diff options
Diffstat (limited to 'xlators/protocol')
-rw-r--r-- | xlators/protocol/client/src/client-common.c | 32 | ||||
-rw-r--r-- | xlators/protocol/client/src/client-common.h | 6 | ||||
-rw-r--r-- | xlators/protocol/client/src/client-helpers.c | 28 | ||||
-rw-r--r-- | xlators/protocol/client/src/client-rpc-fops_v2.c | 141 | ||||
-rw-r--r-- | xlators/protocol/client/src/client.c | 36 | ||||
-rw-r--r-- | xlators/protocol/client/src/client.h | 22 | ||||
-rw-r--r-- | xlators/protocol/server/src/server-common.c | 10 | ||||
-rw-r--r-- | xlators/protocol/server/src/server-common.h | 5 | ||||
-rw-r--r-- | xlators/protocol/server/src/server-helpers.c | 8 | ||||
-rw-r--r-- | xlators/protocol/server/src/server-resolve.c | 39 | ||||
-rw-r--r-- | xlators/protocol/server/src/server-rpc-fops_v2.c | 130 | ||||
-rw-r--r-- | xlators/protocol/server/src/server.h | 14 |
12 files changed, 464 insertions, 7 deletions
diff --git a/xlators/protocol/client/src/client-common.c b/xlators/protocol/client/src/client-common.c index 7708c82091..64db98d661 100644 --- a/xlators/protocol/client/src/client-common.c +++ b/xlators/protocol/client/src/client-common.c @@ -2556,6 +2556,38 @@ out: } int +client_pre_copy_file_range_v2(xlator_t *this, gfx_copy_file_range_req *req, + fd_t *fd_in, off64_t off_in, fd_t *fd_out, + off64_t off_out, size_t size, int32_t flags, + dict_t **xdata) +{ + int64_t remote_fd_in = -1; + int64_t remote_fd_out = -1; + int op_errno = ESTALE; + + CLIENT_GET_REMOTE_FD(this, fd_in, FALLBACK_TO_ANON_FD, remote_fd_in, + op_errno, out); + + CLIENT_GET_REMOTE_FD(this, fd_out, FALLBACK_TO_ANON_FD, remote_fd_out, + op_errno, out); + req->size = size; + req->off_in = off_in; + req->off_out = off_out; + req->fd_in = remote_fd_in; + req->fd_out = remote_fd_out; + req->flag = flags; + + memcpy(req->gfid1, fd_in->inode->gfid, 16); + memcpy(req->gfid2, fd_out->inode->gfid, 16); + + dict_to_xdr(*xdata, &req->xdata); + + return 0; +out: + return -op_errno; +} + +int client_pre_statfs_v2(xlator_t *this, gfx_statfs_req *req, loc_t *loc, dict_t *xdata) { diff --git a/xlators/protocol/client/src/client-common.h b/xlators/protocol/client/src/client-common.h index 5214eae128..a2043d8742 100644 --- a/xlators/protocol/client/src/client-common.h +++ b/xlators/protocol/client/src/client-common.h @@ -621,4 +621,10 @@ client_post_rename_v2(xlator_t *this, gfx_rename_rsp *rsp, struct iatt *stbuf, struct iatt *prenewparent, struct iatt *postnewparent, dict_t **xdata); +int +client_pre_copy_file_range_v2(xlator_t *this, gfx_copy_file_range_req *req, + fd_t *fd_in, off64_t off_in, fd_t *fd_out, + off64_t off_out, size_t size, int32_t flags, + dict_t **xdata); + #endif /* __CLIENT_COMMON_H__ */ diff --git a/xlators/protocol/client/src/client-helpers.c b/xlators/protocol/client/src/client-helpers.c index 849fdfca0b..55e87b3c37 100644 --- a/xlators/protocol/client/src/client-helpers.c +++ b/xlators/protocol/client/src/client-helpers.c @@ -2459,6 +2459,20 @@ client_handle_fop_requirements_v2( lease, this, &this_req->compound_req_v2_u.compound_lease_req, op_errno, out, &args->loc, &args->lease, args->xdata); break; + case GF_FOP_COPY_FILE_RANGE: + /* + * Not going to handle the copy_file_range fop in compound + * operation. This is because, compound operation is going + * to be removed. In fact, AFR one of the heavy consumer of + * compound operations has stopped using that. + * https://github.com/gluster/glusterfs/issues/414 + * Therefore, sending ENOTSUP