watchdog: clarify that we set the *watchdog* timeout

This makes sure we mention the word "watchdog" in every log message
related to the watchdog.

Also, this uses the expression "hardware timeout" when referring to the
primary timeout of the watchdog, as opposed to the "pretimeout".

(Not ideal wording I know, but it's preexisting to some point, I just
continued it. I think it's OK though, in particular to underline the
difference to the software watchdog logic we implement via WATCHDOG= in
sd_notify().)

Fixes: #31662

diff --git a/src/shared/watchdog.c b/src/shared/watchdog.c
index 2d79f7147a8cef9750045ade46a558191d4154a6..99ccefb2273ea42e920f8b15b9b9685439d3b460 100644 (file)
--- a/src/shared/watchdog.c
+++ b/src/shared/watchdog.c
@@ -95,7 +95,7 @@ static int set_pretimeout_governor(const char *governor) {
                               governor,
                               WRITE_STRING_FILE_DISABLE_BUFFER | WRITE_STRING_FILE_VERIFY_ON_FAILURE | WRITE_STRING_FILE_VERIFY_IGNORE_NEWLINE);
         if (r < 0)
-                return log_error_errno(r, "Failed to set pretimeout_governor to '%s': %m", governor);
+                return log_error_errno(r, "Failed to set watchdog pretimeout_governor to '%s': %m", governor);
 
         return r;
 }
@@ -157,7 +157,7 @@ static int watchdog_read_pretimeout(void) {
 
         if (ioctl(watchdog_fd, WDIOC_GETPRETIMEOUT, &sec) < 0) {
                 watchdog_pretimeout = 0;
-                return log_full_errno(ERRNO_IS_NOT_SUPPORTED(errno) ? LOG_DEBUG : LOG_WARNING, errno, "Failed to get pretimeout value, ignoring: %m");
+                return log_full_errno(ERRNO_IS_NOT_SUPPORTED(errno) ? LOG_DEBUG : LOG_WARNING, errno, "Failed to get watchdog pretimeout value, ignoring: %m");
         }
 
         watchdog_pretimeout = sec * USEC_PER_SEC;
@@ -181,7 +181,7 @@ static int watchdog_set_pretimeout(void) {
                         return 0;
                 }
 
-                return log_error_errno(errno, "Failed to set pretimeout to %s: %m", FORMAT_TIMESPAN(sec, USEC_PER_SEC));
+                return log_error_errno(errno, "Failed to set watchdog pretimeout to %s: %m", FORMAT_TIMESPAN(sec, USEC_PER_SEC));
         }
 
         /* The set ioctl does not return the actual value set so get it now. */
@@ -274,10 +274,10 @@ static int update_timeout(void) {
                 r = watchdog_set_timeout();
                 if (r < 0) {
                         if (!ERRNO_IS_NOT_SUPPORTED(r))
-                                return log_error_errno(r, "Failed to set timeout to %s: %m",
+                                return log_error_errno(r, "Failed to set watchdog hardware timeout to %s: %m",
                                                        FORMAT_TIMESPAN(watchdog_timeout, 0));
 
-                        log_info("Modifying watchdog timeout is not supported, reusing the programmed timeout.");
+                        log_info("Modifying watchdog hardware timeout is not supported, reusing the programmed timeout.");
                         watchdog_timeout = USEC_INFINITY;
                 }
         }
@@ -286,8 +286,8 @@ static int update_timeout(void) {
                 r = watchdog_read_timeout();
                 if (r < 0) {
                         if (!ERRNO_IS_NOT_SUPPORTED(r))
-                                return log_error_errno(r, "Failed to query watchdog HW timeout: %m");
-                        log_info("Reading watchdog timeout is not supported, reusing the configured timeout.");
+                                return log_error_errno(r, "Failed to query watchdog hardware timeout: %m");
+                        log_info("Reading watchdog hardware timeout is not supported, reusing the configured timeout.");
                         watchdog_timeout = previous_timeout;
                 }
         }
@@ -302,7 +302,7 @@ static int update_timeout(void) {
         if (r < 0)
                 return r;
 
-        log_info("Watchdog running with a timeout of %s.", FORMAT_TIMESPAN(watchdog_timeout, 0));
+        log_info("Watchdog running with a hardware timeout of %s.", FORMAT_TIMESPAN(watchdog_timeout, 0));
 
         return watchdog_ping_now();
 }