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-rw-r--r--net/ceph/osd_client.c1087
1 files changed, 734 insertions, 353 deletions
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index d730dd4d8eb2..a3395fdfbd4f 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -1,3 +1,4 @@
+
#include <linux/ceph/ceph_debug.h>
#include <linux/module.h>
@@ -21,6 +22,8 @@
#define OSD_OP_FRONT_LEN 4096
#define OSD_OPREPLY_FRONT_LEN 512
+static struct kmem_cache *ceph_osd_request_cache;
+
static const struct ceph_connection_operations osd_con_ops;
static void __send_queued(struct ceph_osd_client *osdc);
@@ -32,12 +35,6 @@ static void __unregister_linger_request(struct ceph_osd_client *osdc,
static void __send_request(struct ceph_osd_client *osdc,
struct ceph_osd_request *req);
-static int op_has_extent(int op)
-{
- return (op == CEPH_OSD_OP_READ ||
- op == CEPH_OSD_OP_WRITE);
-}
-
/*
* Implement client access to distributed object storage cluster.
*
@@ -63,53 +60,238 @@ static int op_has_extent(int op)
*
* fill osd op in request message.
*/
-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)
+static int calc_layout(struct ceph_file_layout *layout, u64 off, u64 *plen,
+ u64 *objnum, u64 *objoff, u64 *objlen)
{
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,
- &objoff, &objlen);
+ r = ceph_calc_file_object_mapping(layout, off, orig_len, objnum,
+ objoff, objlen);
if (r < 0)
return r;
- if (objlen < orig_len) {
- *plen = objlen;
+ if (*objlen < orig_len) {
+ *plen = *objlen;
dout(" skipping last %llu, final file extent %llu~%llu\n",
orig_len - *plen, off, *plen);
}
- if (op_has_extent(op->op)) {
- u32 osize = le32_to_cpu(layout->fl_object_size);
- op->extent.offset = objoff;
- op->extent.length = objlen;
- if (op->extent.truncate_size <= off - objoff) {
- op->extent.truncate_size = 0;
- } else {
- op->extent.truncate_size -= off - objoff;
- if (op->extent.truncate_size > osize)
- op->extent.truncate_size = osize;
- }
+ dout("calc_layout objnum=%llx %llu~%llu\n", *objnum, *objoff, *objlen);
+
+ return 0;
+}
+
+static void ceph_osd_data_init(struct ceph_osd_data *osd_data)
+{
+ memset(osd_data, 0, sizeof (*osd_data));
+ osd_data->type = CEPH_OSD_DATA_TYPE_NONE;
+}
+
+static void ceph_osd_data_pages_init(struct ceph_osd_data *osd_data,
+ struct page **pages, u64 length, u32 alignment,
+ bool pages_from_pool, bool own_pages)
+{
+ osd_data->type = CEPH_OSD_DATA_TYPE_PAGES;
+ osd_data->pages = pages;
+ osd_data->length = length;
+ osd_data->alignment = alignment;
+ osd_data->pages_from_pool = pages_from_pool;
+ osd_data->own_pages = own_pages;
+}
+
+static void ceph_osd_data_pagelist_init(struct ceph_osd_data *osd_data,
+ struct ceph_pagelist *pagelist)
+{
+ osd_data->type = CEPH_OSD_DATA_TYPE_PAGELIST;
+ osd_data->pagelist = pagelist;
+}
+
+#ifdef CONFIG_BLOCK
+static void ceph_osd_data_bio_init(struct ceph_osd_data *osd_data,
+ struct bio *bio, size_t bio_length)
+{
+ osd_data->type = CEPH_OSD_DATA_TYPE_BIO;
+ osd_data->bio = bio;
+ osd_data->bio_length = bio_length;
+}
+#endif /* CONFIG_BLOCK */
+
+#define osd_req_op_data(oreq, whch, typ, fld) \
+ ({ \
+ BUG_ON(whch >= (oreq)->r_num_ops); \
+ &(oreq)->r_ops[whch].typ.fld; \
+ })
+
+static struct ceph_osd_data *
+osd_req_op_raw_data_in(struct ceph_osd_request *osd_req, unsigned int which)
+{
+ BUG_ON(which >= osd_req->r_num_ops);
+
+ return &osd_req->r_ops[which].raw_data_in;
+}
+
+struct ceph_osd_data *
+osd_req_op_extent_osd_data(struct ceph_osd_request *osd_req,
+ unsigned int which)
+{
+ return osd_req_op_data(osd_req, which, extent, osd_data);
+}
+EXPORT_SYMBOL(osd_req_op_extent_osd_data);
+
+struct ceph_osd_data *
+osd_req_op_cls_response_data(struct ceph_osd_request *osd_req,
+ unsigned int which)
+{
+ return osd_req_op_data(osd_req, which, cls, response_data);
+}
+EXPORT_SYMBOL(osd_req_op_cls_response_data); /* ??? */
+
+void osd_req_op_raw_data_in_pages(struct ceph_osd_request *osd_req,
+ unsigned int which, struct page **pages,
+ u64 length, u32 alignment,
+ bool pages_from_pool, bool own_pages)
+{
+ struct ceph_osd_data *osd_data;
+
+ osd_data = osd_req_op_raw_data_in(osd_req, which);
+ ceph_osd_data_pages_init(osd_data, pages, length, alignment,
+ pages_from_pool, own_pages);
+}
+EXPORT_SYMBOL(osd_req_op_raw_data_in_pages);
+
+void osd_req_op_extent_osd_data_pages(struct ceph_osd_request *osd_req,
+ unsigned int which, struct page **pages,
+ u64 length, u32 alignment,
+ bool pages_from_pool, bool own_pages)
+{
+ struct ceph_osd_data *osd_data;
+
+ osd_data = osd_req_op_data(osd_req, which, extent, osd_data);
+ ceph_osd_data_pages_init(osd_data, pages, length, alignment,
+ pages_from_pool, own_pages);
+}
+EXPORT_SYMBOL(osd_req_op_extent_osd_data_pages);
+
+void osd_req_op_extent_osd_data_pagelist(struct ceph_osd_request *osd_req,
+ unsigned int which, struct ceph_pagelist *pagelist)
+{
+ struct ceph_osd_data *osd_data;
+
+ osd_data = osd_req_op_data(osd_req, which, extent, osd_data);
+ ceph_osd_data_pagelist_init(osd_data, pagelist);
+}
+EXPORT_SYMBOL(osd_req_op_extent_osd_data_pagelist);
+
+#ifdef CONFIG_BLOCK
+void osd_req_op_extent_osd_data_bio(struct ceph_osd_request *osd_req,
+ unsigned int which, struct bio *bio, size_t bio_length)
+{
