John Ogness 7d7a23a91c printk: use seqcount_latch for clear_seq ... kmsg_dump_rewind_nolock() locklessly reads @clear_seq. However, this is not done atomically. Since @clear_seq is 64-bit, this cannot be an atomic operation for all platforms. Therefore, use a seqcount_latch to allow readers to always read a consistent value. 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/20210303101528.29901-9-john.ogness@linutronix.de		2021-03-08 11:43:15 +01:00
..
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: move dictionary keys to dev_printk_info	2020-09-22 11:27:48 +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: fix deadlock when kernel panic	2021-02-10 13:57:06 +01:00
printk.c	printk: use seqcount_latch for clear_seq	2021-03-08 11:43:15 +01:00