systemd/shutdown-improvements.patch

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From 2569a5ce16638d99f1ebaaa7774d183496d8b8e8 Mon Sep 17 00:00:00 2001
From: Michal Schmidt <mschmidt@redhat.com>
Date: Fri, 7 Dec 2012 17:28:30 +0100
Subject: [PATCH] shutdown: downgrade a warning
All messages of the kind "not all done, %d left" are log_info, except
the one for DM devices. Make it info too.
---
src/core/shutdown.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/core/shutdown.c b/src/core/shutdown.c
index 4bb4b4d..192746a 100644
--- a/src/core/shutdown.c
+++ b/src/core/shutdown.c
@@ -233,7 +233,7 @@ int main(int argc, char *argv[]) {
if (r == 0)
need_dm_detach = false;
else if (r > 0)
- log_warning("Not all DM devices detached, %d left.", r);
+ log_info("Not all DM devices detached, %d left.", r);
else
log_error("Failed to detach DM devices: %s", strerror(-r));
}
--
1.7.10.4
From c678406681d32d56730b9e9c002d5500d7aa7f8b Mon Sep 17 00:00:00 2001
From: Michal Schmidt <mschmidt@redhat.com>
Date: Fri, 7 Dec 2012 17:34:21 +0100
Subject: [PATCH] umount: fix check for DM changed
delete_dm() returns 0 on success. The check for "r > 0" was likely
a copy&paste error from the loopback code where "r > 0" makes sense.
---
src/core/umount.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/core/umount.c b/src/core/umount.c
index f6c520e..8776807 100644
--- a/src/core/umount.c
+++ b/src/core/umount.c
@@ -536,7 +536,7 @@ static int dm_points_list_detach(MountPoint **head, bool *changed) {
if ((r = delete_dm(m->devnum)) >= 0) {
- if (r > 0 && changed)
+ if (changed)
*changed = true;
mount_point_free(head, m);
--
1.7.10.4
From bce93b7ac7642426039863493694d8c12812e2a7 Mon Sep 17 00:00:00 2001
From: Michal Schmidt <mschmidt@redhat.com>
Date: Fri, 7 Dec 2012 17:44:50 +0100
Subject: [PATCH] shutdown, umount: logging improvements
In bugreports about hangs during the late shutdown we are often missing
important information - what were we trying to unmount/detach when it hung.
Instead of printing what we successfully unmounted, print what we are
going to unmount/detach. And add messages to mark the completion of
categories (mount/swap/loop/DM).
---
src/core/shutdown.c | 20 ++++++++++++--------
src/core/umount.c | 15 +++++++++------
2 files changed, 21 insertions(+), 14 deletions(-)
diff --git a/src/core/shutdown.c b/src/core/shutdown.c
index 192746a..6783008 100644
--- a/src/core/shutdown.c
+++ b/src/core/shutdown.c
@@ -197,9 +197,10 @@ int main(int argc, char *argv[]) {
if (need_umount) {
log_info("Unmounting file systems.");
r = umount_all(&changed);
- if (r == 0)
+ if (r == 0) {
need_umount = false;
- else if (r > 0)
+ log_info("All filesystems unmounted.");
+ } else if (r > 0)
log_info("Not all file systems unmounted, %d left.", r);
else
log_error("Failed to unmount file systems: %s", strerror(-r));
@@ -208,9 +209,10 @@ int main(int argc, char *argv[]) {
if (need_swapoff) {
log_info("Disabling swaps.");
r = swapoff_all(&changed);
- if (r == 0)
+ if (r == 0) {
need_swapoff = false;
- else if (r > 0)
+ log_info("All swaps disabled.");
+ } else if (r > 0)
log_info("Not all swaps are turned off, %d left.", r);
else
log_error("Failed to turn off swaps: %s", strerror(-r));
@@ -219,9 +221,10 @@ int main(int argc, char *argv[]) {
if (need_loop_detach) {
log_info("Detaching loop devices.");
r = loopback_detach_all(&changed);
- if (r == 0)
+ if (r == 0) {
need_loop_detach = false;
- else if (r > 0)
+ log_info("All loop devices detached.");
+ } else if (r > 0)
log_info("Not all loop devices detached, %d left.", r);
else
log_error("Failed to detach loop devices: %s", strerror(-r));
@@ -230,9 +233,10 @@ int main(int argc, char *argv[]) {
if (need_dm_detach) {
log_info("Detaching DM devices.");
r = dm_detach_all(&changed);
- if (r == 0)
+ if (r == 0) {
need_dm_detach = false;
- else if (r > 0)
+ log_info("All DM devices detached.");
+ } else if (r > 0)
log_info("Not all DM devices detached, %d left.", r);
else
log_error("Failed to detach DM devices: %s", strerror(-r));
diff --git a/src/core/umount.c b/src/core/umount.c
index 8776807..fd90d9f 100644
