John Ogness b2805b1bdd printk: wake waiters for safe and NMI contexts ... [ Upstream commit 5341b93dea ] When printk() is called from safe or NMI contexts, it will directly store the record (vprintk_store()) and then defer the console output. However, defer_console_output() only causes console printing and does not wake any waiters of new records. Wake waiters from defer_console_output() so that they also are aware of the new records from safe and NMI contexts. Fixes: 03fc7f9c99 ("printk/nmi: Prevent deadlock when accessing the main log buffer in NMI") 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/20220421212250.565456-6-john.ogness@linutronix.de Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-06-09 10:25:42 +02:00
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Makefile	printk: move printk sysctl to printk/sysctl.c	2022-01-22 08:33:35 +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
index.c	printk: avoid -Wsometimes-uninitialized warning	2021-10-04 10:28:43 +02:00
internal.h	printk: fix build warning when CONFIG_PRINTK=n	2022-01-22 08:33:36 +02:00
printk.c	printk: wake waiters for safe and NMI contexts	2022-06-09 10:25:42 +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: remove NMI tracking	2021-07-26 15:09:44 +02:00
sysctl.c	printk: Fix incorrect __user type in proc_dointvec_minmax_sysadmin()	2022-02-03 11:27:38 -08:00