diff --git a/fs/splice.c b/fs/splice.c index 60aed8de21f8..a7d59b2f1804 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -751,8 +751,18 @@ iter_file_splice_write(struct pipe_inode_info *pipe, struct file *out, /* dismiss the fully eaten buffers, adjust the partial one */ tail = pipe->tail; - while (ret) { + while (ret > 0) { struct pipe_buffer *buf = &pipe->bufs[tail & mask]; + printk("ret: %d, nbufs: %d, buf len: %u, m: %u, t: %u,ring size: %u, %s\n", ret, nbufs, buf->len, mask, tail, pipe->ring_size, __func__); + if (pipe->ring_size <= mask) { + ret = -EPIPE; + printk("oooh, %s\n", __func__); + break; + } + if (!buf->len) { + tail++; + continue; + } if (ret >= buf->len) { ret -= buf->len; buf->len = 0;