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network/varlink: return earlier from SetPersistentStorage method if nothing changed

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This commit is contained in:
Yu Watanabe 2024-03-16 00:46:11 +09:00
parent 013359ac65
commit e1254d0616
1 changed files with 13 additions and 0 deletions
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13
src/network/networkd-manager-varlink.c
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@ -186,6 +186,7 @@ static int vl_method_set_persistent_storage(Varlink *vlink, JsonVariant *paramet
if (ready) {
_cleanup_close_ int fd = -EBADF;
struct stat st, st_prev;
fd = open("/var/lib/systemd/network/", O_CLOEXEC | O_DIRECTORY | O_PATH);
if (fd < 0)
@ -198,6 +199,18 @@ static int vl_method_set_persistent_storage(Varlink *vlink, JsonVariant *paramet
log_warning("The persistent storage is on read-only filesystem.");
return varlink_error(vlink, "io.systemd.Network.StorageReadOnly", NULL);
}
if (fstat(fd, &st) < 0)
return log_warning_errno(r, "Failed to stat the persistent storage: %m");
if (manager->persistent_storage_fd >= 0 &&
fstat(manager->persistent_storage_fd, &st_prev) >= 0 &&
stat_inode_same(&st, &st_prev))
return varlink_reply(vlink, NULL);
} else {
if (manager->persistent_storage_fd < 0)
return varlink_reply(vlink, NULL);
}
r = varlink_verify_polkit_async(