diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 50b2703d6d6a76a41f6a8f6705b7b0eaff0785a8..b3c454b733da8163f2616eb5bc9579ea40e697a8 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -1583,46 +1583,25 @@ static inline void printk_delay(void)
static struct cont {
char buf[LOG_LINE_MAX];
size_t len; /* length == 0 means unused buffer */
- size_t cons; /* bytes written to console */
struct task_struct *owner; /* task of first print*/
u64 ts_nsec; /* time of first print */
u8 level; /* log level of first message */
u8 facility; /* log facility of first message */
enum log_flags flags; /* prefix, newline flags */
- bool flushed:1; /* buffer sealed and committed */
} cont;
static void cont_flush(void)
{
- if (cont.flushed)
- return;
if (cont.len == 0)
return;
- if (cont.cons) {
- /*
- * If a fragment of this line was directly flushed to the
- * console; wait for the console to pick up the rest of the
- * line. LOG_NOCONS suppresses a duplicated output.
- */
- log_store(cont.facility, cont.level, cont.flags | LOG_NOCONS,
- cont.ts_nsec, NULL, 0, cont.buf, cont.len);
- cont.flushed = true;
- } else {
- /*
- * If no fragment of this line ever reached the console,
- * just submit it to the store and free the buffer.
- */
- log_store(cont.facility, cont.level, cont.flags, 0,
- NULL, 0, cont.buf, cont.len);
- cont.len = 0;
- }
+
+ log_store(cont.facility, cont.level, cont.flags, cont.ts_nsec,
+ NULL, 0, cont.buf, cont.len);
+ cont.len = 0;
}
static bool cont_add(int facility, int level, enum log_flags flags, const char *text, size_t len)
{
- if (cont.len && cont.flushed)
- return false;
-
/*
* If ext consoles are present, flush and skip in-kernel
* continuation. See nr_ext_console_drivers definition. Also, if
@@ -1639,8 +1618,6 @@ static bool cont_add(int facility, int level, enum log_flags flags, const char *
cont.owner = current;
cont.ts_nsec = local_clock();
cont.flags = flags;
- cont.cons = 0;
- cont.flushed = false;
}
memcpy(cont.buf + cont.len, text, len);
@@ -1659,34 +1636,6 @@ static bool cont_add(int facility, int level, enum log_flags flags, const char *
return true;
}
-static size_t cont_print_text(char *text, size_t size)
-{
- size_t textlen = 0;
- size_t len;
-
- if (cont.cons == 0) {
- textlen += print_time(cont.ts_nsec, text);
- size -= textlen;
- }
-
- len = cont.len - cont.cons;
- if (len > 0) {
- if (len+1 > size)
- len = size-1;
- memcpy(text + textlen, cont.buf + cont.cons, len);
- textlen += len;
- cont.cons = cont.len;
- }
-
- if (cont.flushed) {
- if (cont.flags & LOG_NEWLINE)
- text[textlen++] = '\n';
- /* got everything, release buffer */
- cont.len = 0;
- }
- return textlen;
-}
-
static size_t log_output(int facility, int level, enum log_flags lflags, const char *dict, size_t dictlen, char *text, size_t text_len)
{
/*
@@ -1957,7 +1906,6 @@ static void call_console_drivers(int level,
const char *text, size_t len) {}
static size_t msg_print_text(const struct printk_log *msg,
bool syslog, char *buf, size_t size) { return 0; }
-static size_t cont_print_text(char *text, size_t size) { return 0; }
static bool suppress_message_printing(int level) { return false; }
/* Still needs to be defined for users */
@@ -2221,42 +2169,6 @@ static inline int can_use_console(void)
return cpu_online(raw_smp_processor_id()) || have_callable_console();
}
-static void console_cont_flush(char *text, size_t size)
-{
- unsigned long flags;
- size_t len;
-
- raw_spin_lock_irqsave(&logbuf_lock, flags);
-
- if (!cont.len)
- goto out;
-
- if (suppress_message_printing(cont.level)) {
- cont.cons = cont.len;
- if (cont.flushed)
- cont.len = 0;
- goto out;
- }
-
- /*
- * We still queue earlier records, likely because the console was
- * busy. The earlier ones need to be printed before this one, we
- * did not flush any fragment so far, so just let it queue up.
- */
- if (console_seq < log_next_seq && !cont.cons)
- goto out;
-
- len = cont_print_text(text, size);
- raw_spin_unlock(&logbuf_lock);
- stop_critical_timings();
- call_console_drivers(cont.level, NULL, 0, text, len);
- start_critical_timings();
- local_irq_restore(flags);
- return;
-out:
- raw_spin_unlock_irqrestore(&logbuf_lock, flags);
-}
-
/**
* console_unlock - unlock the console system
*
@@ -2310,9 +2222,6 @@ void console_unlock(void)
return;
}
- /* flush buffered message fragment immediately to console */
- console_cont_flush(text, sizeof(text));
-
for (;;) {
struct printk_log *msg;
size_t ext_len = 0;
@@ -2341,8 +2250,7 @@ void console_unlock(void)
msg = log_from_idx(console_idx);
level = msg->level;
- if ((msg->flags & LOG_NOCONS) ||
- suppress_message_printing(level)) {
+ if (suppress_message_printing(level)) {
/*
* Skip record we have buffered and already printed
* directly to the console when we received it, and
@@ -2350,12 +2258,6 @@ void console_unlock(void)
*/
console_idx = log_next(console_idx);
console_seq++;
- /*
- * We will get here again when we register a new
- * CON_PRINTBUFFER console. Clear the flag so we
- * will properly dump everything later.
- */
- msg->flags &= ~LOG_NOCONS;
goto skip;
}