32(msg->front.iov_len);
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msg->hdr.version = cpu_to_le16(8); /* MOSDOp v8 */
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/* front_len is finalized in encode_request_finish() */
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msg->hdr.data_len = cpu_to_le32(data_len);
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/*
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* The header "data_off" is a hint to the receiver allowing it
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@ -1571,9 +1590,99 @@ static void encode_request(struct ceph_osd_request *req, struct ceph_msg *msg)
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*/
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msg->hdr.data_off = cpu_to_le16(req->r_data_offset);
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dout("%s req %p oid %s oid_len %d front %zu data %u\n", __func__,
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req, req->r_t.target_oid.name, req->r_t.target_oid.name_len,
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msg->front.iov_len, data_len);
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dout("%s req %p msg %p oid %s oid_len %d\n", __func__, req, msg,
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req->r_t.target_oid.name, req->r_t.target_oid.name_len);
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}
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static void encode_request_finish(struct ceph_msg *msg)
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{
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void *p = msg->front.iov_base;
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void *const end = p + msg->front_alloc_len;
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if (CEPH_HAVE_FEATURE(msg->con->peer_features, RESEND_ON_SPLIT)) {
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/* luminous OSD -- encode features and be done */
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p = end - 8;
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ceph_encode_64(&p, msg->con->peer_features);
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} else {
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struct {
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char spgid[CEPH_ENCODING_START_BLK_LEN +
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CEPH_PGID_ENCODING_LEN + 1];
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__le32 hash;
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__le32 epoch;
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__le32 flags;
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char reqid[CEPH_ENCODING_START_BLK_LEN +
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sizeof(struct ceph_osd_reqid)];
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char trace[sizeof(struct ceph_blkin_trace_info)];
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__le32 client_inc;
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struct ceph_timespec mtime;
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} __packed head;
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struct ceph_pg pgid;
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void *oloc, *oid, *tail;
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int oloc_len, oid_len, tail_len;
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int len;
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/*
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* Pre-luminous OSD -- reencode v8 into v4 using @head
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* as a temporary buffer. Encode the raw PG; the rest
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* is just a matter of moving oloc, oid and tail blobs
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* around.
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*/
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memcpy(&head, p, sizeof(head));
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p += sizeof(head);
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oloc = p;
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p += CEPH_ENCODING_START_BLK_LEN;
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pgid.pool = ceph_decode_64(&p);
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p += 4 + 4; /* preferred, key len */
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len = ceph_decode_32(&p);
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p += len; /* nspace */
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oloc_len = p - oloc;
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oid = p;
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len = ceph_decode_32(&p);
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p += len;
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oid_len = p - oid;
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tail = p;
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tail_len = (end - p) - 8;
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p = msg->front.iov_base;
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ceph_encode_copy(&p, &head.client_inc, sizeof(head.client_inc));
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ceph_encode_copy(&p, &head.epoch, sizeof(head.epoch));
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ceph_encode_copy(&p, &head.flags, sizeof(head.flags));
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ceph_encode_copy(&p, &head.mtime, sizeof(head.mtime));
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/* reassert_version */
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memset(p, 0, sizeof(struct ceph_eversion));
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p += sizeof(struct ceph_eversion);
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BUG_ON(p >= oloc);
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memmove(p, oloc, oloc_len);
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p += oloc_len;
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pgid.seed = le32_to_cpu(head.hash);
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encode_pgid(&p, &pgid); /* raw pg */
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BUG_ON(p >= oid);
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memmove(p, oid, oid_len);
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p += oid_len;
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/* tail -- ops, snapid, snapc, retry_attempt */
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BUG_ON(p >= tail);
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memmove(p, tail, tail_len);
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p += tail_len;
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msg->hdr.version = cpu_to_le16(4); /* MOSDOp v4 */
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}
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BUG_ON(p > end);
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msg->front.iov_len = p - msg->front.iov_base;
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msg->hdr.front_len = cpu_to_le32(msg->front.iov_len);
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dout("%s msg %p tid %llu %u+%u+%u v%d\n", __func__, msg,
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le64_to_cpu(msg->hdr.tid), le32_to_cpu(msg->hdr.front_len),
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le32_to_cpu(msg->hdr.middle_len), le32_to_cpu(msg->hdr.data_len),
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le16_to_cpu(msg->hdr.version));
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}
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/*
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@ -1599,7 +1708,7 @@ static void send_request(struct ceph_osd_request *req)
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else
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WARN_ON(req->r_flags & CEPH_OSD_FLAG_RETRY);
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encode_request(req, req->r_request);
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encode_request_partial(req, req->r_request);
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dout("%s req %p tid %llu to pgid %llu.%x spgid %llu.%xs%d osd%d flags 0x%x attempt %d\n",
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__func__, req, req->r_tid, req->r_t.pgid.pool, req->r_t.pgid.seed,
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@ -4577,6 +4686,11 @@ static int invalidate_authorizer(struct ceph_connection *con)
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return ceph_monc_validate_auth(&osdc->client->monc);
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}
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static void osd_reencode_message(struct ceph_msg *msg)
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{
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encode_request_finish(msg);
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}
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static int osd_sign_message(struct ceph_msg *msg)
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{
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struct ceph_osd *o = msg->con->private;
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@ -4601,6 +4715,7 @@ static const struct ceph_connection_operations osd_con_ops = {
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.verify_authorizer_reply = verify_authorizer_reply,
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.invalidate_authorizer = invalidate_authorizer,
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.alloc_msg = alloc_msg,
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.reencode_message = osd_reencode_message,
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.sign_message = osd_sign_message,
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.check_message_signature = osd_check_message_signature,
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.fault = osd_fault,
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