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-rw-r--r--include/linux/ceph/osd_client.h17
-rw-r--r--include/linux/ceph/rados.h28
-rw-r--r--net/ceph/osd_client.c90
3 files changed, 135 insertions, 0 deletions
diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h
index f3e828460c91..7a2af5034278 100644
--- a/include/linux/ceph/osd_client.h
+++ b/include/linux/ceph/osd_client.h
@@ -136,6 +136,13 @@ struct ceph_osd_req_op {
u64 expected_object_size;
u64 expected_write_size;
} alloc_hint;
+ struct {
+ u64 snapid;
+ u64 src_version;
+ u8 flags;
+ u32 src_fadvise_flags;
+ struct ceph_osd_data osd_data;
+ } copy_from;
};
};
@@ -510,6 +517,16 @@ extern int ceph_osdc_writepages(struct ceph_osd_client *osdc,
struct timespec64 *mtime,
struct page **pages, int nr_pages);
+int ceph_osdc_copy_from(struct ceph_osd_client *osdc,
+ u64 src_snapid, u64 src_version,
+ struct ceph_object_id *src_oid,
+ struct ceph_object_locator *src_oloc,
+ u32 src_fadvise_flags,
+ struct ceph_object_id *dst_oid,
+ struct ceph_object_locator *dst_oloc,
+ u32 dst_fadvise_flags,
+ u8 copy_from_flags);
+
/* watch/notify */
struct ceph_osd_linger_request *
ceph_osdc_watch(struct ceph_osd_client *osdc,
diff --git a/include/linux/ceph/rados.h b/include/linux/ceph/rados.h
index f1988387c5ad..3eb0e55665b4 100644
--- a/include/linux/ceph/rados.h
+++ b/include/linux/ceph/rados.h
@@ -410,6 +410,14 @@ enum {
enum {
CEPH_OSD_OP_FLAG_EXCL = 1, /* EXCL object create */
CEPH_OSD_OP_FLAG_FAILOK = 2, /* continue despite failure */
+ CEPH_OSD_OP_FLAG_FADVISE_RANDOM = 0x4, /* the op is random */
+ CEPH_OSD_OP_FLAG_FADVISE_SEQUENTIAL = 0x8, /* the op is sequential */
+ CEPH_OSD_OP_FLAG_FADVISE_WILLNEED = 0x10,/* data will be accessed in
+ the near future */
+ CEPH_OSD_OP_FLAG_FADVISE_DONTNEED = 0x20,/* data will not be accessed
+ in the near future */
+ CEPH_OSD_OP_FLAG_FADVISE_NOCACHE = 0x40,/* data will be accessed only
+ once by this client */
};
#define EOLDSNAPC ERESTART /* ORDERSNAP flag set; writer has old snapc*/
@@ -432,6 +440,15 @@ enum {
};
enum {
+ CEPH_OSD_COPY_FROM_FLAG_FLUSH = 1, /* part of a flush operation */
+ CEPH_OSD_COPY_FROM_FLAG_IGNORE_OVERLAY = 2, /* ignore pool overlay */
+ CEPH_OSD_COPY_FROM_FLAG_IGNORE_CACHE = 4, /* ignore osd cache logic */
+ CEPH_OSD_COPY_FROM_FLAG_MAP_SNAP_CLONE = 8, /* map snap direct to
+ * cloneid */
+ CEPH_OSD_COPY_FROM_FLAG_RWORDERED = 16, /* order with write */
+};
+
+enum {
CEPH_OSD_WATCH_OP_UNWATCH = 0,
CEPH_OSD_WATCH_OP_LEGACY_WATCH = 1,
/* note: use only ODD ids to prevent pre-giant code from
@@ -497,6 +514,17 @@ struct ceph_osd_op {
__le64 expected_object_size;
__le64 expected_write_size;
} __attribute__ ((packed)) alloc_hint;
+ struct {
+ __le64 snapid;
+ __le64 src_version;
+ __u8 flags; /* CEPH_OSD_COPY_FROM_FLAG_* */
+ /*
+ * CEPH_OSD_OP_FLAG_FADVISE_*: fadvise flags
+ * for src object, flags for dest object are in
+ * ceph_osd_op::flags.
