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| author | Marc Aurèle La France <tsi@tuyoix.net> | 2023-02-20 22:10:32 -0700 |
|---|---|---|
| committer | Petr Mladek <pmladek@suse.com> | 2023-03-27 13:12:09 +0200 |
| commit | 0c705be9609931920c299e76811b21acc9502f1a (patch) | |
| tree | e53a50066a6d944ffc1ce6fa16b060f1210b98fa /init | |
| parent | d8763154455e92a2ffed256e48fa46bb35ef3bdf (diff) | |
| download | lwn-0c705be9609931920c299e76811b21acc9502f1a.tar.gz lwn-0c705be9609931920c299e76811b21acc9502f1a.zip | |
Remove orphaned CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT
After the commit 93d102f094be9beab2 ("printk: remove safe buffers"),
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT is no longer useful. Remove it.
Signed-off-by: Marc Aurèle La France <tsi@tuyoix.net>
Reviewed-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
[pmladek@suse.cz: Cleaned up the commit message.]
Signed-off-by: Petr Mladek <pmladek@suse.com>
Fixes: 93d102f094be9beab ("printk: remove safe buffers")
Link: https://lore.kernel.org/r/5c19e248-1b6b-330c-7c4c-a824688daefe@tuyoix.net
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/init/Kconfig b/init/Kconfig index 77a4318a6043..77c89142e44f 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -769,30 +769,6 @@ config LOG_CPU_MAX_BUF_SHIFT 13 => 8 KB for each CPU 12 => 4 KB for each CPU -config PRINTK_SAFE_LOG_BUF_SHIFT - int "Temporary per-CPU printk log buffer size (12 => 4KB, 13 => 8KB)" - range 10 21 - default 13 - depends on PRINTK - help - Select the size of an alternate printk per-CPU buffer where messages - printed from unsafe contexts are temporary stored. One example would - be NMI messages, another one - printk recursion. The messages are - copied to the main log buffer in a safe context to avoid a deadlock. - The value defines the size as a power of 2. - - Those messages are rare and limited. The largest one is when - a backtrace is printed. It usually fits into 4KB. Select - 8KB if you want to be on the safe side. - - Examples: - 17 => 128 KB for each CPU - 16 => 64 KB for each CPU - 15 => 32 KB for each CPU - 14 => 16 KB for each CPU - 13 => 8 KB for each CPU - 12 => 4 KB for each CPU - config PRINTK_INDEX bool "Printk indexing debugfs interface" depends on PRINTK && DEBUG_FS |