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authorLennart Poettering <lennart@poettering.net>2015-10-27 17:59:45 +0100
committerLennart Poettering <lennart@poettering.net>2015-10-27 17:59:45 +0100
commitc386f5886466de6022b3b4b1c8ac8df72871fbc7 (patch)
treec8ccf30e01db8cce8ece75aaaab2f7d83b281fc9 /src/core
parent76583ef261c65feb6059680f95693ee582406c90 (diff)
core: all unit types that watch control PIDs should use the same logic
When coldplugging the unit state, make sure to follow the same basic logic for all unit types: always verify whether the control PID is still a waitable process before proceeding.
Diffstat (limited to 'src/core')
-rw-r--r--src/core/busname.c7
-rw-r--r--src/core/mount.c26
-rw-r--r--src/core/socket.c7
-rw-r--r--src/core/swap.c20
4 files changed, 29 insertions, 31 deletions
diff --git a/src/core/busname.c b/src/core/busname.c
index 3592f72fe5..68508e20d2 100644
--- a/src/core/busname.c
+++ b/src/core/busname.c
@@ -364,10 +364,9 @@ static int busname_coldplug(Unit *u) {
if (n->deserialized_state == n->state)
return 0;
- if (IN_SET(n->deserialized_state, BUSNAME_MAKING, BUSNAME_SIGTERM, BUSNAME_SIGKILL)) {
-
- if (n->control_pid <= 0)
- return -EBADMSG;
+ if (n->control_pid > 0 &&
+ pid_is_unwaited(n->control_pid) &&
+ IN_SET(n->deserialized_state, BUSNAME_MAKING, BUSNAME_SIGTERM, BUSNAME_SIGKILL)) {
r = unit_watch_pid(UNIT(n), n->control_pid);
if (r < 0)
diff --git a/src/core/mount.c b/src/core/mount.c
index 2761f632bd..950d5d76d5 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -632,19 +632,19 @@ static int mount_coldplug(Unit *u) {
if (new_state == m->state)
return 0;
- if (new_state == MOUNT_MOUNTING ||
- new_state == MOUNT_MOUNTING_DONE ||
- new_state == MOUNT_REMOUNTING ||
- new_state == MOUNT_UNMOUNTING ||
- new_state == MOUNT_MOUNTING_SIGTERM ||
- new_state == MOUNT_MOUNTING_SIGKILL ||
- new_state == MOUNT_UNMOUNTING_SIGTERM ||
- new_state == MOUNT_UNMOUNTING_SIGKILL ||
- new_state == MOUNT_REMOUNTING_SIGTERM ||
- new_state == MOUNT_REMOUNTING_SIGKILL) {
-
- if (m->control_pid <= 0)
- return -EBADMSG;
+ if (m->control_pid > 0 &&
+ pid_is_unwaited(m->control_pid) &&
+ IN_SET(new_state,
+ MOUNT_MOUNTING,
+ MOUNT_MOUNTING_DONE,
+ MOUNT_REMOUNTING,
+ MOUNT_UNMOUNTING,
+ MOUNT_MOUNTING_SIGTERM,
+ MOUNT_MOUNTING_SIGKILL,
+ MOUNT_UNMOUNTING_SIGTERM,
+ MOUNT_UNMOUNTING_SIGKILL,
+ MOUNT_REMOUNTING_SIGTERM,
+ MOUNT_REMOUNTING_SIGKILL)) {
r = unit_watch_pid(UNIT(m), m->control_pid);
if (r < 0)
diff --git a/src/core/socket.c b/src/core/socket.c
index f62466c6a0..3c7f972fbc 100644
--- a/src/core/socket.c
+++ b/src/core/socket.c
@@ -1455,7 +1455,9 @@ static int socket_coldplug(Unit *u) {
if (s->deserialized_state == s->state)
return 0;
- if (IN_SET(s->deserialized_state,
+ if (s->control_pid > 0 &&
+ pid_is_unwaited(s->control_pid) &&
+ IN_SET(s->deserialized_state,
SOCKET_START_PRE,
SOCKET_START_CHOWN,
SOCKET_START_POST,
@@ -1466,9 +1468,6 @@ static int socket_coldplug(Unit *u) {
SOCKET_FINAL_SIGTERM,
SOCKET_FINAL_SIGKILL)) {
- if (s->control_pid <= 0)
- return -EBADMSG;
-
r = unit_watch_pid(UNIT(s), s->control_pid);
if (r < 0)
return r;
diff --git a/src/core/swap.c b/src/core/swap.c
index 6eff6ffb4c..f626ea4d87 100644
--- a/src/core/swap.c
+++ b/src/core/swap.c
@@ -528,16 +528,16 @@ static int swap_coldplug(Unit *u) {
if (new_state == s->state)
return 0;
- if (new_state == SWAP_ACTIVATING ||
- new_state == SWAP_ACTIVATING_SIGTERM ||
- new_state == SWAP_ACTIVATING_SIGKILL ||
- new_state == SWAP_ACTIVATING_DONE ||
- new_state == SWAP_DEACTIVATING ||
- new_state == SWAP_DEACTIVATING_SIGTERM ||
- new_state == SWAP_DEACTIVATING_SIGKILL) {
-
- if (s->control_pid <= 0)
- return -EBADMSG;
+ if (s->control_pid > 0 &&
+ pid_is_unwaited(s->control_pid) &&
+ IN_SET(new_state,
+ SWAP_ACTIVATING,
+ SWAP_ACTIVATING_SIGTERM,
+ SWAP_ACTIVATING_SIGKILL,
+ SWAP_ACTIVATING_DONE,
+ SWAP_DEACTIVATING,
+ SWAP_DEACTIVATING_SIGTERM,
+ SWAP_DEACTIVATING_SIGKILL)) {
r = unit_watch_pid(UNIT(s), s->control_pid);
if (r < 0)