+ struct ceph_osd_data *osd_data;
+
+ osd_data = osd_req_op_data(osd_req, which, extent, osd_data);
+ ceph_osd_data_bio_init(osd_data, bio, bio_length);
+}
+EXPORT_SYMBOL(osd_req_op_extent_osd_data_bio);
+#endif /* CONFIG_BLOCK */
+
+static void osd_req_op_cls_request_info_pagelist(
+ struct ceph_osd_request *osd_req,
+ unsigned int which, struct ceph_pagelist *pagelist)
+{
+ struct ceph_osd_data *osd_data;
+
+ osd_data = osd_req_op_data(osd_req, which, cls, request_info);
+ ceph_osd_data_pagelist_init(osd_data, pagelist);
+}
+
+void osd_req_op_cls_request_data_pagelist(
+ struct ceph_osd_request *osd_req,
+ unsigned int which, struct ceph_pagelist *pagelist)
+{
+ struct ceph_osd_data *osd_data;
+
+ osd_data = osd_req_op_data(osd_req, which, cls, request_data);
+ ceph_osd_data_pagelist_init(osd_data, pagelist);
+}
+EXPORT_SYMBOL(osd_req_op_cls_request_data_pagelist);
+
+void osd_req_op_cls_request_data_pages(struct ceph_osd_request *osd_req,
+ unsigned int which, struct page **pages, u64 length,
+ u32 alignment, bool pages_from_pool, bool own_pages)
+{
+ struct ceph_osd_data *osd_data;
+
+ osd_data = osd_req_op_data(osd_req, which, cls, request_data);
+ ceph_osd_data_pages_init(osd_data, pages, length, alignment,
+ pages_from_pool, own_pages);
+}
+EXPORT_SYMBOL(osd_req_op_cls_request_data_pages);
+
+void osd_req_op_cls_response_data_pages(struct ceph_osd_request *osd_req,
+ unsigned int which, struct page **pages, u64 length,
+ u32 alignment, bool pages_from_pool, bool own_pages)
+{
+ struct ceph_osd_data *osd_data;
+
+ osd_data = osd_req_op_data(osd_req, which, cls, response_data);
+ ceph_osd_data_pages_init(osd_data, pages, length, alignment,
+ pages_from_pool, own_pages);
+}
+EXPORT_SYMBOL(osd_req_op_cls_response_data_pages);
+
+static u64 ceph_osd_data_length(struct ceph_osd_data *osd_data)
+{
+ switch (osd_data->type) {
+ case CEPH_OSD_DATA_TYPE_NONE:
+ return 0;
+ case CEPH_OSD_DATA_TYPE_PAGES:
+ return osd_data->length;
+ case CEPH_OSD_DATA_TYPE_PAGELIST:
+ return (u64)osd_data->pagelist->length;
+#ifdef CONFIG_BLOCK
+ case CEPH_OSD_DATA_TYPE_BIO:
+ return (u64)osd_data->bio_length;
+#endif /* CONFIG_BLOCK */
+ default:
+ WARN(true, "unrecognized data type %d\n", (int)osd_data->type);
+ return 0;
}
- req->r_num_pages = calc_pages_for(off, *plen);
- req->r_page_alignment = off & ~PAGE_MASK;
- if (op->op == CEPH_OSD_OP_WRITE)
- op->payload_len = *plen;
+}
- dout("calc_layout bno=%llx %llu~%llu (%d pages)\n",
- bno, objoff, objlen, req->r_num_pages);
+static void ceph_osd_data_release(struct ceph_osd_data *osd_data)
+{
+ if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES && osd_data->own_pages) {
+ int num_pages;
- snprintf(req->r_oid, sizeof(req->r_oid), "%llx.%08llx", vino.ino, bno);
- req->r_oid_len = strlen(req->r_oid);
+ num_pages = calc_pages_for((u64)osd_data->alignment,
+ (u64)osd_data->length);
+ ceph_release_page_vector(osd_data->pages, num_pages);
+ }
+ ceph_osd_data_init(osd_data);
+}
+
+static void osd_req_op_data_release(struct ceph_osd_request *osd_req,
+ unsigned int which)
+{
+ struct ceph_osd_req_op *op;
+
+ BUG_ON(which >= osd_req->r_num_ops);
+ op = &osd_req->r_ops[which];
- return r;
+ switch (op->op) {
+ case CEPH_OSD_OP_READ:
+ case CEPH_OSD_OP_WRITE:
+ ceph_osd_data_release(&op->extent.osd_data);
+ break;
+ case CEPH_OSD_OP_CALL:
+ ceph_osd_data_release(&op->cls.request_info);
+ ceph_osd_data_release(&op->cls.request_data);
+ ceph_osd_data_release(&op->cls.response_data);
+ break;
+ default:
+ break;
+ }
}
/*
@@ -117,30 +299,26 @@ static int calc_layout(struct ceph_vino vino,
*/
void ceph_osdc_release_request(struct kref *kref)
{
- struct ceph_osd_request *req = container_of(kref,
- struct ceph_osd_request,
- r_kref);
+ struct ceph_osd_request *req;
+ unsigned int which;
+ req = container_of(kref, struct ceph_osd_request, r_kref);
if (req->r_request)
ceph_msg_put(req->r_request);
- if (req->r_con_filling_msg) {
- dout("%s revoking msg %p from con %p\n", __func__,
- req->r_reply, req->r_con_filling_msg);
+ if (req->r_reply) {
ceph_msg_revoke_incoming(req->r_reply);
- req->r_con_filling_msg->ops->put(req->r_con_filling_msg);
- req->r_con_filling_msg = NULL;
- }
- if (req->r_reply)
ceph_msg_put(req->r_reply);
- if (req->r_own_pages)
- ceph_release_page_vector(req->r_pages,
- req->r_num_pages);
+ }
+
+ for (which = 0; which < req->r_num_ops; which++)
+ osd_req_op_data_release(req, which);
+
ceph_put_snap_context(req->r_snapc);
- ceph_pagelist_release(&req->r_trail);
if (req->r_mempool)
mempool_free(req, req->r_osdc->req_mempool);
else
- kfree(req);
+ kmem_cache_free(ceph_osd_request_cache, req);
+
}
EXPORT_SYMBOL(ceph_osdc_release_request);
@@ -154,6 +332,9 @@ struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc,
struct ceph_msg *msg;
size_t msg_size;
+ BUILD_BUG_ON(CEPH_OSD_MAX_OP > U16_MAX);
+ BUG_ON(num_ops > CEPH_OSD_MAX_OP);
+
msg_size = 4 + 4 + 8 + 8 + 4+8;
msg_size += 2 + 4 + 8 + 4 + 4; /* oloc */
msg_size += 1 + 8 + 4 + 4; /* pg_t */
@@ -168,13 +349,14 @@ struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc,
req = mempool_alloc(osdc->req_mempool, gfp_flags);
memset(req, 0, sizeof(*req));
} else {
- req = kzalloc(sizeof(*req), gfp_flags);
+ req = kmem_cache_zalloc(ceph_osd_request_cache, gfp_flags);
