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-rw-r--r--src/basic/hashmap.c8
-rw-r--r--src/nspawn/nspawn.c11
2 files changed, 17 insertions, 2 deletions
diff --git a/src/basic/hashmap.c b/src/basic/hashmap.c
index e5f05f36f8..7d2a4160c6 100644
--- a/src/basic/hashmap.c
+++ b/src/basic/hashmap.c
@@ -22,6 +22,7 @@
#include <stdlib.h>
#include <errno.h>
+#include <pthread.h>
#include "util.h"
#include "hashmap.h"
@@ -157,6 +158,7 @@ struct hashmap_debug_info {
/* Tracks all existing hashmaps. Get at it from gdb. See sd_dump_hashmaps.py */
static LIST_HEAD(struct hashmap_debug_info, hashmap_debug_list);
+static pthread_mutex_t hashmap_debug_list_mutex = PTHREAD_MUTEX_INITIALIZER;
#define HASHMAP_DEBUG_FIELDS struct hashmap_debug_info debug;
@@ -806,10 +808,12 @@ static struct HashmapBase *hashmap_base_new(const struct hash_ops *hash_ops, enu
}
#ifdef ENABLE_DEBUG_HASHMAP
- LIST_PREPEND(debug_list, hashmap_debug_list, &h->debug);
h->debug.func = func;
h->debug.file = file;
h->debug.line = line;
+ assert_se(pthread_mutex_lock(&hashmap_debug_list_mutex) == 0);
+ LIST_PREPEND(debug_list, hashmap_debug_list, &h->debug);
+ assert_se(pthread_mutex_unlock(&hashmap_debug_list_mutex) == 0);
#endif
return h;
@@ -861,7 +865,9 @@ static void hashmap_free_no_clear(HashmapBase *h) {
assert(!h->n_direct_entries);
#ifdef ENABLE_DEBUG_HASHMAP
+ assert_se(pthread_mutex_lock(&hashmap_debug_list_mutex) == 0);
LIST_REMOVE(debug_list, hashmap_debug_list, &h->debug);
+ assert_se(pthread_mutex_unlock(&hashmap_debug_list_mutex) == 0);
#endif
if (h->from_pool)
diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
index d1154de08a..4cf2d14ae2 100644
--- a/src/nspawn/nspawn.c
+++ b/src/nspawn/nspawn.c
@@ -1538,7 +1538,16 @@ static int setup_resolv_conf(const char *dest) {
r = copy_file("/etc/resolv.conf", where, O_TRUNC|O_NOFOLLOW, 0644, 0);
if (r < 0) {
- log_warning_errno(r, "Failed to copy /etc/resolv.conf to %s: %m", where);
+ /* If the file already exists as symlink, let's
+ * suppress the warning, under the assumption that
+ * resolved or something similar runs inside and the
+ * symlink points there.
+ *
+ * If the disk image is read-only, there's also no
+ * point in complaining.
+ */
+ log_full_errno(IN_SET(r, -ELOOP, -EROFS) ? LOG_DEBUG : LOG_WARNING, r,
+ "Failed to copy /etc/resolv.conf to %s: %m", where);
return 0;
}