diff options
| -rw-r--r-- | fs/netfs/write_collect.c | 10 | ||||
| -rw-r--r-- | fs/netfs/write_issue.c | 4 | ||||
| -rw-r--r-- | fs/splice.c | 3 | ||||
| -rw-r--r-- | include/linux/netfs.h | 1 |
4 files changed, 14 insertions, 4 deletions
diff --git a/fs/netfs/write_collect.c b/fs/netfs/write_collect.c index a968688a7323..c349867d74c3 100644 --- a/fs/netfs/write_collect.c +++ b/fs/netfs/write_collect.c @@ -433,6 +433,7 @@ reassess_streams: if (front->start + front->transferred > stream->collected_to) { stream->collected_to = front->start + front->transferred; stream->transferred = stream->collected_to - wreq->start; + stream->transferred_valid = true; notes |= MADE_PROGRESS; } if (test_bit(NETFS_SREQ_FAILED, &front->flags)) { @@ -538,6 +539,7 @@ void netfs_write_collection_worker(struct work_struct *work) struct netfs_io_request *wreq = container_of(work, struct netfs_io_request, work); struct netfs_inode *ictx = netfs_inode(wreq->inode); size_t transferred; + bool transferred_valid = false; int s; _enter("R=%x", wreq->debug_id); @@ -568,12 +570,16 @@ void netfs_write_collection_worker(struct work_struct *work) netfs_put_request(wreq, false, netfs_rreq_trace_put_work); return; } - if (stream->transferred < transferred) + if (stream->transferred_valid && + stream->transferred < transferred) { transferred = stream->transferred; + transferred_valid = true; + } } /* Okay, declare that all I/O is complete. */ - wreq->transferred = transferred; + if (transferred_valid) + wreq->transferred = transferred; trace_netfs_rreq(wreq, netfs_rreq_trace_write_done); if (wreq->io_streams[1].active && diff --git a/fs/netfs/write_issue.c b/fs/netfs/write_issue.c index bf6d507578e5..b7830a15ae40 100644 --- a/fs/netfs/write_issue.c +++ b/fs/netfs/write_issue.c @@ -115,12 +115,12 @@ struct netfs_io_request *netfs_create_write_req(struct address_space *mapping, wreq->io_streams[0].prepare_write = ictx->ops->prepare_write; wreq->io_streams[0].issue_write = ictx->ops->issue_write; wreq->io_streams[0].collected_to = start; - wreq->io_streams[0].transferred = LONG_MAX; + wreq->io_streams[0].transferred = 0; wreq->io_streams[1].stream_nr = 1; wreq->io_streams[1].source = NETFS_WRITE_TO_CACHE; wreq->io_streams[1].collected_to = start; - wreq->io_streams[1].transferred = LONG_MAX; + wreq->io_streams[1].transferred = 0; if (fscache_resources_valid(&wreq->cache_resources)) { wreq->io_streams[1].avail = true; wreq->io_streams[1].active = true; diff --git a/fs/splice.c b/fs/splice.c index 38f8c9426731..ed8177f6d620 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -744,6 +744,9 @@ iter_file_splice_write(struct pipe_inode_info *pipe, struct file *out, sd.pos = kiocb.ki_pos; if (ret <= 0) break; + WARN_ONCE(ret > sd.total_len - left, + "Splice Exceeded! ret=%zd tot=%zu left=%zu\n", + ret, sd.total_len, left); sd.num_spliced += ret; sd.total_len -= ret; diff --git a/include/linux/netfs.h b/include/linux/netfs.h index 474481ee8b7c..83d313718cd5 100644 --- a/include/linux/netfs.h +++ b/include/linux/netfs.h @@ -150,6 +150,7 @@ struct netfs_io_stream { bool active; /* T if stream is active */ bool need_retry; /* T if this stream needs retrying */ bool failed; /* T if this stream failed */ + bool transferred_valid; /* T is ->transferred is valid */ }; /* |