}
if (req == NULL)
return NULL;
req->r_osdc = osdc;
req->r_mempool = use_mempool;
+ req->r_num_ops = num_ops;
kref_init(&req->r_kref);
init_completion(&req->r_completion);
@@ -198,8 +380,6 @@ struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc,
}
req->r_reply = msg;
- ceph_pagelist_init(&req->r_trail);
-
/* create request message; allow space for oid */
if (use_mempool)
msg = ceph_msgpool_get(&osdc->msgpool_op, 0);
@@ -218,60 +398,24 @@ struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc,
}
EXPORT_SYMBOL(ceph_osdc_alloc_request);
-static void osd_req_encode_op(struct ceph_osd_request *req,
- struct ceph_osd_op *dst,
- struct ceph_osd_req_op *src)
+static bool osd_req_opcode_valid(u16 opcode)
{
- dst->op = cpu_to_le16(src->op);
-
- switch (src->op) {
- case CEPH_OSD_OP_STAT:
- break;
+ switch (opcode) {
case CEPH_OSD_OP_READ:
- case CEPH_OSD_OP_WRITE:
- dst->extent.offset =
- cpu_to_le64(src->extent.offset);
- dst->extent.length =
- cpu_to_le64(src->extent.length);
- dst->extent.truncate_size =
- cpu_to_le64(src->extent.truncate_size);
- dst->extent.truncate_seq =
- cpu_to_le32(src->extent.truncate_seq);
- break;
- case CEPH_OSD_OP_CALL:
- dst->cls.class_len = src->cls.class_len;
- dst->cls.method_len = src->cls.method_len;
- dst->cls.indata_len = cpu_to_le32(src->cls.indata_len);
-
- ceph_pagelist_append(&req->r_trail, src->cls.class_name,
- src->cls.class_len);
- ceph_pagelist_append(&req->r_trail, src->cls.method_name,
- src->cls.method_len);
- ceph_pagelist_append(&req->r_trail, src->cls.indata,
- src->cls.indata_len);
- break;
- case CEPH_OSD_OP_STARTSYNC:
- break;
- case CEPH_OSD_OP_NOTIFY_ACK:
- case CEPH_OSD_OP_WATCH:
- dst->watch.cookie = cpu_to_le64(src->watch.cookie);
- dst->watch.ver = cpu_to_le64(src->watch.ver);
- dst->watch.flag = src->watch.flag;
- break;
- default:
- pr_err("unrecognized osd opcode %d\n", dst->op);
- WARN_ON(1);
- break;
+ case CEPH_OSD_OP_STAT:
case CEPH_OSD_OP_MAPEXT:
case CEPH_OSD_OP_MASKTRUNC:
case CEPH_OSD_OP_SPARSE_READ:
case CEPH_OSD_OP_NOTIFY:
+ case CEPH_OSD_OP_NOTIFY_ACK:
case CEPH_OSD_OP_ASSERT_VER:
+ case CEPH_OSD_OP_WRITE:
case CEPH_OSD_OP_WRITEFULL:
case CEPH_OSD_OP_TRUNCATE:
case CEPH_OSD_OP_ZERO:
case CEPH_OSD_OP_DELETE:
case CEPH_OSD_OP_APPEND:
+ case CEPH_OSD_OP_STARTSYNC:
case CEPH_OSD_OP_SETTRUNC:
case CEPH_OSD_OP_TRIMTRUNC:
case CEPH_OSD_OP_TMAPUP:
@@ -279,11 +423,11 @@ static void osd_req_encode_op(struct ceph_osd_request *req,
case CEPH_OSD_OP_TMAPGET:
case CEPH_OSD_OP_CREATE:
case CEPH_OSD_OP_ROLLBACK:
+ case CEPH_OSD_OP_WATCH:
case CEPH_OSD_OP_OMAPGETKEYS:
case CEPH_OSD_OP_OMAPGETVALS:
case CEPH_OSD_OP_OMAPGETHEADER:
case CEPH_OSD_OP_OMAPGETVALSBYKEYS:
- case CEPH_OSD_OP_MODE_RD:
case CEPH_OSD_OP_OMAPSETVALS:
case CEPH_OSD_OP_OMAPSETHEADER:
case CEPH_OSD_OP_OMAPCLEAR:
@@ -314,113 +458,233 @@ static void osd_req_encode_op(struct ceph_osd_request *req,
case CEPH_OSD_OP_RDUNLOCK:
case CEPH_OSD_OP_UPLOCK:
case CEPH_OSD_OP_DNLOCK:
+ case CEPH_OSD_OP_CALL:
case CEPH_OSD_OP_PGLS:
case CEPH_OSD_OP_PGLS_FILTER:
- pr_err("unsupported osd opcode %s\n",
- ceph_osd_op_name(dst->op));
- WARN_ON(1);
- break;
+ return true;
+ default:
+ return false;
}
- dst->payload_len = cpu_to_le32(src->payload_len);
}
/*
- * build new request AND message
- *
+ * 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 ceph_osdc_build_request(struct ceph_osd_request *req,
- u64 off, u64 len, unsigned int num_ops,
- struct ceph_osd_req_op *src_ops,
- struct ceph_snap_context *snapc, u64 snap_id,
- struct timespec *mtime)
+static struct ceph_osd_req_op *
+_osd_req_op_init(struct ceph_osd_request *osd_req, unsigned int which,
+ u16 opcode)
{
- struct ceph_msg *msg = req->r_request;
- struct ceph_osd_req_op *src_op;
- void *p;
- size_t msg_size;
- int flags = req->r_flags;
- u64 data_len;
- int i;
+ struct ceph_osd_req_op *op;
- req->r_num_ops = num_ops;
- req->r_snapid = snap_id;
- req->r_snapc = ceph_get_snap_context(snapc);
+ BUG_ON(which >= osd_req->r_num_ops);
+ BUG_ON(!osd_req_opcode_valid(opcode));
- /* encode request */
- msg->hdr.version = cpu_to_le16(4);
+ op = &osd_req->r_ops[which];
+ memset(op, 0, sizeof (*op));
+ op->op = opcode;
- p = msg->front.iov_base;
- ceph_encode_32(&p, 1); /* client_inc is always 1 */
- req->r_request_osdmap_epoch = p;
- p += 4;
- req->r_request_flags = p;
- p += 4;
- if (req->r_flags & CEPH_OSD_FLAG_WRITE)
- ceph_encode_timespec(p, mtime);
- p += sizeof(struct ceph_timespec);
- req->r_request_reassert_version = p;
- p += sizeof(struct ceph_eversion); /* will get filled in */
+ return op;
+}
- /* oloc */
- ceph_encode_8(&p, 4);
- ceph_encode_8(&p, 4);
- ceph_encode_32(&p, 8 + 4 + 4);
- req->r_request_pool = p;
- p += 8;
- ceph_encode_32(&p, -1); /* preferred */
- ceph_encode_32(&p, 0); /* key len */
+void osd_req_op_init(struct ceph_osd_request *osd_req,
+ unsigned int which, u16 opcode)
+{
+ (void)_osd_req_op_init(osd_req, which, opcode);
+}
+EXPORT_SYMBOL(osd_req_op_init);
- ceph_encode_8(&p, 1);
- req->r_request_pgid = p;
- p += 8 + 4;
- ceph_encode_32(&p, -1); /* preferred */
+void osd_req_op_extent_init(struct ceph_osd_request *osd_req,
+ unsigned int which, u16 opcode,
+ u64 offset, u64 length,
+ u64 truncate_size, u32 truncate_seq)
