From: Sitsofe Wheeler <sitsofe@yahoo.com>
Date: Thu, 27 Jul 2017 04:50:41 +0000 (+0100)
Subject: init: force fallocate_mode to none when fallocate is unsupported
X-Git-Tag: fio-3.0~27^2~1
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=d27f75b8ac13a4056cc8ef09b56de9dd184a2ad1

init: force fallocate_mode to none when fallocate is unsupported

Commit 2c3e17be ("filesetup: add native fallocate") broke fio on Windows
because fallocate_mode wound up being set to 0 on platforms without any
type of fallocate. Work around this by forcing fallocate_mode to
FIO_FALLOCATE_NONE on such platforms.

This should address the issue mention in the mail
http://www.spinics.net/lists/fio/msg06085.html ("The commit 'filesetup:
add native fallocate' breaks on Cygwin").

Signed-off-by: Sitsofe Wheeler <sitsofe@yahoo.com>
---

diff --git a/init.c b/init.c
index 90cc0bcf..52560ed3 100644
--- a/init.c
+++ b/init.c
@@ -781,6 +781,11 @@ static int fixup_options(struct thread_data *td)
 			o->unit_base = 8;
 	}
 
+#if !defined(CONFIG_POSIX_FALLOCATE) && !defined(FIO_HAVE_NATIVE_FALLOCATE)
+	/* Platform doesn't support fallocate so force set it to none */
+	o->fallocate_mode = FIO_FALLOCATE_NONE;
+#endif
+
 #ifndef CONFIG_FDATASYNC
 	if (o->fdatasync_blocks) {
 		log_info("fio: this platform does not support fdatasync()"