John Ogness 002eb6ad07 printk: track/limit recursion ...

Currently the printk safe buffers provide a form of recursion
protection by redirecting to the safe buffers whenever printk() is
recursively called.

In preparation for removal of the safe buffers, provide an alternate
explicit recursion protection. Recursion is limited to 3 levels
per-CPU and per-context.

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/20210715193359.25946-3-john.ogness@linutronix.de

2021-07-26 15:07:15 +02:00

..

braille.c

printk: Replace strncmp() with str_has_prefix()

2019-08-16 09:54:08 +02:00

braille.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

console_cmdline.h

printk: Fix preferred console selection with multiple matches

2020-02-18 09:34:42 +01:00

internal.h

printk: rename vprintk_func to vprintk

2021-03-30 15:21:18 +02:00

Makefile

printk: add lockless ringbuffer

2020-07-10 08:48:19 +02:00

printk_ringbuffer.c

Merge branch 'printk-rework' into for-linus

2021-01-21 16:06:21 +01:00

printk_ringbuffer.h

printk: rectify kernel-doc for prb_rec_init_wr()

2021-01-26 11:17:51 +01:00

printk_safe.c

printk: Move EXPORT_SYMBOL() closer to vprintk definition

2021-06-16 10:42:19 +02:00

printk.c

printk: track/limit recursion

2021-07-26 15:07:15 +02:00