From 832afab9162207cb4622d5db2275f5d4457d7d95 Mon Sep 17 00:00:00 2001
From: Lizzy Fleckenstein <lizzy@vlhl.dev>
Date: Wed, 1 Apr 2026 20:55:25 +0200
Subject: use O_DIRECT instead of fsync()

---
 watchdog.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/watchdog.c b/watchdog.c
index 0fe66f9..2e8117a 100644
--- a/watchdog.c
+++ b/watchdog.c
@@ -84,7 +84,7 @@ int main(int argc, char **argv)
     long clock_tick = sysconf(_SC_CLK_TCK);
 
     char *logfile = argc > 1 ? argv[1] : "watchdog.log";
-    int logfd = open(logfile, O_WRONLY | O_CREAT | O_APPEND, 0644);
+    int logfd = open(logfile, O_WRONLY | O_CREAT | O_APPEND | O_DIRECT, 0644);
     if (logfd == -1) {
         perror("open logfile");
         return EXIT_FAILURE;
@@ -195,7 +195,6 @@ int main(int argc, char **argv)
 
                     int n_written = write(logfd, linebuffer, n_line);
                     (void) n_written;
-                    fsync(logfd);
                     bursting_pid = proc->pid;
                 }
             }
-- 
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