s3-daemons: Set the comment field of the daemons.

PR_SET_NAME sets the comm field of a process. This way we can give
processes a name and they are easier to identify.

$ ps afx -o pid,comm
29447 smbd
29452  \_ epmd
29453  \_ lsasd-master
29455  |   \_ lsasd-child
29457  |   \_ lsasd-child
29459  |   \_ lsasd-child
29461  |   \_ lsasd-child
29463  |   \_ lsasd-child
29454  \_ spoolssd-master
29456      \_ lpqd
29458      \_ spoolssd-child
29460      \_ spoolssd-child
29462      \_ spoolssd-child
29465      \_ spoolssd-child
29466      \_ spoolssd-child
29467      \_ spoolssd-child
29468      \_ spoolssd-child
29469      \_ spoolssd-child
29470      \_ spoolssd-child
29471      \_ spoolssd-child

Reviewed-by: David Disseldorp <ddiss@samba.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/source3/printing/spoolssd.c b/source3/printing/spoolssd.c
index db303a1b0bd..464d12bf991 100644
--- a/source3/printing/spoolssd.c
+++ b/source3/printing/spoolssd.c
@@ -20,6 +20,8 @@
 #include "serverid.h"
 #include "smbd/smbd.h"
 
+#include "lib/util/util_process.h"
+
 #include "messages.h"
 #include "include/printing.h"
 #include "printing/nt_printing_migrate_internal.h"
@@ -293,6 +295,8 @@ static bool spoolss_child_init(struct tevent_context *ev_ctx,
 		smb_panic("reinit_after_fork() failed");
 	}
 
+	prctl_set_comment("spoolssd-child");
+
 	spoolss_child_id = child_id;
 	spoolss_reopen_logs(child_id);
 
@@ -670,6 +674,8 @@ pid_t start_spoolssd(struct tevent_context *ev_ctx,
 		smb_panic("reinit_after_fork() failed");
 	}
 
+	prctl_set_comment("spoolssd-master");
+
 	/* save the parent process id so the children can use it later */
 	parent_id = messaging_server_id(msg_ctx);