diff options
| -rw-r--r-- | drivers/block/rbd.c | 117 | ||||
| -rw-r--r-- | include/linux/ceph/osd_client.h | 26 | ||||
| -rw-r--r-- | net/ceph/osd_client.c | 84 |
3 files changed, 111 insertions, 116 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 6ed508bd363..f04d45b6b56 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -1134,76 +1134,6 @@ static bool obj_request_type_valid(enum obj_request_type type) } } -static struct ceph_osd_req_op *rbd_osd_req_op_create(u16 opcode, ...) -{ - struct ceph_osd_req_op *op; - va_list args; - size_t size; - - op = kzalloc(sizeof (*op), GFP_NOIO); - if (!op) - return NULL; - op->op = opcode; - va_start(args, opcode); - switch (opcode) { - case CEPH_OSD_OP_READ: - case CEPH_OSD_OP_WRITE: - /* rbd_osd_req_op_create(READ, offset, length) */ - /* rbd_osd_req_op_create(WRITE, offset, length) */ - op->extent.offset = va_arg(args, u64); - op->extent.length = va_arg(args, u64); - if (opcode == CEPH_OSD_OP_WRITE) - op->payload_len = op->extent.length; - break; - case CEPH_OSD_OP_STAT: - break; - case CEPH_OSD_OP_CALL: - /* rbd_osd_req_op_create(CALL, class, method, data, datalen) */ - op->cls.class_name = va_arg(args, char *); - size = strlen(op->cls.class_name); - rbd_assert(size <= (size_t) U8_MAX); - op->cls.class_len = size; - op->payload_len = size; - - op->cls.method_name = va_arg(args, char *); - size = strlen(op->cls.method_name); - rbd_assert(size <= (size_t) U8_MAX); - op->cls.method_len = size; - op->payload_len += size; - - op->cls.argc = 0; - op->cls.indata = va_arg(args, void *); - size = va_arg(args, size_t); - rbd_assert(size <= (size_t) U32_MAX); - op->cls.indata_len = (u32) size; - op->payload_len += size; - break; - case CEPH_OSD_OP_NOTIFY_ACK: - case CEPH_OSD_OP_WATCH: - /* rbd_osd_req_op_create(NOTIFY_ACK, cookie, version) */ - /* rbd_osd_req_op_create(WATCH, cookie, version, flag) */ - op->watch.cookie = va_arg(args, u64); - op->watch.ver = va_arg(args, u64); - op->watch.ver = cpu_to_le64(op->watch.ver); - if (opcode == CEPH_OSD_OP_WATCH && va_arg(args, int)) - op->watch.flag = (u8) 1; - break; - default: - rbd_warn(NULL, "unsupported opcode %hu\n", opcode); - kfree(op); - op = NULL; - break; - } - va_end(args); - - return op; -} - -static void rbd_osd_req_op_destroy(struct ceph_osd_req_op *op) -{ - kfree(op); -} - static int rbd_obj_request_submit(struct ceph_osd_client *osdc, struct rbd_obj_request *obj_request) { @@ -1628,7 +1558,7 @@ static int rbd_img_request_fill_bio(struct rbd_img_request *img_request, while (resid) { const char *object_name; unsigned int clone_size; - struct ceph_osd_req_op *op; + struct ceph_osd_req_op op; u64 offset; u64 length; @@ -1657,13 +1587,10 @@ static int rbd_img_request_fill_bio(struct rbd_img_request *img_request, * request. Note that the contents of the op are * copied by rbd_osd_req_create(). */ - op = rbd_osd_req_op_create(opcode, offset, length); - if (!op) - goto out_partial; + osd_req_op_extent_init(&op, opcode, offset, length, 0, 0); obj_request->osd_req = rbd_osd_req_create(rbd_dev, img_request->write_request, - obj_request, op); - rbd_osd_req_op_destroy(op); + obj_request, &op); if (!obj_request->osd_req) goto out_partial; /* status and version are initially zero-filled */ @@ -1766,7 +1693,7 @@ static int rbd_obj_notify_ack(struct rbd_device *rbd_dev, u64 ver, u64 notify_id) { struct rbd_obj_request *obj_request; - struct ceph_osd_req_op *op; + struct