From 78beb0ff2feceb1d7568333f93195e1a4d95a49a Mon Sep 17 00:00:00 2001 From: Luis Henriques Date: Wed, 8 Jan 2020 10:03:53 +0000 Subject: [PATCH] ceph: use copy-from2 op in copy_file_range Instead of using the copy-from operation, switch copy_file_range to the new copy-from2 operation, which allows to send the truncate_seq and truncate_size parameters. If an OSD does not support the copy-from2 operation it will return -EOPNOTSUPP. In that case, the kernel client will stop trying to do remote object copies for this fs client and will always use the generic VFS copy_file_range. Signed-off-by: Luis Henriques Reviewed-by: Jeff Layton Signed-off-by: Ilya Dryomov --- fs/ceph/file.c | 11 ++++++++++- fs/ceph/super.c | 1 + fs/ceph/super.h | 2 ++ include/linux/ceph/osd_client.h | 1 + include/linux/ceph/rados.h | 2 ++ net/ceph/osd_client.c | 18 ++++++++++++------ 6 files changed, 28 insertions(+), 7 deletions(-) diff --git a/fs/ceph/file.c b/fs/ceph/file.c index 11929d2..c3b8e8e 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -1974,6 +1974,9 @@ static ssize_t __ceph_copy_file_range(struct file *src_file, loff_t src_off, if (ceph_test_mount_opt(src_fsc, NOCOPYFROM)) return -EOPNOTSUPP; + if (!src_fsc->have_copy_from2) + return -EOPNOTSUPP; + /* * Striped file layouts require that we copy partial objects, but the * OSD copy-from operation only supports full-object copies. Limit @@ -2101,8 +2104,14 @@ static ssize_t __ceph_copy_file_range(struct file *src_file, loff_t src_off, CEPH_OSD_OP_FLAG_FADVISE_NOCACHE, &dst_oid, &dst_oloc, CEPH_OSD_OP_FLAG_FADVISE_SEQUENTIAL | - CEPH_OSD_OP_FLAG_FADVISE_DONTNEED, 0); + CEPH_OSD_OP_FLAG_FADVISE_DONTNEED, + dst_ci->i_truncate_seq, dst_ci->i_truncate_size, + CEPH_OSD_COPY_FROM_FLAG_TRUNCATE_SEQ); if (err) { + if (err == -EOPNOTSUPP) { + src_fsc->have_copy_from2 = false; + pr_notice("OSDs don't support copy-from2; disabling copy offload\n"); + } dout("ceph_osdc_copy_from returned %d\n", err); if (!ret) ret = err; diff --git a/fs/ceph/super.c b/fs/ceph/super.c index 112927d..bfb8aea 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -718,6 +718,7 @@ static struct ceph_fs_client *create_fs_client(struct ceph_mount_options *fsopt, fsc->sb = NULL; fsc->mount_state = CEPH_MOUNT_MOUNTING; fsc->filp_gen = 1; + fsc->have_copy_from2 = true; atomic_long_set(&fsc->writeback_count, 0); diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 3bf1a01..1e456a9 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -106,6 +106,8 @@ struct ceph_fs_client { unsigned long last_auto_reconnect; bool blacklisted; + bool have_copy_from2; + u32 filp_gen; loff_t max_file_size; diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h index eaffbdd..5a62dbd3f 100644 --- a/include/linux/ceph/osd_client.h +++ b/include/linux/ceph/osd_client.h @@ -534,6 +534,7 @@ int ceph_osdc_copy_from(struct ceph_osd_client *osdc, struct ceph_object_id *dst_oid, struct ceph_object_locator *dst_oloc, u32 dst_fadvise_flags, + u32 truncate_seq, u64 truncate_size, u8 copy_from_flags); /* watch/notify */ diff --git a/include/linux/ceph/rados.h b/include/linux/ceph/rados.h