|
 |
923a60 |
From d5ab3fdc9bf9353478e7c0987b3830f14bbdefae Mon Sep 17 00:00:00 2001
|
|
|
923a60 |
From: Michal Sekletar <msekleta@redhat.com>
|
|
|
923a60 |
Date: Thu, 22 Jun 2017 14:26:39 +0200
|
|
|
923a60 |
Subject: [PATCH] core: unset sysfs path after transition to dead state
|
|
|
923a60 |
|
|
|
923a60 |
Device is gone and most likely it will get garbage collected. However in
|
|
|
923a60 |
cases when it doesn't get gc'ed (because it is referenced by some
|
|
|
923a60 |
other unit, e.g. mount from fstab) we need to unset sysfs. This is
|
|
|
923a60 |
because when device appears next time, possibly, with different sysfs
|
|
|
923a60 |
path we need to update the sysfs path. Current code could end up caching
|
|
|
923a60 |
stale sysfs path forever.
|
|
|
923a60 |
|
|
|
923a60 |
In reality this is not a problem for normal disks (unless you swap them
|
|
|
923a60 |
during system runtime). However this issue causes failures to mount
|
|
|
923a60 |
filesystems on LVM where sysfs path depends on activation
|
|
|
923a60 |
order (i.e. logical volumes from volume group that is activated first
|
|
|
923a60 |
get assigned lower dm-X numbers and corresponding syspaths).
|
|
|
923a60 |
|
|
|
923a60 |
Fixes #6126
|
|
|
923a60 |
|
|
|
923a60 |
(cherry picked from commit 0e139cac0318de09e6f4c1a4fc61388f7e541ebd)
|
|
|
923a60 |
|
|
|
923a60 |
Resolves: #1408916
|
|
|
923a60 |
---
|
|
|
923a60 |
src/core/device.c | 6 +++++-
|
|
|
923a60 |
1 file changed, 5 insertions(+), 1 deletion(-)
|
|
|
923a60 |
|
|
|
923a60 |
diff --git a/src/core/device.c b/src/core/device.c
|
|
|
923a60 |
index befbae83fd..63a04bdd3c 100644
|
|
|
923a60 |
--- a/src/core/device.c
|
|
|
923a60 |
+++ b/src/core/device.c
|
|
|
923a60 |
@@ -474,12 +474,16 @@ static void device_update_found_one(Device *d, bool add, DeviceFound found, bool
|
|
|
923a60 |
* now referenced by the kernel, then we assume the
|
|
|
923a60 |
* kernel knows it now, and udev might soon too. */
|
|
|
923a60 |
device_set_state(d, DEVICE_TENTATIVE);
|
|
|
923a60 |
- else
|
|
|
923a60 |
+ else {
|
|
|
923a60 |
/* If nobody sees the device, or if the device was
|
|
|
923a60 |
* previously seen by udev and now is only referenced
|
|
|
923a60 |
* from the kernel, then we consider the device is
|
|
|
923a60 |
* gone, the kernel just hasn't noticed it yet. */
|
|
|
923a60 |
+
|
|
|
923a60 |
device_set_state(d, DEVICE_DEAD);
|
|
|
923a60 |
+ device_unset_sysfs(d);
|
|
|
923a60 |
+ }
|
|
|
923a60 |
+
|
|
|
923a60 |
}
|
|
|
923a60 |
|
|
|
923a60 |
static int device_update_found_by_sysfs(Manager *m, const char *sysfs, bool add, DeviceFound found, bool now) {
|