diff options
Diffstat (limited to 'fs/afs/yfsclient.c')
| -rw-r--r-- | fs/afs/yfsclient.c | 327 |
1 files changed, 303 insertions, 24 deletions
diff --git a/fs/afs/yfsclient.c b/fs/afs/yfsclient.c index 11571cca86c1..febf13a49f0b 100644 --- a/fs/afs/yfsclient.c +++ b/fs/afs/yfsclient.c @@ -245,12 +245,15 @@ static void xdr_decode_YFSVolSync(const __be32 **_bp, struct afs_volsync *volsync) { struct yfs_xdr_YFSVolSync *x = (void *)*_bp; - u64 creation; + u64 creation, update; if (volsync) { creation = xdr_to_u64(x->vol_creation_date); do_div(creation, 10 * 1000 * 1000); volsync->creation = creation; + update = xdr_to_u64(x->vol_update_date); + do_div(update, 10 * 1000 * 1000); + volsync->update = update; } *_bp += xdr_size(x); @@ -349,18 +352,19 @@ static int yfs_deliver_status_and_volsync(struct afs_call *call) static int yfs_deliver_fs_fetch_data64(struct afs_call *call) { struct afs_operation *op = call->op; + struct netfs_io_subrequest *subreq = op->fetch.subreq; struct afs_vnode_param *vp = &op->file[0]; - struct afs_read *req = op->fetch.req; const __be32 *bp; + size_t count_before; int ret; _enter("{%u,%zu, %zu/%llu}", call->unmarshall, call->iov_len, iov_iter_count(call->iter), - req->actual_len); + call->remaining); switch (call->unmarshall) { case 0: - req->actual_len = 0; + call->remaining = 0; afs_extract_to_tmp64(call); call->unmarshall++; fallthrough; @@ -375,38 +379,39 @@ static int yfs_deliver_fs_fetch_data64(struct afs_call *call) if (ret < 0) return ret; - req->actual_len = be64_to_cpu(call->tmp64); - _debug("DATA length: %llu", req->actual_len); + call->remaining = be64_to_cpu(call->tmp64); + _debug("DATA length: %llu", call->remaining); - if (req->actual_len == 0) + if (call->remaining == 0) goto no_more_data; - call->iter = req->iter; - call->iov_len = min(req->actual_len, req->len); + call->iter = &subreq->io_iter; + call->iov_len = min(call->remaining, subreq->len - subreq->transferred); call->unmarshall++; fallthrough; /* extract the returned data */ case 2: - _debug("extract data %zu/%llu", - iov_iter_count(call->iter), req->actual_len); + count_before = call->iov_len; + _debug("extract data %zu/%llu", count_before, call->remaining); ret = afs_extract_data(call, true); + subreq->transferred += count_before - call->iov_len; if (ret < 0) return ret; call->iter = &call->def_iter; - if (req->actual_len <= req->len) + if (call->remaining) goto no_more_data; /* Discard any excess data the server gave us */ - afs_extract_discard(call, req->actual_len - req->len); + afs_extract_discard(call, call->remaining); call->unmarshall = 3; fallthrough; case 3: _debug("extract discard %zu/%llu", - iov_iter_count(call->iter), req->actual_len - req->len); + iov_iter_count(call->iter), call->remaining); ret = afs_extract_data(call, true); if (ret < 0) @@ -431,8 +436,8 @@ static int yfs_deliver_fs_fetch_data64(struct afs_call *call) xdr_decode_YFSCallBack(&bp, call, &vp->scb); xdr_decode_YFSVolSync(&bp, &op->volsync); - req->data_version = vp->scb.status.data_version; - req->file_size = vp->scb.status.size; + if (subreq->start + subreq->transferred >= vp->scb.status.size) + __set_bit(NETFS_SREQ_HIT_EOF, &subreq->flags); call->unmarshall++; fallthrough; @@ -451,7 +456,9 @@ static int yfs_deliver_fs_fetch_data64(struct afs_call *call) static const struct afs_call_type yfs_RXYFSFetchData64 = { .name = "YFS.FetchData64", .op = yfs_FS_FetchData64, + .async_rx = afs_fetch_data_async_rx, .deliver = yfs_deliver_fs_fetch_data64, + .immediate_cancel = afs_fetch_data_immediate_cancel, .destructor = afs_flat_call_destructor, }; @@ -460,14 +467,15 @@ static const struct afs_call_type yfs_RXYFSFetchData64 = { */ void yfs_fs_fetch_data(struct afs_operation *op) { + struct netfs_io_subrequest *subreq = op->fetch.subreq; struct afs_vnode_param *vp = &op->file[0]; - struct afs_read *req = op->fetch.req; struct afs_call *call; __be32 *bp; - _enter(",%x,{%llx:%llu},%llx,%llx", + _enter(",%x,{%llx:%llu},%llx,%zx", key_serial(op->key), vp->fid.vid, vp->fid.vnode, - req->pos, req->len); + subreq->start + subreq->transferred, + subreq->len - subreq->transferred); call = afs_alloc_flat_call(op->net, &yfs_RXYFSFetchData64, sizeof(__be32) * 2 + @@ -479,17 +487,19 @@ void yfs_fs_fetch_data(struct afs_operation *op) if (!call) return afs_op_nomem(op); - req->call_debug_id = call->debug_id; + if (op->flags & AFS_OPERATION_ASYNC) + call->async = true; /* marshall the parameters */ bp = call->request; bp = xdr_encode_u32(bp, YFSFETCHDATA64); bp = xdr_encode_u32(bp, 0); /* RPC flags */ bp = xdr_encode_YFSFid(bp, &vp->fid); - bp = xdr_encode_u64(bp, req->pos); - bp = xdr_encode_u64(bp, req->len); + bp = xdr_encode_u64(bp, subreq->start + subreq->transferred); + bp = xdr_encode_u64(bp, subreq->len - subreq->transferred); yfs_check_req(call, bp); + call->fid = vp->fid; trace_afs_make_fs_call(call, &vp->fid); afs_make_op_call(op, call, GFP_NOFS); } @@ -572,6 +582,7 @@ void yfs_fs_create_file(struct afs_operation *op) bp = xdr_encode_u32(bp, yfs_LockNone); /* ViceLockType */ yfs_check_req(call, bp); + call->fid = dvp->fid; trace_afs_make_fs_call1(call, &dvp->fid, name); afs_make_op_call(op, call, GFP_NOFS); } @@ -620,6 +631,7 @@ void yfs_fs_make_dir(struct afs_operation *op) bp = xdr_encode_YFSStoreStatus(bp, &op->create.mode, &op->mtime); yfs_check_req(call, bp); + call->fid = dvp->fid; trace_afs_make_fs_call1(call, &dvp->fid, name); afs_make_op_call(op, call, GFP_NOFS); } @@ -655,8 +667,9 @@ static int yfs_deliver_fs_remove_file2(struct afs_call *call) static void yfs_done_fs_remove_file2(struct afs_call *call) { if (call->error == -ECONNABORTED && - call->abort_code == RX_INVALID_OPERATION) { - set_bit(AFS_SERVER_FL_NO_RM2, &call->server->flags); + (call->abort_code == RX_INVALID_OPERATION || + call->abort_code == RXGEN_OPCODE)) { + set_bit(AFS_SERVER_FL_NO_RM2, &call->op->server->flags); call->op->flags |= AFS_OPERATION_DOWNGRADE; } } @@ -704,6 +717,7 @@ void yfs_fs_remove_file2(struct afs_operation *op) bp = xdr_encode_name(bp, name); yfs_check_req(call, bp); + call->fid = dvp->fid; trace_afs_make_fs_call1(call, &dvp->fid, name); afs_make_op_call(op, call, GFP_NOFS); } @@ -773,6 +787,7 @@ void yfs_fs_remove_file(struct afs_operation *op) bp = xdr_encode_name(bp, name); yfs_check_req(call, bp); + call->fid = dvp->fid; trace_afs_make_fs_call1(call, &dvp->fid, name); afs_make_op_call(op, call, GFP_NOFS); } @@ -814,6 +829,7 @@ void yfs_fs_remove_dir(struct afs_operation *op) bp = xdr_encode_name(bp, name); yfs_check_req(call, bp); + call->fid = dvp->fid; trace_afs_make_fs_call1(call, &dvp->fid, name); afs_make_op_call(op, call, GFP_NOFS); } @@ -887,6 +903,7 @@ void yfs_fs_link(struct afs_operation *op) bp = xdr_encode_YFSFid(bp, &vp->fid); yfs_check_req(call, bp); + call->fid = vp->fid; trace_afs_make_fs_call1(call, &vp->fid, name); afs_make_op_call(op, call, GFP_NOFS); } @@ -968,6 +985,7 @@ void yfs_fs_symlink(struct afs_operation *op) bp = xdr_encode_YFSStoreStatus(bp, &mode, &op->mtime); yfs_check_req(call, bp); + call->fid = dvp->fid; trace_afs_make_fs_call1(call, &dvp->fid, name); afs_make_op_call(op, call, GFP_NOFS); } @@ -1024,6 +1042,9 @@ void yfs_fs_rename(struct afs_operation *op) _enter(""); + if (!test_bit(AFS_SERVER_FL_NO_RENAME2, &op->server->flags)) + return yfs_fs_rename_replace(op); + call = afs_alloc_flat_call(op->net, &yfs_RXYFSRename, sizeof(__be32) + sizeof(struct yfs_xdr_RPCFlags) + @@ -1047,6 +1068,253 @@ void yfs_fs_rename(struct afs_operation *op) bp = xdr_encode_name(bp, new_name); yfs_check_req(call, bp); + call->fid = orig_dvp->fid; + trace_afs_make_fs_call2(call, &orig_dvp->fid, orig_name, new_name); + afs_make_op_call(op, call, GFP_NOFS); +} + +/* + * Deliver reply data to a YFS.Rename_NoReplace operation. This does not + * return the status of a displaced target inode as there cannot be one. + */ +static int yfs_deliver_fs_rename_1(struct afs_call *call) +{ + struct afs_operation *op = call->op; + struct afs_vnode_param *orig_dvp = &op->file[0]; + struct afs_vnode_param *new_dvp = &op->file[1]; + struct afs_vnode_param *old_vp = &op->more_files[0]; + const __be32 *bp; + int ret; + + _enter("{%u}", call->unmarshall); + + ret = afs_transfer_reply(call); + if (ret < 0) + return ret; + + bp = call->buffer; + /* If the two dirs are the same, we have two copies of the same status + * report, so we just decode it twice. + */ + xdr_decode_YFSFetchStatus(&bp, call, &orig_dvp->scb); + xdr_decode_YFSFid(&bp, &old_vp->fid); + xdr_decode_YFSFetchStatus(&bp, call, &old_vp->scb); + xdr_decode_YFSFetchStatus(&bp, call, &new_dvp->scb); + xdr_decode_YFSVolSync(&bp, &op->volsync); + _leave(" = 0 [done]"); + return 0; +} + +/* + * Deliver reply data to a YFS.Rename_Replace or a YFS.Rename_Exchange + * operation. These return the status of the displaced target inode if there + * was one. + */ +static int yfs_deliver_fs_rename_2(struct afs_call *call) +{ + struct afs_operation *op = call->op; + struct afs_vnode_param *orig_dvp = &op->file[0]; + struct afs_vnode_param *new_dvp = &op->file[1]; + struct afs_vnode_param *old_vp = &op->more_files[0]; + struct afs_vnode_param *new_vp = &op->more_files[1]; + const __be32 *bp; + int ret; + + _enter("{%u}", call->unmarshall); + + ret = afs_transfer_reply(call); + if (ret < 0) + return ret; + + bp = call->buffer; + /* If the two dirs are the same, we have two copies of the same status + * report, so we just decode it twice. + */ + xdr_decode_YFSFetchStatus(&bp, call, &orig_dvp->scb); + xdr_decode_YFSFid(&bp, &old_vp->fid); + xdr_decode_YFSFetchStatus(&bp, call, &old_vp->scb); + xdr_decode_YFSFetchStatus(&bp, call, &new_dvp->scb); + xdr_decode_YFSFid(&bp, &new_vp->fid); + xdr_decode_YFSFetchStatus(&bp, call, &new_vp->scb); + xdr_decode_YFSVolSync(&bp, &op->volsync); + _leave(" = 0 [done]"); + return 0; +} + +static void yfs_done_fs_rename_replace(struct afs_call *call) +{ + if (call->error == -ECONNABORTED && + (call->abort_code == RX_INVALID_OPERATION || + call->abort_code == RXGEN_OPCODE)) { + set_bit(AFS_SERVER_FL_NO_RENAME2, &call->op->server->flags); + call->op->flags |= AFS_OPERATION_DOWNGRADE; + } +} + +/* + * YFS.Rename_Replace operation type + */ +static const struct afs_call_type yfs_RXYFSRename_Replace = { + .name = "FS.Rename_Replace", + .op = yfs_FS_Rename_Replace, + .deliver = yfs_deliver_fs_rename_2, + .done = yfs_done_fs_rename_replace, + .destructor = afs_flat_call_destructor, +}; + +/* + * YFS.Rename_NoReplace operation type + */ +static const struct afs_call_type yfs_RXYFSRename_NoReplace = { + .name = "FS.Rename_NoReplace", + .op = yfs_FS_Rename_NoReplace, + .deliver = yfs_deliver_fs_rename_1, + .destructor = afs_flat_call_destructor, +}; + +/* + * YFS.Rename_Exchange operation type + */ +static const struct afs_call_type yfs_RXYFSRename_Exchange = { + .name = "FS.Rename_Exchange", + .op = yfs_FS_Rename_Exchange, + .deliver = yfs_deliver_fs_rename_2, + .destructor = afs_flat_call_destructor, +}; + +/* + * Rename a file or directory, replacing the target if it exists. The status + * of a displaced target is returned. + */ +void yfs_fs_rename_replace(struct afs_operation *op) +{ + struct afs_vnode_param *orig_dvp = &op->file[0]; + struct afs_vnode_param *new_dvp = &op->file[1]; + const struct qstr *orig_name = &op->dentry->d_name; + const struct qstr *new_name = &op->dentry_2->d_name; + struct afs_call *call; + __be32 *bp; + + _enter(""); + + call = afs_alloc_flat_call(op->net, &yfs_RXYFSRename_Replace, + sizeof(__be32) + + sizeof(struct yfs_xdr_RPCFlags) + + sizeof(struct yfs_xdr_YFSFid) + + xdr_strlen(orig_name->len) + + sizeof(struct yfs_xdr_YFSFid) + + xdr_strlen(new_name->len), + sizeof(struct yfs_xdr_YFSFetchStatus) + + sizeof(struct yfs_xdr_YFSFid) + + sizeof(struct yfs_xdr_YFSFetchStatus) + + sizeof(struct yfs_xdr_YFSFetchStatus) + + sizeof(struct yfs_xdr_YFSFid) + + sizeof(struct yfs_xdr_YFSFetchStatus) + + sizeof(struct yfs_xdr_YFSVolSync)); + if (!call) + return afs_op_nomem(op); + + /* Marshall