printk: reimplement log_cont using record extension

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Use the record extending feature of the ringbuffer to implement
continuous messages. This preserves the existing continuous message
behavior.

Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20200914123354.832-7-john.ogness@linutronix.de

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John Ogness 2020-09-14 14:39:54 +02:06 • committed by Petr Mladek

parent 4cfc7258f8

commit f5f022e53b

1 changed files with 20 additions and 78 deletions

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kernel/printk/printk.c

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