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authorLennart Poettering <lennart@poettering.net>2014-06-20 16:58:21 +0200
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2014-06-21 11:02:25 -0400
commit92254f72bbea94b8e640b829e2a0aef2a1aa4a36 (patch)
treeb4cb3d90221cafc8241239cf0eecf7bf789bce64
parent3eb31d88fd664d55251102d8504d05426a97d0b3 (diff)
core: clean-up signal reset logic when reexec
There's no need to save the old sigmask, if we are going to die. Let's simplify this. Also, reset all the signal handlers, so that we don't leave SIG_IGN set for some of them across reexec. (cherry picked from commit 9bfcda9528636914aef3e0ab91191bb81654c83d)
-rw-r--r--src/core/main.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/src/core/main.c b/src/core/main.c
index 62f8140e8..b6795a0f0 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -1780,7 +1780,7 @@ finish:
if (reexecute) {
const char **args;
unsigned i, args_size;
- sigset_t ss, o_ss;
+ sigset_t ss;
/* Close and disarm the watchdog, so that the new
* instance can reinitialize it, but doesn't get
@@ -1866,8 +1866,10 @@ finish:
/* reenable any blocked signals, especially important
* if we switch from initial ramdisk to init=... */
- sigemptyset(&ss);
- sigprocmask(SIG_SETMASK, &ss, &o_ss);
+ reset_all_signal_handlers();
+
+ assert_se(sigemptyset(&ss) == 0);
+ assert_se(sigprocmask(SIG_SETMASK, &ss, NULL) == 0);
if (switch_root_init) {
args[0] = switch_root_init;
@@ -1887,8 +1889,6 @@ finish:
log_error("Failed to execute /bin/sh, giving up: %m");
} else
log_warning("Failed to execute /sbin/init, giving up: %m");
-
- sigprocmask(SIG_SETMASK, &o_ss, NULL);
}
if (arg_serialization) {