summaryrefslogtreecommitdiff
path: root/include
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2018-08-15 21:18:53 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-15 21:18:53 +0300
commitb125d903881901a53117dfe404c789850b4e98ed (patch)
tree95dd0bd0bf93c68c8b0ac354dda6ee2fa382dd4e /include
parent8c326850304d495deee6ff9a609173a340c5245b (diff)
parent9f68cb579115faa211ae067b4628cf11162783fb (diff)
downloadlinux-b125d903881901a53117dfe404c789850b4e98ed.tar.xz
Merge tag 'printk-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull printk updates from Petr Mladek: - Different vendors have a different expectation about a console quietness. Make it configurable to reduce bike-shedding about the upstream default - Decide about the message visibility when the message is stored. It avoids races caused by a delayed console handling - Always store printk() messages into the per-CPU buffers again in NMI. The only exception is when flushing trace log in panic(). There the risk of loosing messages is worth an eventual reordering - Handle invalid %pO printf modifiers correctly - Better handle %p printf modifier tests before crng is initialized - Some clean up * tag 'printk-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk: lib/vsprintf: Do not handle %pO[^F] as %px printk: Fix warning about unused suppress_message_printing printk/nmi: Prevent deadlock when accessing the main log buffer in NMI printk: Create helper function to queue deferred console handling printk: Split the code for storing a message into the log buffer printk: Clean up syslog_print_all() printk: Remove unnecessary kmalloc() from syslog during clear printk: Make CONSOLE_LOGLEVEL_QUIET configurable printk: make sure to print log on console. lib/test_printf.c: accept "ptrval" as valid result for plain 'p' tests
Diffstat (limited to 'include')
-rw-r--r--include/linux/printk.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/include/linux/printk.h b/include/linux/printk.h
index 6d7e800affd8..cf3eccfe1543 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -50,15 +50,15 @@ static inline const char *printk_skip_headers(const char *buffer)
/* We show everything that is MORE important than this.. */
#define CONSOLE_LOGLEVEL_SILENT 0 /* Mum's the word */
#define CONSOLE_LOGLEVEL_MIN 1 /* Minimum loglevel we let people use */
-#define CONSOLE_LOGLEVEL_QUIET 4 /* Shhh ..., when booted with "quiet" */
#define CONSOLE_LOGLEVEL_DEBUG 10 /* issue debug messages */
#define CONSOLE_LOGLEVEL_MOTORMOUTH 15 /* You can't shut this one up */
/*
- * Default used to be hard-coded at 7, we're now allowing it to be set from
- * kernel config.
+ * Default used to be hard-coded at 7, quiet used to be hardcoded at 4,
+ * we're now allowing both to be set from kernel config.
*/
#define CONSOLE_LOGLEVEL_DEFAULT CONFIG_CONSOLE_LOGLEVEL_DEFAULT
+#define CONSOLE_LOGLEVEL_QUIET CONFIG_CONSOLE_LOGLEVEL_QUIET
extern int console_printk[];
@@ -148,9 +148,13 @@ void early_printk(const char *s, ...) { }
#ifdef CONFIG_PRINTK_NMI
extern void printk_nmi_enter(void);
extern void printk_nmi_exit(void);
+extern void printk_nmi_direct_enter(void);
+extern void printk_nmi_direct_exit(void);
#else
static inline void printk_nmi_enter(void) { }
static inline void printk_nmi_exit(void) { }
+static inline void printk_nmi_direct_enter(void) { }
+static inline void printk_nmi_direct_exit(void) { }
#endif /* PRINTK_NMI */
#ifdef CONFIG_PRINTK