the parameters. */ + bp = call->request; + bp = xdr_encode_u32(bp, YFSRENAME_REPLACE); + bp = xdr_encode_u32(bp, 0); /* RPC flags */ + bp = xdr_encode_YFSFid(bp, &orig_dvp->fid); + bp = xdr_encode_name(bp, orig_name); + bp = xdr_encode_YFSFid(bp, &new_dvp->fid); + bp = xdr_encode_name(bp, new_name); + yfs_check_req(call, bp); + + call->fid = orig_dvp->fid; + trace_afs_make_fs_call2(call, &orig_dvp->fid, orig_name, new_name); + afs_make_op_call(op, call, GFP_NOFS); +} + +/* + * Rename a file or directory, failing if the target dirent exists. + */ +void yfs_fs_rename_noreplace(struct afs_operation *op) +{ + struct afs_vnode_param *orig_dvp = &op->file[0]; + struct afs_vnode_param *new_dvp = &op->file[1]; + const struct qstr *orig_name = &op->dentry->d_name; + const struct qstr *new_name = &op->dentry_2->d_name; + struct afs_call *call; + __be32 *bp; + + _enter(""); + + call = afs_alloc_flat_call(op->net, &yfs_RXYFSRename_NoReplace, + sizeof(__be32) + + sizeof(struct yfs_xdr_RPCFlags) + + sizeof(struct yfs_xdr_YFSFid) + + xdr_strlen(orig_name->len) + + sizeof(struct yfs_xdr_YFSFid) + + xdr_strlen(new_name->len), + sizeof(struct yfs_xdr_YFSFetchStatus) + + sizeof(struct yfs_xdr_YFSFid) + + sizeof(struct yfs_xdr_YFSFetchStatus) + + sizeof(struct yfs_xdr_YFSFetchStatus) + + sizeof(struct yfs_xdr_YFSVolSync)); + if (!call) + return afs_op_nomem(op); + + /* Marshall the parameters. */ + bp = call->request; + bp = xdr_encode_u32(bp, YFSRENAME_NOREPLACE); + bp = xdr_encode_u32(bp, 0); /* RPC flags */ + bp = xdr_encode_YFSFid(bp, &orig_dvp->fid); + bp = xdr_encode_name(bp, orig_name); + bp = xdr_encode_YFSFid(bp, &new_dvp->fid); + bp = xdr_encode_name(bp, new_name); + yfs_check_req(call, bp); + + call->fid = orig_dvp->fid; + trace_afs_make_fs_call2(call, &orig_dvp->fid, orig_name, new_name); + afs_make_op_call(op, call, GFP_NOFS); +} + +/* + * Exchange a pair of files directories. + */ +void yfs_fs_rename_exchange(struct afs_operation *op) +{ + struct afs_vnode_param *orig_dvp = &op->file[0]; + struct afs_vnode_param *new_dvp = &op->file[1]; + const struct qstr *orig_name = &op->dentry->d_name; + const struct qstr *new_name = &op->dentry_2->d_name; + struct afs_call *call; + __be32 *bp; + + _enter(""); + + call = afs_alloc_flat_call(op->net, &yfs_RXYFSRename_Exchange, + sizeof(__be32) + + sizeof(struct yfs_xdr_RPCFlags) + + sizeof(struct yfs_xdr_YFSFid) + + xdr_strlen(orig_name->len) + + sizeof(struct yfs_xdr_YFSFid) + + xdr_strlen(new_name->len), + sizeof(struct yfs_xdr_YFSFetchStatus) + + sizeof(struct yfs_xdr_YFSFid) + + sizeof(struct yfs_xdr_YFSFetchStatus) + + sizeof(struct yfs_xdr_YFSFetchStatus) + + sizeof(struct yfs_xdr_YFSFid) + + sizeof(struct yfs_xdr_YFSFetchStatus) + + sizeof(struct yfs_xdr_YFSVolSync)); + if (!call) + return afs_op_nomem(op); + + /* Marshall the parameters. */ + bp = call->request; + bp = xdr_encode_u32(bp, YFSRENAME_EXCHANGE); + bp = xdr_encode_u32(bp, 0); /* RPC flags */ + bp = xdr_encode_YFSFid(bp, &orig_dvp->fid); + bp = xdr_encode_name(bp, orig_name); + bp = xdr_encode_YFSFid(bp, &new_dvp->fid); + bp = xdr_encode_name(bp, new_name); + yfs_check_req(call, bp); + + call->fid = orig_dvp->fid; trace_afs_make_fs_call2(call, &orig_dvp->fid, orig_name, new_name); afs_make_op_call(op, call, GFP_NOFS); } @@ -1102,6 +1370,7 @@ void yfs_fs_store_data(struct afs_operation *op) bp = xdr_encode_u64(bp, op->store.i_size); yfs_check_req(call, bp); + call->fid = vp->fid; trace_afs_make_fs_call(call, &vp->fid); afs_make_op_call(op, call, GFP_NOFS); } @@ -1158,6 +1427,7 @@ static void yfs_fs_setattr_size(struct afs_operation *op) bp = xdr_encode_u64(bp, attr->ia_size); /* new file length */ yfs_check_req(call, bp); + call->fid = vp->fid; trace_afs_make_fs_call(call, &vp->fid); afs_make_op_call(op, call, GFP_NOFS); } @@ -1196,6 +1466,7 @@ void yfs_fs_setattr(struct afs_operation *op) bp = xdr_encode_YFS_StoreStatus(bp, attr); yfs_check_req(call, bp); + call->fid = vp->fid; trace_afs_make_fs_call(call, &vp->fid); afs_make_op_call(op, call, GFP_NOFS); } @@ -1366,6 +1637,7 @@ void yfs_fs_get_volume_status(struct afs_operation *op) bp = xdr_encode_u64(bp, vp->fid.vid); yfs_check_req(call, bp); + call->fid = vp->fid; trace_afs_make_fs_call(call, &vp->fid); afs_make_op_call(op, call, GFP_NOFS); } @@ -1430,6 +1702,7 @@ void yfs_fs_set_lock(struct afs_operation *op) bp = xdr_encode_u32(bp, op->lock.type); yfs_check_req(call, bp); + call->fid = vp->fid; trace_afs_make_fs_calli(call, &vp->fid, op->lock.type); afs_make_op_call(op, call, GFP_NOFS); } @@ -1460,6 +1733,7 @@ void yfs_fs_extend_lock(struct afs_operation *op) bp = xdr_encode_YFSFid(bp, &vp->fid); yfs_check_req(call, bp); + call->fid = vp->fid; trace_afs_make_fs_call(call, &vp->fid); afs_make_op_call(op, call, GFP_NOFS); } @@ -1490,6 +1764,7 @@ void yfs_fs_release_lock(struct afs_operation *op) bp = xdr_encode_YFSFid(bp, &vp->fid); yfs_check_req(call, bp); + call->fid = vp->fid; trace_afs_make_fs_call(call, &vp->fid); afs_make_op_call(op, call, GFP_NOFS); } @@ -1556,6 +1831,7 @@ void yfs_fs_fetch_status(struct afs_operation *op) bp = xdr_encode_YFSFid(bp, &vp->fid); yfs_check_req(call, bp); + call->fid = vp->fid; trace_afs_make_fs_call(call, &vp->fid); afs_make_op_call(op, call, GFP_NOFS); } @@ -1736,6 +2012,7 @@ void yfs_fs_inline_bulk_status(struct afs_operation *op) bp = xdr_encode_YFSFid(bp, &op->more_files[i].fid); yfs_check_req(call, bp); + call->fid = vp->fid; trace_afs_make_fs_call(call, &vp->fid); afs_make_op_call(op, call, GFP_NOFS); } @@ -1898,6 +2175,7 @@ void yfs_fs_fetch_opaque_acl(struct afs_operation *op) bp = xdr_encode_YFSFid(bp, &vp->fid); yfs_check_req(call, bp); + call->fid = vp->fid; trace_afs_make_fs_call(call, &vp->fid); afs_make_op_call(op, call, GFP_KERNEL); } @@ -1948,6 +2226,7 @@ void yfs_fs_store_opaque_acl2(struct afs_operation *op) bp += size / sizeof(__be32); yfs_check_req(call, bp); + call->fid = vp->fid; trace_afs_make_fs_call(call, &vp->fid); afs_make_op_call(op, call, GFP_KERNEL); } |
