journald: log the slice of a process along with each message in _SYSTEMD_SLICE=

2 files changed, 7 insertions, 1 deletions

diff --git a/src/journal/journald-server.c b/src/journal/journald-server.c
index ba211b3724..709fa8b7d0 100644
--- a/src/journal/journald-server.c
+++ b/src/journal/journald-server.c
@@ -638,6 +638,12 @@ static void dispatch_message_real(
                                 IOVEC_SET_STRING(iovec[n++], x);
                         }
 
+                        if (cg_path_get_slice(c, &t) >= 0) {
+                                x = strappenda("_SYSTEMD_SLICE=", t);
+                                free(t);
+                                IOVEC_SET_STRING(iovec[n++], x);
+                        }
+
                         free(c);
                 }
 
diff --git a/src/journal/journald-server.h b/src/journal/journald-server.h
index e856ef277a..238fc8c3fb 100644
--- a/src/journal/journald-server.h
+++ b/src/journal/journald-server.h
@@ -125,7 +125,7 @@ typedef struct Server {
         bool sync_scheduled;
 } Server;
 
-#define N_IOVEC_META_FIELDS 19
+#define N_IOVEC_META_FIELDS 20
 #define N_IOVEC_KERNEL_FIELDS 64
 #define N_IOVEC_UDEV_FIELDS 32
 #define N_IOVEC_OBJECT_FIELDS 11