From: Jens Axboe <jens.axboe@oracle.com>
Date: Mon, 9 Jun 2008 17:25:49 +0000 (+0200)
Subject: splice: if splicing fails with EINVAL, it's most likely missing fs support
X-Git-Tag: fio-1.22-rc1~35
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=0aa417a9515f9dc17523c1870f6409370e94ca19

splice: if splicing fails with EINVAL, it's most likely missing fs support

So tell the user in more direct terms.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

diff --git a/engines/splice.c b/engines/splice.c
index 2753bfa0..03bc7ffc 100644
--- a/engines/splice.c
+++ b/engines/splice.c
@@ -232,8 +232,12 @@ static int fio_spliceio_queue(struct thread_data *td, struct io_u *io_u)
 			io_u->error = errno;
 	}
 
-	if (io_u->error)
+	if (io_u->error) {
 		td_verror(td, io_u->error, "xfer");
+		if (io_u->error == EINVAL)
+			log_err("fio: looks like splice doesn't work on this"
+					" file system\n");
+	}
 
 	return FIO_Q_COMPLETED;
 }