error for this fop coming as + * comound request. Though, there was no need of handling + * "case GF_FOP_COPY_FILE_RANGE" technically, this comment + * under the label of GF_FOP_COPY_FILE_RANGE will help in + * understanding that this fop does not handle the compund + * request and why. + */ default: return ENOTSUP; } @@ -2631,6 +2645,14 @@ compound_request_cleanup_v2(gfx_compound_req *req) case GF_FOP_SEEK: CLIENT4_COMPOUND_FOP_CLEANUP(curr_req, seek); break; + case GF_FOP_COPY_FILE_RANGE: + /* + * This fop is not handled in compund operations. + * Check the comment added under this fop's section + * in the compound_request_cleanup_v2. Therefore + * keeping this label only as a placeholder with + * a message that, this fop is not handled. + */ default: break; } @@ -3004,6 +3026,12 @@ client_process_response_v2(call_frame_t *frame, xlator_t *this, &this_args_cbk->lease, xdata); break; } + case GF_FOP_COPY_FILE_RANGE: + /* + * Not handling this fop. Returning ENOTSUP. Check + * the comment added for this fop in the function + * client_handle_fop_requirements_v2. + */ default: return -ENOTSUP; } diff --git a/xlators/protocol/client/src/client-rpc-fops_v2.c b/xlators/protocol/client/src/client-rpc-fops_v2.c index ca180c1db4..8f3ee41e5c 100644 --- a/xlators/protocol/client/src/client-rpc-fops_v2.c +++ b/xlators/protocol/client/src/client-rpc-fops_v2.c @@ -2833,6 +2833,72 @@ out: return 0; } +int +client4_0_copy_file_range_cbk(struct rpc_req *req, struct iovec *iov, int count, + void *myframe) +{ + gfx_common_3iatt_rsp rsp = { + 0, + }; + call_frame_t *frame = NULL; + struct iatt stbuf = { + 0, + }; + struct iatt prestat = { + 0, + }; + struct iatt poststat = { + 0, + }; + int ret = 0; + xlator_t *this = NULL; + dict_t *xdata = NULL; + clnt_local_t *local = NULL; + + this = THIS; + + frame = myframe; + local = frame->local; + + if (-1 == req->rpc_status) { + rsp.op_ret = -1; + rsp.op_errno = ENOTCONN; + goto out; + } + + ret = xdr_to_generic(*iov, &rsp, (xdrproc_t)xdr_gfx_common_3iatt_rsp); + if (ret < 0) { + gf_msg(this->name, GF_LOG_ERROR, EINVAL, PC_MSG_XDR_DECODING_FAILED, + "XDR decoding failed"); + rsp.op_ret = -1; + rsp.op_errno = EINVAL; + goto out; + } + + ret = client_post_common_3iatt(this, &rsp, &stbuf, &prestat, &poststat, + &xdata); + if (ret < 0) + goto out; +out: + if (rsp.op_ret == -1) { + gf_msg(this->name, GF_LOG_WARNING, gf_error_to_errno(rsp.op_errno), + PC_MSG_REMOTE_OP_FAILED, "remote operation failed"); + } else if (rsp.op_ret >= 0) { + if (local->attempt_reopen) + client_attempt_reopen(local->fd, this); + if (local->attempt_reopen_out) + client_attempt_reopen(local->fd_out, this); + } + CLIENT_STACK_UNWIND(copy_file_range, frame, rsp.op_ret, + gf_error_to_errno(rsp.op_errno), &stbuf, &prestat, + &poststat, xdata); + + if (xdata) + dict_unref(xdata); + + return 0; +} + int32_t client4_0_releasedir(call_frame_t *frame, xlator_t *this, void *data) { @@ -5846,6 +5912,80 @@ unwind: } int32_t +client4_0_copy_file_range(call_frame_t *frame, xlator_t *this, void *data) +{ + clnt_args_t *args = NULL; + clnt_conf_t *conf = NULL; + clnt_local_t *local = NULL; + gfx_copy_file_range_req req = { + { + 0, + }, + }; + int op_errno = ESTALE; + int ret = 0; + + if (!frame || !this || !data) + goto unwind; + + args = data; + conf = this->private; + + ret = client_pre_copy_file_range_v2(this, &req, args->fd, args->off_in, + args->fd_out, args->off_out, args->size, + args->flags, &args->xdata); + + if (ret) { + op_errno = -ret; + goto unwind; + } + + ret = client_fd_fop_prepare_local(frame, args->fd, req.fd_in); + if (ret) { + op_errno = -ret; + goto unwind; + } + + /* + * Since frame->local is allocated in above function call + * itself, better to use it (with the assumption that it + * has been allocated) directly instead of again calling + * client_fd_fop_prepare_local or modifying it, as doing + * so requires changes in other places as well. + */ + + local = frame->local; + local->fd_out = fd_ref(args->fd_out); + local->attempt_reopen_out = client_is_reopen_needed(args->fd_out, this, + req.fd_out); + + ret = client_submit_request( + this, &req, frame, conf->fops, GFS3_OP_COPY_FILE_RANGE, + client4_0_copy_file_range_cbk, NULL, NULL, 0, NULL, 0, NULL, + (xdrproc_t)xdr_gfx_copy_file_range_req); + if (ret) { + /* + * If the lower layers fail to submit a request, they'll also + * do the unwind for us (see rpc_clnt_submit), so don't unwind + * here in such cases. + */ + gf_msg(this->name, GF_LOG_WARNING, 0, PC_MSG_FOP_SEND_FAILED, + "failed to send the fop"); + } + + GF_FREE(req.xdata.pairs.pairs_val); + + return 0; + +unwind: + CLIENT_STACK_UNWIND(copy_file_range, frame, -1, op_errno, NULL, NULL, NULL, + NULL); + GF_FREE(req.xdata.pairs.pairs_val); + + return 0; +} + +int32_t client4_0_fsetattr(call_frame_t *frame, xlator_t *this, void *data) { clnt_args_t *args = NULL; @@ -6257,6 +6397,7 @@ rpc_clnt_procedure_t clnt4_0_fop_actors[GF_FOP_MAXVALUE] = { [GF_FOP_COMPOUND] = {"COMPOUND", client4_0_compound}, [GF_FOP_ICREATE] = {"ICREATE", client4_0_icreate}, [GF_FOP_NAMELINK] = {"NAMELINK", client4_0_namelink}, + [GF_FOP_COPY_FILE_RANGE] = {"COPY-FILE-RANGE", client4_0_copy_file_range}, }; rpc_clnt_prog_t clnt4_0_fop_prog = { diff --git a/xlators/protocol/client/src/client.c b/xlators/protocol/client/src/client.c index 38723b43b4..c8e84f6e1b 100644 --- a/xlators/protocol/client/src/client.c +++ b/xlators/protocol/client/src/client.c @@ -1129,6 +1129,41 @@ out: return 0; } +int32_t +client_copy_file_range(call_frame_t *frame, xlator_t *this, fd_t *fd_in, + off_t off_in, fd_t *fd_out, off_t off_out, size_t len, + uint32_t flags, dict_t *xdata) +{ + int ret = -1; + clnt_conf_t *conf = NULL; + rpc_clnt_procedure_t *proc = NULL; + clnt_args_t args = { + 0, + }; + + conf = this->private; + if (!conf || !conf->fops) + goto out; + + args.fd = fd_in; + args.fd_out = fd_out; + args.offset = off_in; + args.off_out = off_out; + args.size = len; + args.flags = flags; + args.xdata = xdata; + + proc = &conf->fops->proctable[GF_FOP_COPY_FILE_RANGE]; + if (proc->fn) + ret = proc->fn(frame, this, &args); +out: + if (ret) + STACK_UNWIND_STRICT(copy_file_range, frame, -1, ENOTCONN, NULL, NULL, + NULL, NULL); + + return 0; +} + static gf_boolean_t is_client_rpc_init_command(dict_t *dict, xlator_t *this, char **value) { @@ -2898,6 +2933,7 @@ struct xlator_fops fops = { .icreate = client_icreate, .namelink = client_namelink, .put = client_put, + .copy_file_range = client_copy_file_range, }; struct xlator_dumpops dumpops = { diff --git a/xlators/protocol/client/src/client.h b/xlators/protocol/client/src/client.h index 5fc75a8462..71f84f3ca8 100644 --- a/xlators/protocol/client/src/client.h +++ b/xlators/protocol/client/src/client.h @@ -269,6 +269,7 @@ typedef struct client_local { loc_t loc; loc_t loc2; fd_t *fd; + fd_t *fd_out; /* used in copy_file_range */ clnt_fd_ctx_t *fdctx; uint32_t flags; struct iobref *iobref; @@ -280,6 +281,11 @@ typedef struct