[Qemu-devel] [PATCH v3 2/4] memfd: always check for MFD_CLOEXEC

From: Ilya Maximets <i.maximets@samsung.com>
To: "Marc-André Lureau" <marcandre.lureau@redhat.com>,
	"Eduardo Habkost" <ehabkost@redhat.com>
Cc: qemu-devel@nongnu.org, "Paolo Bonzini" <pbonzini@redhat.com>,
	"Igor Mammedov" <imammedo@redhat.com>,
	"Gerd Hoffmann" <kraxel@redhat.com>,
	"Daniel P. Berrangé" <berrange@redhat.com>,
	"Ilya Maximets" <i.maximets@samsung.com>
Subject: [Qemu-devel] [PATCH v3 2/4] memfd: always check for MFD_CLOEXEC
Date: Mon, 11 Mar 2019 16:58:48 +0300	[thread overview]
Message-ID: <20190311135850.6537-3-i.maximets@samsung.com> (raw)
In-Reply-To: <20190311135850.6537-1-i.maximets@samsung.com>

QEMU always sets this flag unconditionally. We need to
check if it's supported.

Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
 util/memfd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/util/memfd.c b/util/memfd.c
index 8debd0d037..d74ce4d793 100644
--- a/util/memfd.c
+++ b/util/memfd.c
@@ -188,7 +188,7 @@ bool qemu_memfd_alloc_check(void)
 bool qemu_memfd_check(unsigned int flags)
 {
 #ifdef CONFIG_LINUX
-    int mfd = memfd_create("test", flags);
+    int mfd = memfd_create("test", flags | MFD_CLOEXEC);
 
     if (mfd >= 0) {
         close(mfd);
-- 
2.17.1
