linux/kernel/printk
John Ogness 584528d621 printk: ringbuffer: Cleanup reader terminology
With the lockless ringbuffer, it is allowed that multiple
CPUs/contexts write simultaneously into the buffer. This creates
an ambiguity as some writers will finalize sooner.

The documentation for the prb_read functions is not clear as it
refers to "not yet written" and "no data available". Clarify the
return values and language to be in terms of the reader: records
available for reading.

Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20240207134103.1357162-9-john.ogness@linutronix.de
Signed-off-by: Petr Mladek <pmladek@suse.com>
2024-02-07 17:23:18 +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
index.c kernel/printk/index.c: fix memory leak with using debugfs_lookup() 2023-02-03 10:42:02 +01:00
internal.h printk: Add this_cpu_in_panic() 2024-02-07 17:23:18 +01:00
Makefile printk: Add non-BKL (nbcon) console basic infrastructure 2023-09-18 17:03:45 +02:00
nbcon.c printk: nbcon: Relocate 32bit seq macros 2024-02-07 17:23:17 +01:00
printk_ringbuffer.c printk: ringbuffer: Cleanup reader terminology 2024-02-07 17:23:18 +01:00
printk_ringbuffer.h printk: ringbuffer: Clarify special lpos values 2024-02-07 17:23:18 +01:00
printk_safe.c printk: Consolidate console deferred printing 2023-07-20 13:06:22 +02:00
printk.c printk: Add this_cpu_in_panic() 2024-02-07 17:23:18 +01:00
sysctl.c printk: Fix incorrect __user type in proc_dointvec_minmax_sysadmin() 2022-02-03 11:27:38 -08:00