index 3eb0e556..59bdfd4 100644 --- a/include/linux/ceph/rados.h +++ b/include/linux/ceph/rados.h @@ -256,6 +256,7 @@ extern const char *ceph_osd_state_name(int s); \ /* tiering */ \ f(COPY_FROM, __CEPH_OSD_OP(WR, DATA, 26), "copy-from") \ + f(COPY_FROM2, __CEPH_OSD_OP(WR, DATA, 45), "copy-from2") \ f(COPY_GET_CLASSIC, __CEPH_OSD_OP(RD, DATA, 27), "copy-get-classic") \ f(UNDIRTY, __CEPH_OSD_OP(WR, DATA, 28), "undirty") \ f(ISDIRTY, __CEPH_OSD_OP(RD, DATA, 29), "isdirty") \ @@ -446,6 +447,7 @@ enum { CEPH_OSD_COPY_FROM_FLAG_MAP_SNAP_CLONE = 8, /* map snap direct to * cloneid */ CEPH_OSD_COPY_FROM_FLAG_RWORDERED = 16, /* order with write */ + CEPH_OSD_COPY_FROM_FLAG_TRUNCATE_SEQ = 32, /* send truncate_{seq,size} */ }; enum { diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index ba45b07..b68b376 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -402,7 +402,7 @@ 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: + case CEPH_OSD_OP_COPY_FROM2: ceph_osd_data_release(&op->copy_from.osd_data); break; default: @@ -697,7 +697,7 @@ 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: + case CEPH_OSD_OP_COPY_FROM2: *num_request_data_items += 1; break; @@ -1029,7 +1029,7 @@ 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: + case CEPH_OSD_OP_COPY_FROM2: dst->copy_from.snapid = cpu_to_le64(src->copy_from.snapid); dst->copy_from.src_version = cpu_to_le64(src->copy_from.src_version); @@ -1966,7 +1966,7 @@ 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: + case CEPH_OSD_OP_COPY_FROM2: ceph_osdc_msg_data_add(request_msg, &op->copy_from.osd_data); break; @@ -5315,6 +5315,7 @@ static int osd_req_op_copy_from_init(struct ceph_osd_request *req, struct ceph_object_locator *src_oloc, u32 src_fadvise_flags, u32 dst_fadvise_flags, + u32 truncate_seq, u64 truncate_size, u8 copy_from_flags) { struct ceph_osd_req_op *op; @@ -5325,7 +5326,8 @@ static int osd_req_op_copy_from_init(struct ceph_osd_request *req, if (IS_ERR(pages)) return PTR_ERR(pages); - op = _osd_req_op_init(req, 0, CEPH_OSD_OP_COPY_FROM, dst_fadvise_flags); + op = _osd_req_op_init(req, 0, CEPH_OSD_OP_COPY_FROM2, + dst_fadvise_flags); op->copy_from.snapid = src_snapid; op->copy_from.src_version = src_version; op->copy_from.flags = copy_from_flags; @@ -5335,6 +5337,8 @@ static int osd_req_op_copy_from_init(struct ceph_osd_request *req, end = p + PAGE_SIZE; ceph_encode_string(&p, end, src_oid->name, src_oid->name_len); encode_oloc(&p, end, src_oloc); + ceph_encode_32(&p, truncate_seq); + ceph_encode_64(&p, truncate_size); op->indata_len = PAGE_SIZE - (end - p); ceph_osd_data_pages_init(&op->copy_from.osd_data, pages, @@ -5350,6 +5354,7 @@ int ceph_osdc_copy_from(struct ceph_osd_client *osdc, struct ceph_object_id *dst_oid, struct ceph_object_locator *dst_oloc, u32 dst_fadvise_flags, + u32 truncate_seq, u64 truncate_size, u8 copy_from_flags) { struct ceph_osd_request *req; @@ -5366,7 +5371,8 @@ int ceph_osdc_copy_from(struct ceph_osd_client *osdc, 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); + dst_fadvise_flags, truncate_seq, + truncate_size, copy_from_flags); if (ret) goto out; -- 2.7.4