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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-16 22:02:28 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-16 22:02:28 +0400 |
commit | e28d713704117bca0820c732210df6075b09f13b (patch) | |
tree | c2c8b2a40cb5081e8b6368eecc21220ee59903bf | |
parent | 5fd29d6ccbc98884569d6f3105aeca70858b3e0f (diff) | |
download | linux-e28d713704117bca0820c732210df6075b09f13b.tar.xz |
printk: Add KERN_DEFAULT printk log-level
This adds a KERN_DEFAULT loglevel marker, for when you cannot decide
which loglevel you want, and just want to keep an existing printk
with the default loglevel.
The difference between having KERN_DEFAULT and having no log-level
marker at all is two-fold:
- having the log-level marker will now force a new-line if the
previous printout had not added one (perhaps because it forgot,
but perhaps because it expected a continuation)
- having a log-level marker is required if you are printing out a
message that otherwise itself could perhaps otherwise be mistaken
for a log-level.
Signed-of-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r-- | include/linux/kernel.h | 2 | ||||
-rw-r--r-- | kernel/printk.c | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 066bb1eddfea..1b2e1747df1a 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -97,6 +97,8 @@ extern const char linux_proc_banner[]; #define KERN_INFO "<6>" /* informational */ #define KERN_DEBUG "<7>" /* debug-level messages */ +/* Use the default kernel loglevel */ +#define KERN_DEFAULT "<d>" /* * Annotation for a "continued" line of log printout (only done after a * line that had no enclosing \n). Only to be used by core/arch code diff --git a/kernel/printk.c b/kernel/printk.c index a87770ce73a2..b4d97b54c1ec 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -696,6 +696,8 @@ asmlinkage int vprintk(const char *fmt, va_list args) switch (c) { case '0' ... '7': /* loglevel */ current_log_level = c - '0'; + /* Fallthrough - make sure we're on a new line */ + case 'd': /* KERN_DEFAULT */ if (!new_text_line) { emit_log_char('\n'); new_text_line = 1; |