From: Michal Koutný <mkoutny@suse.com>
Date: Tue, 29 Nov 2022 12:23:51 +0000 (+0100)
Subject: cgtop: Update code comments
X-Git-Tag: v253-rc1~418
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=862be54d572c8563a43796d36807f3e4df5a58c2;p=thirdparty%2Fsystemd.git

cgtop: Update code comments
---

diff --git a/src/cgtop/cgtop.c b/src/cgtop/cgtop.c
index cef5b654e7a..5d82d656bca 100644
--- a/src/cgtop/cgtop.c
+++ b/src/cgtop/cgtop.c
@@ -56,10 +56,11 @@ typedef struct Group {
         uint64_t io_input_bps, io_output_bps;
 } Group;
 
+/* Counted objects, enum order matters */
 typedef enum PidsCount {
-        COUNT_USERSPACE_PROCESSES,
+        COUNT_USERSPACE_PROCESSES,      /* least */
         COUNT_ALL_PROCESSES,
-        COUNT_PIDS,
+        COUNT_PIDS,                     /* most, requires pids controller */
 } PidsCount;
 
 static unsigned arg_depth = 3;
@@ -932,6 +933,7 @@ static int run(int argc, char *argv[]) {
         if (r < 0)
                 return log_error_errno(r, "Failed to determine supported controllers: %m");
 
+        /* honor user selection unless pids controller is unavailable */
         possible_count = (mask & CGROUP_MASK_PIDS) ? COUNT_PIDS : COUNT_ALL_PROCESSES;
         arg_count = MIN(possible_count, arg_count);