journald: Fix off-by-one error in "Missed X kernel messages" warning

On receiving a message, "kernel_seqnum" is set to "serial + 1". So
subtracting 1 will cause messages like "Missed 0 kernel messages",
which should be "Missed 1 kernel messages".

(cherry picked from commit b9c488f600)
This commit is contained in:
Eelco Dolstra
2014-10-26 18:23:42 -04:00
committed by Zbigniew Jędrzejewski-Szmek
parent 704dd9ab74
commit 135dced907
+1 -1
View File
@@ -152,7 +152,7 @@ static void dev_kmsg_record(Server *s, char *p, size_t l) {
/* Did we lose any? */
if (serial > *s->kernel_seqnum)
server_driver_message(s, SD_MESSAGE_JOURNAL_MISSED, "Missed %"PRIu64" kernel messages",
serial - *s->kernel_seqnum - 1);
serial - *s->kernel_seqnum);
/* Make sure we never read this one again. Note that
* we always store the next message serial we expect