John Ogness 5dde3b7354 printk: nbcon: Add unsafe flushing on panic ... Add nbcon_atomic_flush_unsafe() to flush all nbcon consoles using the write_atomic() callback and allowing unsafe hostile takeovers. Call this at the end of panic() as a final attempt to flush any pending messages. Note that legacy consoles use unsafe methods for flushing from the beginning of panic (see bust_spinlocks()). Therefore, systems using both legacy and nbcon consoles may still fail to see panic messages due to unsafe legacy console usage. Signed-off-by: John Ogness <john.ogness@linutronix.de> Reviewed-by: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/r/20240820063001.36405-27-john.ogness@linutronix.de Signed-off-by: Petr Mladek <pmladek@suse.com>		2024-08-21 14:56:24 +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: Add match_devname_and_update_preferred_console()	2024-07-04 15:41:44 +02:00
index.c	kernel/printk/index.c: fix memory leak with using debugfs_lookup()	2023-02-03 10:42:02 +01:00
internal.h	printk: nbcon: Flush new records on device_release()	2024-08-21 14:56:24 +02:00
Makefile	Revert "printk: Save console options for add_preferred_console_match()"	2024-06-25 07:58:10 +02:00
nbcon.c	printk: nbcon: Add unsafe flushing on panic	2024-08-21 14:56:24 +02:00
printk_ringbuffer.c	printk: ringbuffer: Skip non-finalized records in panic	2024-02-07 17:23:18 +01:00
printk_ringbuffer.h	printk: nbcon: Do not rely on proxy headers	2024-08-21 14:56:23 +02:00
printk_safe.c	printk: Add is_printk_legacy_deferred()	2024-08-21 14:56:24 +02:00
printk.c	printk: Flush nbcon consoles first on panic	2024-08-21 14:56:24 +02:00
sysctl.c	sysctl: treewide: constify the ctl_table argument of proc_handlers	2024-07-24 20:59:29 +02:00