diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfs/internal.h | 1 | ||||
| -rw-r--r-- | fs/nfs/nfs42proc.c | 21 | ||||
| -rw-r--r-- | fs/nfs/nfs42xdr.c | 22 | ||||
| -rw-r--r-- | fs/nfs/write.c | 30 |
4 files changed, 35 insertions, 39 deletions
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 31b26cf1b476..e9b4c3320e37 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -495,7 +495,6 @@ void nfs_mark_request_commit(struct nfs_page *req, u32 ds_commit_idx); int nfs_write_need_commit(struct nfs_pgio_header *); void nfs_writeback_update_inode(struct nfs_pgio_header *hdr); -int nfs_commit_file(struct file *file, struct nfs_write_verifier *verf); int nfs_generic_commit_list(struct inode *inode, struct list_head *head, int how, struct nfs_commit_info *cinfo); void nfs_retry_commit(struct list_head *page_list, diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c index 87f5b7b971ca..929d09a5310a 100644 --- a/fs/nfs/nfs42proc.c +++ b/fs/nfs/nfs42proc.c @@ -167,23 +167,29 @@ static ssize_t _nfs42_proc_copy(struct file *src, if (status) return status; + res->commit_res.verf = kzalloc(sizeof(struct nfs_writeverf), GFP_NOFS); + if (!res->commit_res.verf) + return -ENOMEM; status = nfs4_call_sync(server->client, server, &msg, &args->seq_args, &res->seq_res, 0); if (status == -ENOTSUPP) server->caps &= ~NFS_CAP_COPY; if (status) - return status; + goto out; - if (res->write_res.verifier.committed != NFS_FILE_SYNC) { - status = nfs_commit_file(dst, &res->write_res.verifier.verifier); - if (status) - return status; + if (!nfs_write_verifier_cmp(&res->write_res.verifier.verifier, + &res->commit_res.verf->verifier)) { + status = -EAGAIN; + goto out; } truncate_pagecache_range(dst_inode, pos_dst, pos_dst + res->write_res.count); - return res->write_res.count; + status = res->write_res.count; +out: + kfree(res->commit_res.verf); + return status; } ssize_t nfs42_proc_copy(struct file *src, loff_t pos_src, @@ -240,6 +246,9 @@ ssize_t nfs42_proc_copy(struct file *src, loff_t pos_src, if (err == -ENOTSUPP) { err = -EOPNOTSUPP; break; + } if (err == -EAGAIN) { + dst_exception.retry = 1; + continue; } err2 = nfs4_handle_exception(server, err, &src_exception); diff --git a/fs/nfs/nfs42xdr.c b/fs/nfs/nfs42xdr.c index 6c7296454bbc..528362f69cc1 100644 --- a/fs/nfs/nfs42xdr.c +++ b/fs/nfs/nfs42xdr.c @@ -66,12 +66,14 @@ encode_putfh_maxsz + \ encode_savefh_maxsz + \ encode_putfh_maxsz + \ - encode_copy_maxsz) + encode_copy_maxsz + \ + encode_commit_maxsz) #define NFS4_dec_copy_sz (compound_decode_hdr_maxsz + \ decode_putfh_maxsz + \ decode_savefh_maxsz + \ decode_putfh_maxsz + \ - decode_copy_maxsz) + decode_copy_maxsz + \ + decode_commit_maxsz) #define NFS4_enc_deallocate_sz (compound_encode_hdr_maxsz + \ encode_putfh_maxsz + \ encode_deallocate_maxsz + \ @@ -222,6 +224,18 @@ static void nfs4_xdr_enc_allocate(struct rpc_rqst *req, encode_nops(&hdr); } +static void encode_copy_commit(struct xdr_stream *xdr, + struct nfs42_copy_args *args, + struct compound_hdr *hdr) +{ + __be32 *p; + + encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr); + p = reserve_space(xdr, 12); + p = xdr_encode_hyper(p, args->dst_pos); + *p = cpu_to_be32(args->count); +} + /* * Encode COPY request */ @@ -239,6 +253,7 @@ static void nfs4_xdr_enc_copy(struct rpc_rqst *req, encode_savefh(xdr, &hdr); encode_putfh(xdr, args->dst_fh, &hdr); encode_copy(xdr, args, &hdr); + encode_copy_commit(xdr, args, &hdr); encode_nops(&hdr); } @@ -481,6 +496,9 @@ static int nfs4_xdr_dec_copy(struct rpc_rqst *rqstp, if (status) goto out; status = decode_copy(xdr, res); + if (status) + goto out; + status = decode_commit(xdr, &res->commit_res); out: return status; } diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 59e21cc0a266..85bfa416fcc8 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -1742,36 +1742,6 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how, data->mds_ops, how, 0); } -int nfs_commit_file(struct file *file, struct nfs_write_verifier *verf) -{ - struct inode *inode = file_inode(file); - struct nfs_open_context *open; - struct nfs_commit_info cinfo; - struct nfs_page *req; - int ret; - - open = get_nfs_open_context(nfs_file_open_context(file)); - req = nfs_create_request(open, NULL, NULL, 0, i_size_read(inode)); - if (IS_ERR(req)) { - ret = PTR_ERR(req); - goto out_put; - } - - nfs_init_cinfo_from_inode(&cinfo, inode); - - memcpy(&req->wb_verf, verf, sizeof(struct nfs_write_verifier)); - nfs_request_add_commit_list(req, &cinfo); - ret = nfs_commit_inode(inode, FLUSH_SYNC); - if (ret > 0) - ret = 0; - - nfs_free_request(req); -out_put: - put_nfs_open_context(open); - return ret; -} -EXPORT_SYMBOL_GPL(nfs_commit_file); - /* * COMMIT call returned */ |