ceph_osd_req_op op; struct ceph_osd_client *osdc; int ret; @@ -1776,12 +1703,9 @@ static int rbd_obj_notify_ack(struct rbd_device *rbd_dev, return -ENOMEM; ret = -ENOMEM; - op = rbd_osd_req_op_create(CEPH_OSD_OP_NOTIFY_ACK, notify_id, ver); - if (!op) - goto out; + osd_req_op_watch_init(&op, CEPH_OSD_OP_NOTIFY_ACK, notify_id, ver, 0); obj_request->osd_req = rbd_osd_req_create(rbd_dev, false, - obj_request, op); - rbd_osd_req_op_destroy(op); + obj_request, &op); if (!obj_request->osd_req) goto out; @@ -1823,7 +1747,7 @@ static int rbd_dev_header_watch_sync(struct rbd_device *rbd_dev, int start) { struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc; struct rbd_obj_request *obj_request; - struct ceph_osd_req_op *op; + struct ceph_osd_req_op op; int ret; rbd_assert(start ^ !!rbd_dev->watch_event); @@ -1843,14 +1767,11 @@ static int rbd_dev_header_watch_sync(struct rbd_device *rbd_dev, int start) if (!obj_request) goto out_cancel; - op = rbd_osd_req_op_create(CEPH_OSD_OP_WATCH, + osd_req_op_watch_init(&op, CEPH_OSD_OP_WATCH, rbd_dev->watch_event->cookie, rbd_dev->header.obj_version, start); - if (!op) - goto out_cancel; obj_request->osd_req = rbd_osd_req_create(rbd_dev, true, - obj_request, op); - rbd_osd_req_op_destroy(op); + obj_request, &op); if (!obj_request->osd_req) goto out_cancel; @@ -1912,7 +1833,7 @@ static int rbd_obj_method_sync(struct rbd_device *rbd_dev, { struct rbd_obj_request *obj_request; struct ceph_osd_client *osdc; - struct ceph_osd_req_op *op; + struct ceph_osd_req_op op; struct page **pages; u32 page_count; int ret; @@ -1939,13 +1860,10 @@ static int rbd_obj_method_sync(struct rbd_device *rbd_dev, obj_request->pages = pages; obj_request->page_count = page_count; - op = rbd_osd_req_op_create(CEPH_OSD_OP_CALL, class_name, - method_name, outbound, outbound_size); - if (!op) - goto out; + osd_req_op_cls_init(&op, CEPH_OSD_OP_CALL, class_name, method_name, + outbound, outbound_size); obj_request->osd_req = rbd_osd_req_create(rbd_dev, false, - obj_request, op); - rbd_osd_req_op_destroy(op); + obj_request, &op); if (!obj_request->osd_req) goto out; @@ -2125,7 +2043,7 @@ static int rbd_obj_read_sync(struct rbd_device *rbd_dev, char *buf, u64 *version) { - struct ceph_osd_req_op *op; + struct ceph_osd_req_op op; struct rbd_obj_request *obj_request; struct ceph_osd_client *osdc; struct page **pages = NULL; @@ -2147,12 +2065,9 @@ static int rbd_obj_read_sync(struct rbd_device *rbd_dev, obj_request->pages = pages; obj_request->page_count = page_count; - op = rbd_osd_req_op_create(CEPH_OSD_OP_READ, offset, length); - if (!op) - goto out; + osd_req_op_extent_init(&op, CEPH_OSD_OP_READ, offset, length, 0, 0); obj_request->osd_req = rbd_osd_req_create(rbd_dev, false, - obj_request, op); - rbd_osd_req_op_destroy(op); + obj_request, &op); if (!obj_request->osd_req) goto out; diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h index 1dab291b2dc..5fd2cbfcfd9 100644 --- a/include/linux/ceph/osd_client.h +++ b/include/linux/ceph/osd_client.h @@ -202,14 +202,6 @@ struct ceph_osd_req_op { u32 truncate_seq; } extent; struct { - const char *name; - const void *val; - u32 name_len; - u32 value_len; - __u8 cmp_op; /* CEPH_OSD_CMPXATTR_OP_* */ - __u8 cmp_mode; /* CEPH_OSD_CMPXATTR_MODE_* */ - } xattr; - struct { const char *class_name; const char *method_name; const void *indata; @@ -220,13 +212,6 @@ struct ceph_osd_req_op { } cls; struct { u64 cookie; - u64 