Path device fds were changed to be opened read/write when the
mpathpersist code was added. However, I have talked with Vijay, and
this doesn't appear to be necessary for mpathpersist to work correctly.
If the path fds are opened read/write, when the are closed a change
uevent is triggered, which was causing problems during shutdown with
LVM on top of multipath devices. This patch reverts them to being read-only
again.
Signed-off-by: Benjamin Marzinski <bmarzins@xxxxxxxxxx>
---
libmultipath/discovery.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
index 831cfef..8b6f74d 100644
--- a/libmultipath/discovery.c
+++ b/libmultipath/discovery.c
@@ -886,7 +886,7 @@ pathinfo (struct path *pp, vector hwtable, int mask)
* fetch info not available through sysfs
*/
if (pp->fd < 0)
- pp->fd = open(udev_device_get_devnode(pp->udev), O_RDWR);
+ pp->fd = open(udev_device_get_devnode(pp->udev), O_RDONLY);
if (pp->fd < 0) {
condlog(4, "Couldn't open node for %s: %s",
--
1.8.0
--
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