+{
+ struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, opcode);
+ size_t payload_len = 0;
- /* oid */
- ceph_encode_32(&p, req->r_oid_len);
- memcpy(p, req->r_oid, req->r_oid_len);
- dout("oid '%.*s' len %d\n", req->r_oid_len, req->r_oid, req->r_oid_len);
- p += req->r_oid_len;
+ BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE);
- /* ops */
- ceph_encode_16(&p, num_ops);
- src_op = src_ops;
- req->r_request_ops = p;
- for (i = 0; i < num_ops; i++, src_op++) {
- osd_req_encode_op(req, p, src_op);
- p += sizeof(struct ceph_osd_op);
- }
+ 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;
- /* snaps */
- ceph_encode_64(&p, req->r_snapid);
- ceph_encode_64(&p, req->r_snapc ? req->r_snapc->seq : 0);
- ceph_encode_32(&p, req->r_snapc ? req->r_snapc->num_snaps : 0);
- if (req->r_snapc) {
- for (i = 0; i < snapc->num_snaps; i++) {
- ceph_encode_64(&p, req->r_snapc->snaps[i]);
- }
+ op->payload_len = payload_len;
+}
+EXPORT_SYMBOL(osd_req_op_extent_init);
+
+void osd_req_op_extent_update(struct ceph_osd_request *osd_req,
+ unsigned int which, u64 length)
+{
+ struct ceph_osd_req_op *op;
+ u64 previous;
+
+ BUG_ON(which >= osd_req->r_num_ops);
+ op = &osd_req->r_ops[which];
+ previous = op->extent.length;
+
+ if (length == previous)
+ return; /* Nothing to do */
+ BUG_ON(length > previous);
+
+ op->extent.length = length;
+ op->payload_len -= previous - length;
+}
+EXPORT_SYMBOL(osd_req_op_extent_update);
+
+void osd_req_op_cls_init(struct ceph_osd_request *osd_req, unsigned int which,
+ u16 opcode, const char *class, const char *method)
+{
+ struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, opcode);
+ struct ceph_pagelist *pagelist;
+ size_t payload_len = 0;
+ size_t size;
+
+ BUG_ON(opcode != CEPH_OSD_OP_CALL);
+
+ pagelist = kmalloc(sizeof (*pagelist), GFP_NOFS);
+ BUG_ON(!pagelist);
+ ceph_pagelist_init(pagelist);
+
+ op->cls.class_name = class;
+ size = strlen(class);
+ BUG_ON(size > (size_t) U8_MAX);
+ op->cls.class_len = size;
+ ceph_pagelist_append(pagelist, class, size);
+ payload_len += size;
+
+ op->cls.method_name = method;
+ size = strlen(method);
+ BUG_ON(size > (size_t) U8_MAX);
+ op->cls.method_len = size;
+ ceph_pagelist_append(pagelist, method, size);
+ payload_len += size;
+
+ osd_req_op_cls_request_info_pagelist(osd_req, which, pagelist);
+
+ 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_request *osd_req,
+ unsigned int which, u16 opcode,
+ u64 cookie, u64 version, int flag)
+{
+ struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, opcode);
+
+ BUG_ON(opcode != CEPH_OSD_OP_NOTIFY_ACK && opcode != CEPH_OSD_OP_WATCH);
+
+ op->watch.cookie = cookie;
+ op->watch.ver = version;
+ if (opcode == CEPH_OSD_OP_WATCH && flag)
+ op->watch.flag = (u8)1;
+}
+EXPORT_SYMBOL(osd_req_op_watch_init);
+
+static void ceph_osdc_msg_data_add(struct ceph_msg *msg,
+ struct ceph_osd_data *osd_data)
+{
+ u64 length = ceph_osd_data_length(osd_data);
+
+ if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) {
+ BUG_ON(length > (u64) SIZE_MAX);
+ if (length)
+ ceph_msg_data_add_pages(msg, osd_data->pages,
+ length, osd_data->alignment);
+ } else if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGELIST) {
+ BUG_ON(!length);
+ ceph_msg_data_add_pagelist(msg, osd_data->pagelist);
+#ifdef CONFIG_BLOCK
+ } else if (osd_data->type == CEPH_OSD_DATA_TYPE_BIO) {
+ ceph_msg_data_add_bio(msg, osd_data->bio, length);
+#endif
+ } else {
+ BUG_ON(osd_data->type != CEPH_OSD_DATA_TYPE_NONE);
}
+}
- req->r_request_attempts = p;
- p += 4;
+static u64 osd_req_encode_op(struct ceph_osd_request *req,
+ struct ceph_osd_op *dst, unsigned int which)
+{
+ struct ceph_osd_req_op *src;
+ struct ceph_osd_data *osd_data;
+ u64 request_data_len = 0;
+ u64 data_length;
- data_len = req->r_trail.length;
- if (flags & CEPH_OSD_FLAG_WRITE) {
- req->r_request->hdr.data_off = cpu_to_le16(off);
- data_len += len;
+ BUG_ON(which >= req->r_num_ops);
+ src = &req->r_ops[which];
+ if (WARN_ON(!osd_req_opcode_valid(src->op))) {
+ pr_err("unrecognized osd opcode %d\n", src->op);
+
+ return 0;
}
- req->r_request->hdr.data_len = cpu_to_le32(data_len);
- req->r_request->page_alignment = req->r_page_alignment;
- BUG_ON(p > msg->front.iov_base + msg->front.iov_len);
- msg_size = p - msg->front.iov_base;
- msg->front.iov_len = msg_size;
- msg->hdr.front_len = cpu_to_le32(msg_size);
+ switch (src->op) {
+ case CEPH_OSD_OP_STAT:
+ osd_data = &src->raw_data_in;
+ ceph_osdc_msg_data_add(req->r_reply, osd_data);
+ break;
+ case CEPH_OSD_OP_READ:
+ case CEPH_OSD_OP_WRITE:
+ if (src->op == CEPH_OSD_OP_WRITE)
+ request_data_len = src->extent.length;
+ dst->extent.offset = cpu_to_le64(src->extent.offset);
+ dst->extent.length = cpu_to_le64(src->extent.length);
+ dst->extent.truncate_size =
+ cpu_to_le64(src->extent.truncate_size);
+ dst->extent.truncate_seq =
+ cpu_to_le32(src->extent.truncate_seq);
+ osd_data = &src->extent.osd_data;
+ if (src->op == CEPH_OSD_OP_WRITE)
+ ceph_osdc_msg_data_add(req->r_request, osd_data);
+ else
+ ceph_osdc_msg_data_add(req->r_reply, osd_data);
+ break;
+ case CEPH_OSD_OP_CALL:
+ dst->cls.class_len = src->cls.class_len;
+ dst->cls.method_len = src->cls.method_len;
+ osd_data = &src->cls.request_info;