count; - } pgls; - struct { - u64 snapid; - } snap; - struct { - u64 cookie; u64 ver; u32 prot_ver; u32 timeout; @@ -244,6 +229,17 @@ extern void ceph_osdc_handle_reply(struct ceph_osd_client *osdc, extern void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg); +extern void osd_req_op_init(struct ceph_osd_req_op *op, u16 opcode); +extern void osd_req_op_extent_init(struct ceph_osd_req_op *op, u16 opcode, + u64 offset, u64 length, + u64 truncate_size, u32 truncate_seq); +extern void osd_req_op_cls_init(struct ceph_osd_req_op *op, u16 opcode, + const char *class, const char *method, + const void *request_data, + size_t request_data_size); +extern void osd_req_op_watch_init(struct ceph_osd_req_op *op, u16 opcode, + u64 cookie, u64 version, int flag); + extern struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc, struct ceph_snap_context *snapc, unsigned int num_op, diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index 4e5c0438ea3..02ed7282047 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -289,6 +289,90 @@ static bool osd_req_opcode_valid(u16 opcode) } } +/* + * This is an osd op init function for opcodes that have no data or + * other information associated with them. It also serves as a + * common init routine for all the other init functions, below. + */ +void osd_req_op_init(struct ceph_osd_req_op *op, u16 opcode) +{ + BUG_ON(!osd_req_opcode_valid(opcode)); + + memset(op, 0, sizeof (*op)); + + op->op = opcode; +} + +void osd_req_op_extent_init(struct ceph_osd_req_op *op, u16 opcode, + u64 offset, u64 length, + u64 truncate_size, u32 truncate_seq) +{ + size_t payload_len = 0; + + BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE); + + osd_req_op_init(op, opcode); + + op->extent.offset = offset; + op->extent.length = length; + op->extent.truncate_size = truncate_size; + op->extent.truncate_seq = truncate_seq; + if (opcode == CEPH_OSD_OP_WRITE) + payload_len += length; + + op->payload_len = payload_len; +} +EXPORT_SYMBOL(osd_req_op_extent_init); + +void osd_req_op_cls_init(struct ceph_osd_req_op *op, u16 opcode, + const char *class, const char *method, + const void *request_data, size_t request_data_size) +{ + size_t payload_len = 0; + size_t size; + + BUG_ON(opcode != CEPH_OSD_OP_CALL); + + osd_req_op_init(op, opcode); + + op->cls.class_name = class; + size = strlen(class); + BUG_ON(size > (size_t) U8_MAX); + op->cls.class_len = size; + payload_len += size; + + op->cls.method_name = method; + size = strlen(method); + BUG_ON(size > (size_t) U8_MAX); + op->cls.method_len = size; + payload_len += size; + + op->cls.indata = request_data; + BUG_ON(request_data_size > (size_t) U32_MAX); + op->cls.indata_len = (u32) request_data_size; + payload_len += request_data_size; + + op->cls.argc = 0; /* currently unused */ + + op->payload_len = payload_len; +} +EXPORT_SYMBOL(osd_req_op_cls_init); + +void osd_req_op_watch_init(struct ceph_osd_req_op *op, u16 opcode, + u64 cookie, u64 version, int flag) +{ + BUG_ON(opcode != CEPH_OSD_OP_NOTIFY_ACK && opcode != CEPH_OSD_OP_WATCH); + + osd_req_op_init(op, opcode); + + op->watch.cookie = cookie; + /* op->watch.ver = version; */ /* XXX 3847 */ + op->watch.ver = cpu_to_le64(version); + if (opcode == CEPH_OSD_OP_WATCH && flag) + op->watch.flag = (u8) 1; +} +EXPORT_SYMBOL(osd_req_op_watch_init); + static u64 osd_req_encode_op(struct ceph_osd_request *req, struct ceph_osd_op *dst, struct ceph_osd_req_op *src) |