client_local { pthread_mutex_t mutex; char *name; gf_boolean_t attempt_reopen; + /* + * The below boolean variable is used + * only for copy_file_range fop + */ + gf_boolean_t attempt_reopen_out; /* required for compound fops */ compound_args_t *compound_args; unsigned int length; /* length of a compound fop */ @@ -289,7 +295,13 @@ typedef struct client_local { typedef struct client_args { loc_t *loc; + /* + * This is the source fd for copy_file_range and + * the default fd for any other fd based fop which + * requires only one fd (i.e. opetates on one fd) + */ fd_t *fd; + fd_t *fd_out; /* this is the destination fd for copy_file_range */ const char *linkname; struct iobref *iobref; struct iovec *vector; @@ -301,7 +313,17 @@ typedef struct client_args { struct gf_flock *flock; const char *volume; const char *basename; + off_t offset; + /* + * According to the man page of copy_file_range, + * the offsets for source and destination file + * are of type loff_t. But the type loff_t is + * linux specific and is actual a typedef of + * off64_t. + */ + off64_t off_in; /* used in copy_file_range for source fd */ + off64_t off_out; /* used in copy_file_range for dst fd */ int32_t mask; int32_t cmd; size_t size; diff --git a/xlators/protocol/server/src/server-common.c b/xlators/protocol/server/src/server-common.c index 25b3615506..0639ac3feb 100644 --- a/xlators/protocol/server/src/server-common.c +++ b/xlators/protocol/server/src/server-common.c @@ -541,6 +541,16 @@ server4_post_common_3iatt(server_state_t *state, gfx_common_3iatt_rsp *rsp, } void +server4_post_common_3iatt_noinode(gfx_common_3iatt_rsp *rsp, struct iatt *stbuf, + struct iatt *prebuf_dst, + struct iatt *postbuf_dst) +{ + gfx_stat_from_iattx(&rsp->stat, stbuf); + gfx_stat_from_iattx(&rsp->preparent, prebuf_dst); + gfx_stat_from_iattx(&rsp->postparent, postbuf_dst); +} + +void server4_post_common_2iatt(gfx_common_2iatt_rsp *rsp, struct iatt *prebuf, struct iatt *postbuf) { diff --git a/xlators/protocol/server/src/server-common.h b/xlators/protocol/server/src/server-common.h index 2844ee9575..6200415e30 100644 --- a/xlators/protocol/server/src/server-common.h +++ b/xlators/protocol/server/src/server-common.h @@ -192,3 +192,8 @@ void server4_post_link(server_state_t *state, gfx_common_3iatt_rsp *rsp, inode_t *inode, struct iatt *stbuf, struct iatt *pre, struct iatt *post); + +void +server4_post_common_3iatt_noinode(gfx_common_3iatt_rsp *rsp, struct iatt *stbuf, + struct iatt *prebuf_dst, + struct iatt *postbuf_dst); diff --git a/xlators/protocol/server/src/server-helpers.c b/xlators/protocol/server/src/server-helpers.c index c55a422679..8ad2d8492e 100644 --- a/xlators/protocol/server/src/server-helpers.c +++ b/xlators/protocol/server/src/server-helpers.c @@ -4948,6 +4948,8 @@ server_populate_compound_response_v2(xlator_t *this, gfx_compound_rsp *rsp, rsp_args->op_errno = gf_errno_to_error(this_args_cbk->op_errno); break; } + case GF_FOP_COPY_FILE_RANGE: + /* Not handling this fop. */ default: return ENOTSUP; } @@ -5380,6 +5382,12 @@ server_get_compound_resolve_v2(server_state_t *state, gfx_compound_req *req) memcpy(state->resolve.gfid, this_req.gfid, 16); break; } + case GF_FOP_COPY_FILE_RANGE: + /* + * Compound operations is not being used anymore and + * planned for subsequent removal. Hence not handling + * this fop here. + */ default: return ENOTSUP; } diff --git a/xlators/protocol/server/src/server-resolve.c b/xlators/protocol/server/src/server-resolve.c index 