--- a/src/core/umount.c
+++ b/src/core/umount.c
@@ -443,8 +443,8 @@ static int mount_points_list_umount(MountPoint **head, bool *changed, bool log_e
continue;
/* Trying to umount. Forcing to umount if busy (only for NFS mounts) */
+ log_info("Unmounting %s.", m->path);
if (umount2(m->path, MNT_FORCE) == 0) {
- log_info("Unmounted %s.", m->path);
if (changed)
*changed = true;
@@ -465,6 +465,7 @@ static int swap_points_list_off(MountPoint **head, bool *changed) {
assert(head);
LIST_FOREACH_SAFE(mount_point, m, n, *head) {
+ log_info("Disabling swap %s.", m->path);
if (swapoff(m->path) == 0) {
if (changed)
*changed = true;
@@ -500,8 +501,9 @@ static int loopback_points_list_detach(MountPoint **head, bool *changed) {
continue;
}
- if ((r = delete_loopback(m->path)) >= 0) {
-
+ log_info("Deleting loopback %s.", m->path);
+ r = delete_loopback(m->path);
+ if (r >= 0) {
if (r > 0 && changed)
*changed = true;
@@ -534,14 +536,15 @@ static int dm_points_list_detach(MountPoint **head, bool *changed) {
continue;
}
- if ((r = delete_dm(m->devnum)) >= 0) {
-
+ log_info("Deleting DM %u:%u.", major(m->devnum), minor(m->devnum));
+ r = delete_dm(m->devnum);
+ if (r >= 0) {
if (changed)
*changed = true;
mount_point_free(head, m);
} else {
- log_warning("Could not delete dm %s: %m", m->path);
+ log_warning("Could not delete DM %s: %m", m->path);
n_failed++;
}
}
--
1.7.10.4
From 735e0712710a1dc26da0febafb91b242b2687f3f Mon Sep 17 00:00:00 2001
From: Michal Schmidt <mschmidt@redhat.com>
Date: Fri, 7 Dec 2012 18:02:43 +0100
Subject: [PATCH] shutdown, umount: use verbs consistently
Mounts are "unmounted".
Swaps are "deactivated", not "turned off" nor "disabled".
Loop and DM devices are "detached", not "deleted".
Especially the deleting sounded a bit scary.
---
src/core/shutdown.c | 8 ++++----
src/core/umount.c | 10 +++++-----
2 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/src/core/shutdown.c b/src/core/shutdown.c
index 6783008..0b0e0c3 100644
--- a/src/core/shutdown.c
+++ b/src/core/shutdown.c
@@ -207,15 +207,15 @@ int main(int argc, char *argv[]) {
}
if (need_swapoff) {
- log_info("Disabling swaps.");
+ log_info("Deactivating swaps.");
r = swapoff_all(&changed);
if (r == 0) {
need_swapoff = false;
- log_info("All swaps disabled.");
+ log_info("All swaps deactivated.");
} else if (r > 0)
- log_info("Not all swaps are turned off, %d left.", r);
+ log_info("Not all swaps deactivated, %d left.", r);
else
- log_error("Failed to turn off swaps: %s", strerror(-r));
+ log_error("Failed to deactivate swaps: %s", strerror(-r));
}
if (need_loop_detach) {
diff --git a/src/core/umount.c b/src/core/umount.c
index fd90d9f..96232d3 100644
--- a/src/core/umount.c
+++ b/src/core/umount.c
@@ -465,7 +465,7 @@ static int swap_points_list_off(MountPoint **head, bool *changed) {
assert(head);
LIST_FOREACH_SAFE(mount_point, m, n, *head) {
- log_info("Disabling swap %s.", m->path);
+ log_info("Deactivating swap %s.", m->path);
if (swapoff(m->path) == 0) {
if (changed)
*changed = true;
@@ -501,7 +501,7 @@ static int loopback_points_list_detach(MountPoint **head, bool *changed) {
continue;
}
- log_info("Deleting loopback %s.", m->path);
+ log_info("Detaching loopback %s.", m->path);
r = delete_loopback(m->path);
if (r >= 0) {
if (r > 0 && changed)
@@ -509,7 +509,7 @@ static int loopback_points_list_detach(MountPoint **head, bool *changed) {
mount_point_free(head, m);
} else {
- log_warning("Could not delete loopback %s: %m", m->path);
+ log_warning("Could not detach loopback %s: %m", m->path);
n_failed++;
}
}
@@ -536,7 +536,7 @@ static int dm_points_list_detach(MountPoint **head, bool *changed) {
continue;
}
- log_info("Deleting DM %u:%u.", major(m->devnum), minor(m->devnum));
+ log_info("Detaching DM %u:%u.", major(m->devnum), minor(m->devnum));
r = delete_dm(m->devnum);
if (r >= 0) {
if (changed)
@@ -544,7 +544,7 @@ static int dm_points_list_detach(MountPoint **head, bool *changed) {
mount_point_free(head, m);
} else {
- log_warning("Could not delete DM %s: %m", m->path);
+ log_warning("Could not detach DM %s: %m", m->path);
n_failed++;
}
}
--
1.7.10.4