+ ceph_osdc_msg_data_add(req->r_request, osd_data);
+ BUG_ON(osd_data->type != CEPH_OSD_DATA_TYPE_PAGELIST);
+ request_data_len = osd_data->pagelist->length;
+
+ osd_data = &src->cls.request_data;
+ data_length = ceph_osd_data_length(osd_data);
+ if (data_length) {
+ BUG_ON(osd_data->type == CEPH_OSD_DATA_TYPE_NONE);
+ dst->cls.indata_len = cpu_to_le32(data_length);
+ ceph_osdc_msg_data_add(req->r_request, osd_data);
+ src->payload_len += data_length;
+ request_data_len += data_length;
+ }
+ osd_data = &src->cls.response_data;
+ ceph_osdc_msg_data_add(req->r_reply, osd_data);
+ break;
+ case CEPH_OSD_OP_STARTSYNC:
+ break;
+ case CEPH_OSD_OP_NOTIFY_ACK:
+ case CEPH_OSD_OP_WATCH:
+ dst->watch.cookie = cpu_to_le64(src->watch.cookie);
+ dst->watch.ver = cpu_to_le64(src->watch.ver);
+ dst->watch.flag = src->watch.flag;
+ break;
+ default:
+ pr_err("unsupported osd opcode %s\n",
+ ceph_osd_op_name(src->op));
+ WARN_ON(1);
- dout("build_request msg_size was %d num_ops %d\n", (int)msg_size,
- num_ops);
- return;
+ return 0;
+ }
+ dst->op = cpu_to_le16(src->op);
+ dst->payload_len = cpu_to_le32(src->payload_len);
+
+ return request_data_len;
}
-EXPORT_SYMBOL(ceph_osdc_build_request);
/*
* build new request AND message, calculate layout, and adjust file
@@ -436,51 +700,63 @@ EXPORT_SYMBOL(ceph_osdc_build_request);
struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc,
struct ceph_file_layout *layout,
struct ceph_vino vino,
- u64 off, u64 *plen,
+ u64 off, u64 *plen, int num_ops,
int opcode, int flags,
struct ceph_snap_context *snapc,
- int do_sync,
u32 truncate_seq,
u64 truncate_size,
- struct timespec *mtime,
- bool use_mempool,
- int page_align)
+ bool use_mempool)
{
- struct ceph_osd_req_op ops[2];
struct ceph_osd_request *req;
- unsigned int num_op = 1;
+ u64 objnum = 0;
+ u64 objoff = 0;
+ u64 objlen = 0;
+ u32 object_size;
+ u64 object_base;
int r;
- memset(&ops, 0, sizeof ops);
-
- ops[0].op = opcode;
- ops[0].extent.truncate_seq = truncate_seq;
- ops[0].extent.truncate_size = truncate_size;
-
- if (do_sync) {
- ops[1].op = CEPH_OSD_OP_STARTSYNC;
- num_op++;
- }
+ BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE);
- req = ceph_osdc_alloc_request(osdc, snapc, num_op, use_mempool,
+ req = ceph_osdc_alloc_request(osdc, snapc, num_ops, use_mempool,
GFP_NOFS);
if (!req)
return ERR_PTR(-ENOMEM);
+
req->r_flags = flags;
/* calculate max write size */
- r = calc_layout(vino, layout, off, plen, req, ops);
- if (r < 0)
+ r = calc_layout(layout, off, plen, &objnum, &objoff, &objlen);
+ 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
- calc_layout filled in for us */
- req->r_num_pages = calc_pages_for(page_align, *plen);
- req->r_page_alignment = page_align;
+ object_size = le32_to_cpu(layout->fl_object_size);
+ object_base = off - objoff;
+ if (truncate_size <= object_base) {
+ truncate_size = 0;
+ } else {
+ truncate_size -= object_base;
+ if (truncate_size > object_size)
+ truncate_size = object_size;
+ }
+
+ osd_req_op_extent_init(req, 0, opcode, objoff, objlen,
+ truncate_size, truncate_seq);
+
+ /*
+ * A second op in the ops array means the caller wants to
+ * also issue a include a 'startsync' command so that the
+ * osd will flush data quickly.
+ */
+ if (num_ops > 1)
+ osd_req_op_init(req, 1, CEPH_OSD_OP_STARTSYNC);
+
+ req->r_file_layout = *layout; /* keep a copy */
- ceph_osdc_build_request(req, off, *plen, num_op, ops,
- snapc, vino.snap, mtime);
+ snprintf(req->r_oid, sizeof(req->r_oid), "%llx.%08llx",
+ vino.ino, objnum);
+ req->r_oid_len = strlen(req->r_oid);
return req;
}
@@ -558,21 +834,46 @@ static void __kick_osd_requests(struct ceph_osd_client *osdc,
struct ceph_osd *osd)
{
struct ceph_osd_request *req, *nreq;
+ LIST_HEAD(resend);
int err;
dout("__kick_osd_requests osd%d\n", osd->o_osd);
err = __reset_osd(osdc, osd);
if (err)
return;
-
+ /*
+ * Build up a list of requests to resend by traversing the
+ * osd's list of requests. Requests for a given object are
+ * sent in tid order, and that is also the order they're
+ * kept on this list. Therefore all requests that are in
+ * flight will be found first, followed by all requests that
+ * have not yet been sent. And to resend requests while
+ * preserving this order we will want to put any sent
+ * requests back on the front of the osd client's unsent
+ * list.
+ *
+ * So we build a separate ordered list of already-sent
+ * requests for the affected osd and splice it onto the
+ * front of the osd client's unsent list. Once we've seen a
+ * request that has not yet been sent we're done. Those
+ * requests are already sitting right where they belong.
+ */
list_for_each_entry(req, &osd->o_requests, r_osd_item) {
- list_move(&req->r_req_lru_item, &osdc->req_unsent);
- dout("requeued %p tid %llu osd%d\n", req, req->r_tid,
+ if (!req->r_sent)
+ break;
+ list_move_tail(&req->r_req_lru_item, &resend);
+ dout("requeueing %p tid %llu osd%d\n", req, req->r_tid,
osd->o_osd);
if (!req->r_linger)
req->r_flags |= CEPH_OSD_FLAG_RETRY;
}
+ list_splice(&resend, &osdc->req_unsent);
+ /*
+ * Linger requests are re-registered before sending, which
+ * sets up a new tid for each. We add them to the unsent
+ * list at the end to keep things in tid order.
