check_swap stuff: Add comments to ifdef stuff to improve readability

1 files changed, 4 insertions, 4 deletions

diff --git a/plugins/check_swap.d/swap.c b/plugins/check_swap.d/swap.c
index 354efdbf..ece05fd2 100644
--- a/plugins/check_swap.d/swap.c
+++ b/plugins/check_swap.d/swap.c
@@ -30,7 +30,7 @@ swap_result get_swap_data(swap_config config) {
         }
 
         return getSwapFromProcMeminfo(PROC_MEMINFO);
-#else
+#else // HAVE_PROC_MEMINFO
 #       ifdef HAVE_SWAP
         if (verbose >= 3) {
                 printf("Using swap command %s with format: %s\n", SWAP_COMMAND, SWAP_FORMAT);
@@ -48,13 +48,13 @@ swap_result get_swap_data(swap_config config) {
         } else {
                 return getSwapFromSwapCommand(config, SWAP_COMMAND, SWAP_FORMAT);
         }
-#       else
+#       else // HAVE_SWAP
 #               ifdef CHECK_SWAP_SWAPCTL_SVR4
         return getSwapFromSwapctl_SRV4();
-#               else
+#               else // CHECK_SWAP_SWAPCTL_SVR4
 #                       ifdef CHECK_SWAP_SWAPCTL_BSD
         return getSwapFromSwapctl_BSD();
-#                       else
+#                       else // CHECK_SWAP_SWAPCTL_BSD
 #                               error No way found to retrieve swap
 #                       endif /* CHECK_SWAP_SWAPCTL_BSD */
 #               endif     /* CHECK_SWAP_SWAPCTL_SVR4 */