26260a5ee2..ec768acba4 100644 --- a/xlators/protocol/server/src/server-resolve.c +++ b/xlators/protocol/server/src/server-resolve.c @@ -545,14 +545,39 @@ server_resolve_fd(call_frame_t *frame) return 0; } - state->fd = gf_fd_fdptr_get(serv_ctx->fdtable, fd_no); - + /* + * With copy_file_range, there will be 2 fds to resolve. + * This same function is called to resolve both the source + * fd and the destination fd. As of now, this function does + * not have any mechanism to distinguish between the 2 fds + * being resolved except for checking the value of state->fd. + * The assumption is that, if source fd the one which is + * being resolved here, then state->fd would be NULL. If it + * is not NULL, then it is the destination fd which is being + * resolved. + * This method (provided the above assumption is true) is + * to achieve the ability to distinguish between 2 fds with + * minimum changes being done to this function. If this way + * is not correct, then more changes might be needed. + */ if (!state->fd) { - gf_msg("", GF_LOG_INFO, EBADF, PS_MSG_FD_NOT_FOUND, - "fd not " - "found in context"); - resolve->op_ret = -1; - resolve->op_errno = EBADF; + state->fd = gf_fd_fdptr_get(serv_ctx->fdtable, fd_no); + if (!state->fd) { + gf_msg("", GF_LOG_INFO, EBADF, PS_MSG_FD_NOT_FOUND, + "fd not " + "found in context"); + resolve->op_ret = -1; + resolve->op_errno = EBADF; + } + } else { + state->fd_out = gf_fd_fdptr_get(serv_ctx->fdtable, fd_no); + if (!state->fd_out) { + gf_msg("", GF_LOG_INFO, EBADF, PS_MSG_FD_NOT_FOUND, + "fd not " + "found in context"); + resolve->op_ret = -1; + resolve->op_errno = EBADF; + } } server_resolve_all(frame); diff --git a/xlators/protocol/server/src/server-rpc-fops_v2.c b/xlators/protocol/server/src/server-rpc-fops_v2.c index c5a8e48262..16570294f6 100644 --- a/xlators/protocol/server/src/server-rpc-fops_v2.c +++ b/xlators/protocol/server/src/server-rpc-fops_v2.c @@ -2259,6 +2259,64 @@ out: return 0; } +int +server4_copy_file_range_cbk(call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, + struct iatt *stbuf, struct iatt *prebuf_dst, + struct iatt *postbuf_dst, dict_t *xdata) +{ + gfx_common_3iatt_rsp rsp = { + 0, + }; + server_state_t *state = NULL; + rpcsvc_request_t *req = NULL; + char in_gfid[GF_UUID_BUF_SIZE] = {0}; + char out_gfid[GF_UUID_BUF_SIZE] = {0}; + + dict_to_xdr(xdata, &rsp.xdata); + + if (op_ret < 0) { + state = CALL_STATE(frame); + + uuid_utoa_r(state->resolve.gfid, in_gfid); + uuid_utoa_r(state->resolve2.gfid, out_gfid); + + gf_msg(this->name, fop_log_level(GF_FOP_COPY_FILE_RANGE, op_errno), + op_errno, PS_MSG_WRITE_INFO, + "%" PRId64 ": COPY_FILE_RANGE %" PRId64 " (%s), %" PRId64 + " (%s) client: %s, " + "error-xlator: %s", + frame->root->unique, state->resolve.fd_no, in_gfid, + state->resolve2.fd_no, out_gfid, STACK_CLIENT_NAME(frame->root), + STACK_ERR_XL_NAME(frame->root)); + goto out; + } + + /* + * server4_post_common_3iatt (ex: used by server4_put_cbk and some + * other cbks) also performs inode linking along with copying of 3 + * iatt structures to the response. But, for copy_file_range, linking + * of inode is not needed. Therefore a new function is used to + * construct the response using 3 iatt structures. + * @stbuf: iatt or stat of the source file (or fd) + * @prebuf_dst: iatt or stat of destination file (or fd) before the fop + * @postbuf_dst: iatt or stat of destination file (or fd) after the fop + */ + server4_post_common_3iatt_noinode(&rsp, stbuf, prebuf_dst, postbuf_dst); + +out: + rsp.op_ret = op_ret; + rsp.op_errno = gf_errno_to_error(op_errno); + + req = frame->local; + server_submit_reply(frame, req, &rsp, NULL, 0, NULL, + (xdrproc_t)xdr_gfx_common_3iatt_rsp); + + GF_FREE(rsp.xdata.pairs.pairs_val); + + return 0; +} + /* Resume function section */ int @@ -3448,6 +3506,29 @@ err: } int +server4_copy_file_range_resume(call_frame_t *frame, xlator_t *bound_xl) +{ + server_state_t *state = NULL; + + state = CALL_STATE(frame); + + if (state->resolve.op_ret != 0) + goto err; + + STACK_WIND(frame, server4_copy_file_range_cbk, bound_xl, + bound_xl->fops->copy_file_range, state->fd, state->off_in, + state->fd_out, state->off_out, state->size, state->flags, + state->xdata); + + return 0; +err: + server4_copy_file_range_cbk(frame, NULL, frame->this, state->resolve.op_ret, + state->resolve.op_errno, NULL, NULL, NULL, + NULL); + return 0; +} + +int server4_0_stat(rpcsvc_request_t *req) { server_state_t *state = NULL; @@ -6104,6 +6185,53 @@ out: return ret; } +int +server4_0_copy_file_range(rpcsvc_request_t *req) +{ + server_state_t *state = NULL; + call_frame_t *frame = NULL; + gfx_copy_file_range_req args = { + { + 0, + }, + }; + ssize_t len = 0; + int ret = -1; + int op_errno = 0; + + if (!req) + return ret; + + ret = rpc_receive_common(req, &frame, &state, &len, &args, + xdr_gfx_copy_file_range_req, + GF_FOP_COPY_FILE_RANGE); + if (ret != 0) { + goto out; + } + + state->resolve.type = RESOLVE_MUST; + state->resolve.fd_no = args.fd_in; + state->resolve2.type = RESOLVE_MUST; /*making this resolve must */ + state->resolve2.fd_no = args.fd_out; + state->off_in = args.off_in; + state->off_out = args.off_out; + state->size = args.size; + state->flags = args.flag; + memcpy(state->resolve.gfid, args.gfid1, 16); + memcpy(state->resolve2.gfid, args.gfid2, 16); + + xdr_to_dict(&args.xdata, &state->xdata); + + ret = 0; + resolve_and_resume(frame, server4_copy_file_range_resume); +out: + + if (op_errno) + SERVER_REQ_SET_ERROR(req, ret); + + return ret; +} + rpcsvc_actor_t glusterfs4_0_fop_actors[] = { [GFS3_OP_NULL] = {"NULL", GFS3_OP_NULL, server_null, NULL, 0}, [GFS3_OP_STAT] = {"STAT", GFS3_OP_STAT, server4_0_stat, NULL, 0}, @@ -6195,6 +6323,8 @@ rpcsvc_actor_t glusterfs4_0_fop_actors[] = { DRC_NA}, [GFS3_OP_NAMELINK] = {"NAMELINK", GFS3_OP_NAMELINK, server4_0_namelink, NULL, 0, DRC_NA}, + [GFS3_OP_COPY_FILE_RANGE] = {"COPY-FILE-RANGE", GFS3_OP_COPY_FILE_RANGE, + server4_0_copy_file_range, NULL, 0, DRC_NA}, }; struct rpcsvc_program glusterfs4_0_fop_prog = { diff --git a/xlators/protocol/server/src/server.h b/xlators/protocol/server/src/server.h index 2a77aba1f3..bdf98c96f1 100644 --- a/xlators/protocol/server/src/server.h +++ b/xlators/protocol/server/src/server.h @@ -180,7 +180,12 @@ struct _server_state { struct iatt stbuf; int valid; + /* + * this fd is used in all the fd based operations PLUS + * as a source fd in copy_file_range + */ fd_t *fd; + fd_t *fd_out; /* destination fd in copy_file_range */ dict_t *params; int32_t flags; int wbflags; @@ -191,6 +196,15 @@ struct _server_state { size_t size; off_t offset; + /* + * According to the man page of copy_file_range, + * the offsets for source and destination file + * are of type loff_t. But the type loff_t is + * linux specific and is actual a typedef of + * off64_t. + */ + off64_t off_in; /* source offset in copy_file_range */ + off64_t off_out; /* destination offset in copy_file_range */ mode_t mode; dev_t dev; size_t nr_count; |