+ */
list_for_each_entry_safe(req, nreq, &osd->o_linger_requests,
r_linger_osd) {
/*
@@ -581,8 +882,8 @@ static void __kick_osd_requests(struct ceph_osd_client *osdc,
*/
BUG_ON(!list_empty(&req->r_req_lru_item));
__register_request(osdc, req);
- list_add(&req->r_req_lru_item, &osdc->req_unsent);
- list_add(&req->r_osd_item, &req->r_osd->o_requests);
+ list_add_tail(&req->r_req_lru_item, &osdc->req_unsent);
+ list_add_tail(&req->r_osd_item, &req->r_osd->o_requests);
__unregister_linger_request(osdc, req);
dout("requeued lingering %p tid %llu osd%d\n", req, req->r_tid,
osd->o_osd);
@@ -654,8 +955,7 @@ static void put_osd(struct ceph_osd *osd)
if (atomic_dec_and_test(&osd->o_ref) && osd->o_auth.authorizer) {
struct ceph_auth_client *ac = osd->o_osdc->client->monc.auth;
- if (ac->ops && ac->ops->destroy_authorizer)
- ac->ops->destroy_authorizer(ac, osd->o_auth.authorizer);
+ ceph_auth_destroy_authorizer(ac, osd->o_auth.authorizer);
kfree(osd);
}
}
@@ -820,14 +1120,6 @@ static void __register_request(struct ceph_osd_client *osdc,
}
}
-static void register_request(struct ceph_osd_client *osdc,
- struct ceph_osd_request *req)
-{
- mutex_lock(&osdc->request_mutex);
- __register_request(osdc, req);
- mutex_unlock(&osdc->request_mutex);
-}
-
/*
* called under osdc->request_mutex
*/
@@ -952,8 +1244,8 @@ static int __map_request(struct ceph_osd_client *osdc,
int err;
dout("map_request %p tid %lld\n", req, req->r_tid);
- err = ceph_calc_object_layout(&pgid, req->r_oid,
- &req->r_file_layout, osdc->osdmap);
+ err = ceph_calc_ceph_pg(&pgid, req->r_oid, osdc->osdmap,
+ ceph_file_layout_pg_pool(req->r_file_layout));
if (err) {
list_move(&req->r_req_lru_item, &osdc->req_notarget);
return err;
@@ -1007,10 +1299,10 @@ static int __map_request(struct ceph_osd_client *osdc,
if (req->r_osd) {
__remove_osd_from_lru(req->r_osd);
- list_add(&req->r_osd_item, &req->r_osd->o_requests);
- list_move(&req->r_req_lru_item, &osdc->req_unsent);
+ list_add_tail(&req->r_osd_item, &req->r_osd->o_requests);
+ list_move_tail(&req->r_req_lru_item, &osdc->req_unsent);
} else {
- list_move(&req->r_req_lru_item, &osdc->req_notarget);
+ list_move_tail(&req->r_req_lru_item, &osdc->req_notarget);
}
err = 1; /* osd or pg changed */
@@ -1045,8 +1337,14 @@ static void __send_request(struct ceph_osd_client *osdc,
list_move_tail(&req->r_req_lru_item, &osdc->req_lru);
ceph_msg_get(req->r_request); /* send consumes a ref */
- ceph_con_send(&req->r_osd->o_con, req->r_request);
+
+ /* Mark the request unsafe if this is the first timet's being sent. */
+
+ if (!req->r_sent && req->r_unsafe_callback)
+ req->r_unsafe_callback(req, true);
req->r_sent = req->r_osd->o_incarnation;
+
+ ceph_con_send(&req->r_osd->o_con, req->r_request);
}
/*
@@ -1134,31 +1432,11 @@ static void handle_osds_timeout(struct work_struct *work)
static void complete_request(struct ceph_osd_request *req)
{
- if (req->r_safe_callback)
- req->r_safe_callback(req, NULL);
+ if (req->r_unsafe_callback)
+ req->r_unsafe_callback(req, false);
complete_all(&req->r_safe_completion); /* fsync waiter */
}
-static int __decode_pgid(void **p, void *end, struct ceph_pg *pgid)
-{
- __u8 v;
-
- ceph_decode_need(p, end, 1 + 8 + 4 + 4, bad);
- v = ceph_decode_8(p);
- if (v > 1) {
- pr_warning("do not understand pg encoding %d > 1", v);
- return -EINVAL;
- }
- pgid->pool = ceph_decode_64(p);
- pgid->seed = ceph_decode_32(p);
- *p += 4;
- return 0;
-
-bad:
- pr_warning("incomplete pg encoding");
- return -EINVAL;
-}
-
/*
* handle osd op reply. either call the callback if it is specified,
* or do the completion to wake up the waiting thread.
@@ -1170,7 +1448,8 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg,
struct ceph_osd_request *req;
u64 tid;
int object_len;
- int numops, payload_len, flags;
+ unsigned int numops;
+ int payload_len, flags;
s32 result;
s32 retry_attempt;
struct ceph_pg pg;
@@ -1178,7 +1457,9 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg,
u32 reassert_epoch;
u64 reassert_version;
u32 osdmap_epoch;
- int i;
+ int already_completed;
+ u32 bytes;
+ unsigned int i;
tid = le64_to_cpu(msg->hdr.tid);
dout("handle_reply %p tid %llu\n", msg, tid);
@@ -1191,7 +1472,7 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg,
ceph_decode_need(&p, end, object_len, bad);
p += object_len;
- err = __decode_pgid(&p, end, &pg);
+ err = ceph_decode_pgid(&p, end, &pg);
if (err)
goto bad;
@@ -1207,8 +1488,7 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg,
req = __lookup_request(osdc, tid);
if (req == NULL) {
dout("handle_reply tid %llu dne\n", tid);
- mutex_unlock(&osdc->request_mutex);
- return;
+ goto bad_mutex;
}
ceph_osdc_get_request(req);
@@ -1233,9 +1513,10 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg,
payload_len += len;
p += sizeof(*op);
}
- if (payload_len != le32_to_cpu(msg->hdr.data_len)) {
+ bytes = le32_to_cpu(msg->hdr.data_len);
+ if (payload_len != bytes) {
pr_warning("sum of op payload lens %d != data_len %d",
- payload_len, le32_to_cpu(msg->hdr.data_len));
+ payload_len, bytes);
goto bad_put;
}
@@ -1244,21 +1525,9 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg,
for (i = 0; i < numops; i++)
req->r_reply_op_result[i] = ceph_decode_32(&p);
- /*
- * if this connection filled our message, drop our reference now, to
- * avoid a (safe but slower) revoke later.
