[PATCH] resctrl: Do not open directory for writing
When preparing for the removal of GNULIB commit 18dca21a32e9 removed the
unneeded O_DIRECTORY, but unfortunately started opening the directory for
writing which fails every time for a directory. There is also no need for that
as flock() works on O_RDONLY file descriptor as well, even for LOCK_EX.
https://bugzilla.redhat.com/1852741
Signed-off-by: Martin Kletzander <mkletzan(a)redhat.com>
---
src/util/virresctrl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/util/virresctrl.c b/src/util/virresctrl.c
index 33044da3a1ef..f6da13645ae3 100644
--- a/src/util/virresctrl.c
+++ b/src/util/virresctrl.c
@@ -456,7 +456,7 @@ VIR_ONCE_GLOBAL_INIT(virResctrl);
static int
virResctrlLockWrite(void)
{
- int fd = open(SYSFS_RESCTRL_PATH, O_RDWR | O_CLOEXEC);
+ int fd = open(SYSFS_RESCTRL_PATH, O_RDONLY | O_CLOEXEC);
if (fd < 0) {
virReportSystemError(errno, "%s", _("Cannot open resctrl"));
--
2.27.0