+ */
+ __le32 src_fadvise_flags;
+ } __attribute__ ((packed)) copy_from;
};
__le32 payload_len;
} __attribute__ ((packed));
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index a0148de51cc6..d23a9f81f3d7 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -410,6 +410,9 @@ static void osd_req_op_data_release(struct ceph_osd_request *osd_req,
case CEPH_OSD_OP_LIST_WATCHERS:
ceph_osd_data_release(&op->list_watchers.response_data);
break;
+ case CEPH_OSD_OP_COPY_FROM:
+ ceph_osd_data_release(&op->copy_from.osd_data);
+ break;
default:
break;
}
@@ -702,6 +705,7 @@ static void get_num_data_items(struct ceph_osd_request *req,
case CEPH_OSD_OP_SETXATTR:
case CEPH_OSD_OP_CMPXATTR:
case CEPH_OSD_OP_NOTIFY_ACK:
+ case CEPH_OSD_OP_COPY_FROM:
*num_request_data_items += 1;
break;
@@ -1016,6 +1020,14 @@ static u32 osd_req_encode_op(struct ceph_osd_op *dst,
case CEPH_OSD_OP_CREATE:
case CEPH_OSD_OP_DELETE:
break;
+ case CEPH_OSD_OP_COPY_FROM:
+ dst->copy_from.snapid = cpu_to_le64(src->copy_from.snapid);
+ dst->copy_from.src_version =
+ cpu_to_le64(src->copy_from.src_version);
+ dst->copy_from.flags = src->copy_from.flags;
+ dst->copy_from.src_fadvise_flags =
+ cpu_to_le32(src->copy_from.src_fadvise_flags);
+ break;
default:
pr_err("unsupported osd opcode %s\n",
ceph_osd_op_name(src->op));
@@ -1947,6 +1959,10 @@ static void setup_request_data(struct ceph_osd_request *req)
ceph_osdc_msg_data_add(request_msg,
&op->notify_ack.request_data);
break;
+ case CEPH_OSD_OP_COPY_FROM:
+ ceph_osdc_msg_data_add(request_msg,
+ &op->copy_from.osd_data);
+ break;
/* reply */
case CEPH_OSD_OP_STAT:
@@ -5255,6 +5271,80 @@ int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino,
}
EXPORT_SYMBOL(ceph_osdc_writepages);
+static int osd_req_op_copy_from_init(struct ceph_osd_request *req,
+ u64 src_snapid, u64 src_version,
+ struct ceph_object_id *src_oid,
+ struct ceph_object_locator *src_oloc,
+ u32 src_fadvise_flags,
+ u32 dst_fadvise_flags,
+ u8 copy_from_flags)
+{
+ struct ceph_osd_req_op *op;
+ struct page **pages;
+ void *p, *end;
+
+ pages = ceph_alloc_page_vector(1, GFP_KERNEL);
+ if (IS_ERR(pages))
+ return PTR_ERR(pages);
+
+ op = _osd_req_op_init(req, 0, CEPH_OSD_OP_COPY_FROM, dst_fadvise_flags);
+ op->copy_from.snapid = src_snapid;
+ op->copy_from.src_version = src_version;
+ op->copy_from.flags = copy_from_flags;
+ op->copy_from.src_fadvise_flags = src_fadvise_flags;
+
+ p = page_address(pages[0]);
+ end = p + PAGE_SIZE;
+ ceph_encode_string(&p, end, src_oid->name, src_oid->name_len);
+ encode_oloc(&p, end, src_oloc);
+ op->indata_len = PAGE_SIZE - (end - p);
+
+ ceph_osd_data_pages_init(&op->copy_from.osd_data, pages,
+ op->indata_len, 0, false, true);
+ return 0;
+}
+
+int ceph_osdc_copy_from(struct ceph_osd_client *osdc,
+ u64 src_snapid, u64 src_version,
+ struct ceph_object_id *src_oid,
+ struct ceph_object_locator *src_oloc,
+ u32 src_fadvise_flags,
+ struct ceph_object_id *dst_oid,
+ struct ceph_object_locator *dst_oloc,
+ u32 dst_fadvise_flags,
+ u8 copy_from_flags)
+{
+ struct ceph_osd_request *req;
+ int ret;
+
+ req = ceph_osdc_alloc_request(osdc, NULL, 1, false, GFP_KERNEL);
+ if (!req)
+ return -ENOMEM;
+
+ req->r_flags = CEPH_OSD_FLAG_WRITE;
+
+ ceph_oloc_copy(&req->r_t.base_oloc, dst_oloc);
+ ceph_oid_copy(&req->r_t.base_oid, dst_oid);
+
+ ret = osd_req_op_copy_from_init(req, src_snapid, src_version, src_oid,
+ src_oloc, src_fadvise_flags,
+ dst_fadvise_flags, copy_from_flags);
+ if (ret)
+ goto out;
+
+ ret = ceph_osdc_alloc_messages(req, GFP_KERNEL);
+ if (ret)
+ goto out;
+
+ ceph_osdc_start_request(osdc, req, false);
+ ret = ceph_osdc_wait_request(osdc, req);
+
+out:
+ ceph_osdc_put_request(req);
+ return ret;
+}
+EXPORT_SYMBOL(ceph_osdc_copy_from);
+
int __init ceph_osdc_setup(void)
{
size_t size = sizeof(struct ceph_osd_request) +
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 10:41:25 +0000