- */
- if (req->r_con_filling_msg == con && req->r_reply == msg) {
- dout(" dropping con_filling_msg ref %p\n", con);
- req->r_con_filling_msg = NULL;
- con->ops->put(con);
- }
-
if (!req->r_got_reply) {
- unsigned int bytes;
req->r_result = result;
- bytes = le32_to_cpu(msg->hdr.data_len);
dout("handle_reply result %d bytes %d\n", req->r_result,
bytes);
if (req->r_result == 0)
@@ -1286,7 +1555,11 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg,
((flags & CEPH_OSD_FLAG_WRITE) == 0))
__unregister_request(osdc, req);
+ already_completed = req->r_completed;
+ req->r_completed = 1;
mutex_unlock(&osdc->request_mutex);
+ if (already_completed)
+ goto done;
if (req->r_callback)
req->r_callback(req, msg);
@@ -1303,6 +1576,8 @@ done:
bad_put:
ceph_osdc_put_request(req);
+bad_mutex:
+ mutex_unlock(&osdc->request_mutex);
bad:
pr_err("corrupt osd_op_reply got %d %d\n",
(int)msg->front.iov_len, le32_to_cpu(msg->hdr.front_len));
@@ -1736,6 +2011,104 @@ bad:
}
/*
+ * build new request AND message
+ *
+ */
+void ceph_osdc_build_request(struct ceph_osd_request *req, u64 off,
+ struct ceph_snap_context *snapc, u64 snap_id,
+ struct timespec *mtime)
+{
+ struct ceph_msg *msg = req->r_request;
+ void *p;
+ size_t msg_size;
+ int flags = req->r_flags;
+ u64 data_len;
+ unsigned int i;
+
+ req->r_snapid = snap_id;
+ req->r_snapc = ceph_get_snap_context(snapc);
+
+ /* encode request */
+ msg->hdr.version = cpu_to_le16(4);
+
+ p = msg->front.iov_base;
+ ceph_encode_32(&p, 1); /* client_inc is always 1 */
+ req->r_request_osdmap_epoch = p;
+ p += 4;
+ req->r_request_flags = p;
+ p += 4;
+ if (req->r_flags & CEPH_OSD_FLAG_WRITE)
+ ceph_encode_timespec(p, mtime);
+ p += sizeof(struct ceph_timespec);
+ req->r_request_reassert_version = p;
+ p += sizeof(struct ceph_eversion); /* will get filled in */
+
+ /* oloc */
+ ceph_encode_8(&p, 4);
+ ceph_encode_8(&p, 4);
+ ceph_encode_32(&p, 8 + 4 + 4);
+ req->r_request_pool = p;
+ p += 8;
+ ceph_encode_32(&p, -1); /* preferred */
+ ceph_encode_32(&p, 0); /* key len */
+
+ ceph_encode_8(&p, 1);
+ req->r_request_pgid = p;
+ p += 8 + 4;
+ ceph_encode_32(&p, -1); /* preferred */
+
+ /* oid */
+ ceph_encode_32(&p, req->r_oid_len);
+ memcpy(p, req->r_oid, req->r_oid_len);
+ dout("oid '%.*s' len %d\n", req->r_oid_len, req->r_oid, req->r_oid_len);
+ p += req->r_oid_len;
+
+ /* ops--can imply data */
+ ceph_encode_16(&p, (u16)req->r_num_ops);
+ data_len = 0;
+ for (i = 0; i < req->r_num_ops; i++) {
+ data_len += osd_req_encode_op(req, p, i);
+ p += sizeof(struct ceph_osd_op);
+ }
+
+ /* snaps */
+ ceph_encode_64(&p, req->r_snapid);
+ ceph_encode_64(&p, req->r_snapc ? req->r_snapc->seq : 0);
+ ceph_encode_32(&p, req->r_snapc ? req->r_snapc->num_snaps : 0);
+ if (req->r_snapc) {
+ for (i = 0; i < snapc->num_snaps; i++) {
+ ceph_encode_64(&p, req->r_snapc->snaps[i]);
+ }
+ }
+
+ req->r_request_attempts = p;
+ p += 4;
+
+ /* data */
+ if (flags & CEPH_OSD_FLAG_WRITE) {
+ u16 data_off;
+
+ /*
+ * The header "data_off" is a hint to the receiver
+ * allowing it to align received data into its
+ * buffers such that there's no need to re-copy
+ * it before writing it to disk (direct I/O).
+ */
+ data_off = (u16) (off & 0xffff);
+ req->r_request->hdr.data_off = cpu_to_le16(data_off);
+ }
+ req->r_request->hdr.data_len = cpu_to_le32(data_len);
+
+ BUG_ON(p > msg->front.iov_base + msg->front.iov_len);
+ msg_size = p - msg->front.iov_base;
+ msg->front.iov_len = msg_size;
+ msg->hdr.front_len = cpu_to_le32(msg_size);
+
+ dout("build_request msg_size was %d\n", (int)msg_size);
+}
+EXPORT_SYMBOL(ceph_osdc_build_request);
+
+/*
* Register request, send initial attempt.
*/
int ceph_osdc_start_request(struct ceph_osd_client *osdc,
@@ -1744,41 +2117,26 @@ int ceph_osdc_start_request(struct ceph_osd_client *osdc,
{
int rc = 0;
- req->r_request->pages = req->r_pages;
- req->r_request->nr_pages = req->r_num_pages;
-#ifdef CONFIG_BLOCK
- req->r_request->bio = req->r_bio;
-#endif
- req->r_request->trail = &req->r_trail;
-
- register_request(osdc, req);
-
down_read(&osdc->map_sem);
mutex_lock(&osdc->request_mutex);
- /*
- * a racing kick_requests() may have sent the message for us
- * while we dropped request_mutex above, so only send now if
- * the request still han't been touched yet.
- */
- if (req->r_sent == 0) {
- rc = __map_request(osdc, req, 0);
- if (rc < 0) {
- if (nofail) {
- dout("osdc_start_request failed map, "
- " will retry %lld\n", req->r_tid);
- rc = 0;
- }
- goto out_unlock;
- }
- if (req->r_osd == NULL) {
- dout("send_request %p no up osds in pg\n", req);
- ceph_monc_request_next_osdmap(&osdc->client->monc);
- } else {
- __send_request(osdc, req);
+ __register_request(osdc, req);
+ WARN_ON(req->r_sent);
+ rc = __map_request(osdc, req, 0);
+ if (rc < 0) {
+ if (nofail) {
+ dout("osdc_start_request failed map, "
+ " will retry %lld\n", req->r_tid);
+ rc = 0;
}
- rc = 0;
+ goto out_unlock;
}
-
+ if (req->r_osd == NULL) {
+ dout("send_request %p no up osds in pg\n", req);
+ ceph_monc_request_next_osdmap(&osdc->client->monc);
+ } else {
+ __send_queued(osdc);
+ }
+ rc = 0;
out_unlock:
mutex_unlock(&osdc->request_mutex);
up_read(&osdc->map_sem);
@@ -1940,18 +2298,22 @@ int ceph_osdc_readpages(struct ceph_osd_client *osdc,
dout("readpages on ino %llx.%llx on %llu~%llu\n", vino.ino,
vino.snap, off, *plen);
- req = ceph_osdc_new_request(osdc, layout, vino, off, plen,
+ req = ceph_osdc_new_request(osdc, layout, vino, off, plen, 1,
CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ,
- NULL, 0, truncate_seq, truncate_size, NULL,
- false, page_align);
+ NULL, truncate_seq, truncate_size,
+ false);
if (IS_ERR(req))
return PTR_ERR(req);
