libinitramfs/logging: Make stderr unbuffered

legionus · legionus · commit 0729f3a36441 · 2025-04-08T08:56:23.000+02:00
Signed-off-by: Alexey Gladkov &lt;gladkov.alexey@gmail.com&gt;
diff --git a/runtime/src/libinitramfs/logging.c b/runtime/src/libinitramfs/logging.c
@@ -145,4 +145,6 @@ void rd_log_setup_stderr(const char *logfile)
 
 	if (!freopen(logfile, "w+", stderr))
 		rd_fatal("freopen(%s): %m", logfile);
+
+	setvbuf(stderr, NULL, _IONBF, 0);
 }

Original file line number	Diff line number	Diff line change
`@@ -145,4 +145,6 @@ void rd_log_setup_stderr(const char *logfile)`
`145`	`145`
`146`	`146`	`if (!freopen(logfile, "w+", stderr))`
`147`	`147`	`rd_fatal("freopen(%s): %m", logfile);`
	`148`	`+`
	`149`	`+ setvbuf(stderr, NULL, _IONBF, 0);`
`148`	`150`	`}`