From cbf5c1d7a2286fa1cf548c0678b3b0bf13bcda7e Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Mon, 16 Apr 2007 12:56:00 +0200 Subject: [PATCH] Warn more gently if the kernel is too old for io scheduler switching Signed-off-by: Jens Axboe --- fio.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fio.c b/fio.c index edc6b495..160d5335 100644 --- a/fio.c +++ b/fio.c @@ -662,7 +662,11 @@ static int switch_ioscheduler(struct thread_data *td) f = fopen(tmp, "r+"); if (!f) { - td_verror(td, errno, "fopen"); + if (errno == ENOENT) { + log_err("fio: os or kernel doesn't support IO scheduler switching\n"); + return 0; + } + td_verror(td, errno, "fopen iosched"); return 1; } -- 2.25.1