Messages in this thread Patch in this message | | | From | Petr Mladek <> | Subject | [PATCH 08/10] printk: Detect scheduler messages in vprintk_format_and_analyze() | Date | Mon, 25 May 2015 14:46:31 +0200 |
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The special hack for messages printed by the scheduler belongs to the new vprintk_format_and_analyze().
This patch just shuffles the code. There is no change in the functionality.
Signed-off-by: Petr Mladek <pmladek@suse.cz> --- kernel/printk/printk.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-)
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index 7d009144f97f..6e53b6f60ca3 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -1747,15 +1747,16 @@ static int vprintk_delayed_warnings(void) * @dict: pointer to the message dictionary * @facility: syslog facility * @level: syslog level; might be replaced by the one found in the fomatted text + * @in_sched: is set to true when the message is printed by the scheduler * @ftext: pointer to the formatted text after the syslog prefix * @ftext_len: length of the formatted text without the syslog prefix * * This function modifies the global textbuf and therefore it must be called * under lockbuf_lock! */ -static enum log_flags vprinkt_format_and_analyze(const char *fmt, va_list args, +static enum log_flags vprintk_format_and_analyze(const char *fmt, va_list args, const char *dict, int facility, - int *level, + int *level, bool *in_sched, char **ftext, size_t *ftext_len) { @@ -1775,6 +1776,15 @@ static enum log_flags vprinkt_format_and_analyze(const char *fmt, va_list args, lflags |= LOG_NEWLINE; } + /* + * Messages printed by the scheduler must not wake up the console. + * They are detected via a special @level, see printk_deferred(). + */ + if (*level == LOGLEVEL_SCHED) { + *level = LOGLEVEL_DEFAULT; + *in_sched = true; + } + /* strip kernel syslog prefix and extract log level or control flags */ if (facility == 0) { int kern_level = printk_get_level(text); @@ -1824,11 +1834,6 @@ asmlinkage int vprintk_emit(int facility, int level, int printed_len = 0; bool in_sched = false; - if (level == LOGLEVEL_SCHED) { - level = LOGLEVEL_DEFAULT; - in_sched = true; - } - boot_delay_msec(level); printk_delay(); @@ -1880,8 +1885,8 @@ asmlinkage int vprintk_emit(int facility, int level, printed_len += vprintk_delayed_warnings(); - lflags = vprinkt_format_and_analyze(fmt, args, dict, facility, - &level, + lflags = vprintk_format_and_analyze(fmt, args, dict, facility, + &level, &in_sched, &text, &text_len); if (!(lflags & LOG_NEWLINE)) { -- 1.8.5.6
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