/* it may be a short read due to an object boundary */
- req->r_pages = pages;
- dout("readpages final extent is %llu~%llu (%d pages align %d)\n",
- off, *plen, req->r_num_pages, page_align);
+ osd_req_op_extent_osd_data_pages(req, 0,
+ pages, *plen, page_align, false, false);
+
+ dout("readpages final extent is %llu~%llu (%llu bytes align %d)\n",
+ off, *plen, *plen, page_align);
+
+ ceph_osdc_build_request(req, off, NULL, vino.snap, NULL);
rc = ceph_osdc_start_request(osdc, req, false);
if (!rc)
@@ -1978,20 +2340,21 @@ int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino,
int rc = 0;
int page_align = off & ~PAGE_MASK;
- BUG_ON(vino.snap != CEPH_NOSNAP);
- req = ceph_osdc_new_request(osdc, layout, vino, off, &len,
+ BUG_ON(vino.snap != CEPH_NOSNAP); /* snapshots aren't writeable */
+ req = ceph_osdc_new_request(osdc, layout, vino, off, &len, 1,
CEPH_OSD_OP_WRITE,
CEPH_OSD_FLAG_ONDISK | CEPH_OSD_FLAG_WRITE,
- snapc, 0,
- truncate_seq, truncate_size, mtime,
- true, page_align);
+ snapc, truncate_seq, truncate_size,
+ true);
if (IS_ERR(req))
return PTR_ERR(req);
/* it may be a short write due to an object boundary */
- req->r_pages = pages;
- dout("writepages %llu~%llu (%d pages)\n", off, len,
- req->r_num_pages);
+ osd_req_op_extent_osd_data_pages(req, 0, pages, len, page_align,
+ false, false);
+ dout("writepages %llu~%llu (%llu bytes)\n", off, len, len);
+
+ ceph_osdc_build_request(req, off, snapc, CEPH_NOSNAP, mtime);
rc = ceph_osdc_start_request(osdc, req, true);
if (!rc)
@@ -2005,6 +2368,26 @@ int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino,
}
EXPORT_SYMBOL(ceph_osdc_writepages);
+int ceph_osdc_setup(void)
+{
+ BUG_ON(ceph_osd_request_cache);
+ ceph_osd_request_cache = kmem_cache_create("ceph_osd_request",
+ sizeof (struct ceph_osd_request),
+ __alignof__(struct ceph_osd_request),
+ 0, NULL);
+
+ return ceph_osd_request_cache ? 0 : -ENOMEM;
+}
+EXPORT_SYMBOL(ceph_osdc_setup);
+
+void ceph_osdc_cleanup(void)
+{
+ BUG_ON(!ceph_osd_request_cache);
+ kmem_cache_destroy(ceph_osd_request_cache);
+ ceph_osd_request_cache = NULL;
+}
+EXPORT_SYMBOL(ceph_osdc_cleanup);
+
/*
* handle incoming message
*/
@@ -2064,13 +2447,10 @@ static struct ceph_msg *get_reply(struct ceph_connection *con,
goto out;
}
- if (req->r_con_filling_msg) {
+ if (req->r_reply->con)
dout("%s revoking msg %p from old con %p\n", __func__,
- req->r_reply, req->r_con_filling_msg);
- ceph_msg_revoke_incoming(req->r_reply);
- req->r_con_filling_msg->ops->put(req->r_con_filling_msg);
- req->r_con_filling_msg = NULL;
- }
+ req->r_reply, req->r_reply->con);
+ ceph_msg_revoke_incoming(req->r_reply);
if (front > req->r_reply->front.iov_len) {
pr_warning("get_reply front %d > preallocated %d\n",
@@ -2084,26 +2464,29 @@ static struct ceph_msg *get_reply(struct ceph_connection *con,
m = ceph_msg_get(req->r_reply);
if (data_len > 0) {
- int want = calc_pages_for(req->r_page_alignment, data_len);
-
- if (req->r_pages && unlikely(req->r_num_pages < want)) {
- pr_warning("tid %lld reply has %d bytes %d pages, we"
- " had only %d pages ready\n", tid, data_len,
- want, req->r_num_pages);
- *skip = 1;
- ceph_msg_put(m);
- m = NULL;
- goto out;
+ struct ceph_osd_data *osd_data;
+
+ /*
+ * XXX This is assuming there is only one op containing
+ * XXX page data. Probably OK for reads, but this
+ * XXX ought to be done more generally.
+ */
+ osd_data = osd_req_op_extent_osd_data(req, 0);
+ if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) {
+ if (osd_data->pages &&
+ unlikely(osd_data->length < data_len)) {
+
+ pr_warning("tid %lld reply has %d bytes "
+ "we had only %llu bytes ready\n",
+ tid, data_len, osd_data->length);
+ *skip = 1;
+ ceph_msg_put(m);
+ m = NULL;
+ goto out;
+ }
}
- m->pages = req->r_pages;
- m->nr_pages = req->r_num_pages;
- m->page_alignment = req->r_page_alignment;
-#ifdef CONFIG_BLOCK
- m->bio = req->r_bio;
-#endif
}
*skip = 0;
- req->r_con_filling_msg = con->ops->get(con);
dout("get_reply tid %lld %p\n", tid, m);
out:
@@ -2168,13 +2551,17 @@ static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con,
struct ceph_auth_handshake *auth = &o->o_auth;
if (force_new && auth->authorizer) {
- if (ac->ops && ac->ops->destroy_authorizer)
- ac->ops->destroy_authorizer(ac, auth->authorizer);
+ ceph_auth_destroy_authorizer(ac, auth->authorizer);
auth->authorizer = NULL;
}
- if (!auth->authorizer && ac->ops && ac->ops->create_authorizer) {
- int ret = ac->ops->create_authorizer(ac, CEPH_ENTITY_TYPE_OSD,
- auth);
+ if (!auth->authorizer) {
+ int ret = ceph_auth_create_authorizer(ac, CEPH_ENTITY_TYPE_OSD,
+ auth);
+ if (ret)
+ return ERR_PTR(ret);
+ } else {
+ int ret = ceph_auth_update_authorizer(ac, CEPH_ENTITY_TYPE_OSD,
+ auth);
if (ret)
return ERR_PTR(ret);
}
@@ -2190,11 +2577,7 @@ static int verify_authorizer_reply(struct ceph_connection *con, int len)
struct ceph_osd_client *osdc = o->o_osdc;
struct ceph_auth_client *ac = osdc->client->monc.auth;
- /*
- * XXX If ac->ops or ac->ops->verify_authorizer_reply is null,
- * XXX which do we do: succeed or fail?
- */
- return ac->ops->verify_authorizer_reply(ac, o->o_auth.authorizer, len);
+ return ceph_auth_verify_authorizer_reply(ac, o->o_auth.authorizer, len);
}
static int invalidate_authorizer(struct ceph_connection *con)
@@ -2203,9 +2586,7 @@ static int invalidate_authorizer(struct ceph_connection *con)
struct ceph_osd_client *osdc = o->o_osdc;
struct ceph_auth_client *ac = osdc->client->monc.auth;
- if (ac->ops && ac->ops->invalidate_authorizer)
- ac->ops->invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD);
-
+ ceph_auth_invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD);
return ceph_monc_validate_auth(&osdc->client->monc);
}