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authorAlex Elder <elder@linaro.org>2014-08-06 16:09:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-06 18:01:24 -0700
commit0b90fec3b990b50d77944bc73c1ba4b031dfa52f (patch)
treef070aac1a69e5af5e79b211caf343b082980894e
parent42a9dc0b3d0f749375c767c7d5cab56e89160576 (diff)
downloadop-kernel-dev-0b90fec3b990b50d77944bc73c1ba4b031dfa52f.zip
op-kernel-dev-0b90fec3b990b50d77944bc73c1ba4b031dfa52f.tar.gz
printk: fix some comments
Fix a few comments that don't accurately describe their corresponding code. It also fixes some minor typographical errors. Signed-off-by: Alex Elder <elder@linaro.org> Reviewed-by: Petr Mladek <pmladek@suse.cz> Cc: Andi Kleen <ak@linux.intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Jan Kara <jack@suse.cz> Cc: John Stultz <john.stultz@linaro.org> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--kernel/printk/printk.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 770ed48..4bae344 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -113,9 +113,9 @@ static int __down_trylock_console_sem(unsigned long ip)
* This is used for debugging the mess that is the VT code by
* keeping track if we have the console semaphore held. It's
* definitely not the perfect debug tool (we don't know if _WE_
- * hold it are racing, but it helps tracking those weird code
- * path in the console code where we end up in places I want
- * locked without the console sempahore held
+ * hold it and are racing, but it helps tracking those weird code
+ * paths in the console code where we end up in places I want
+ * locked without the console sempahore held).
*/
static int console_locked, console_suspended;
@@ -146,8 +146,8 @@ static int console_may_schedule;
* the overall length of the record.
*
* The heads to the first and last entry in the buffer, as well as the
- * sequence numbers of these both entries are maintained when messages
- * are stored..
+ * sequence numbers of these entries are maintained when messages are
+ * stored.
*
* If the heads indicate available messages, the length in the header
* tells the start next message. A length == 0 for the next message
@@ -345,7 +345,7 @@ static int log_make_free_space(u32 msg_size)
while (log_first_seq < log_next_seq) {
if (logbuf_has_space(msg_size, false))
return 0;
- /* drop old messages until we have enough continuous space */
+ /* drop old messages until we have enough contiguous space */
log_first_idx = log_next(log_first_idx);
log_first_seq++;
}
@@ -1517,7 +1517,7 @@ static struct cont {
struct task_struct *owner; /* task of first print*/
u64 ts_nsec; /* time of first print */
u8 level; /* log level of first message */
- u8 facility; /* log level of first message */
+ u8 facility; /* log facility of first message */
enum log_flags flags; /* prefix, newline flags */
bool flushed:1; /* buffer sealed and committed */
} cont;
@@ -1922,11 +1922,12 @@ static int __add_preferred_console(char *name, int idx, char *options,
return 0;
}
/*
- * Set up a list of consoles. Called from init/main.c
+ * Set up a console. Called via do_early_param() in init/main.c
+ * for each "console=" parameter in the boot command line.
*/
static int __init console_setup(char *str)
{
- char buf[sizeof(console_cmdline[0].name) + 4]; /* 4 for index */
+ char buf[sizeof(console_cmdline[0].name) + 4]; /* 4 for "ttyS" */
char *s, *options, *brl_options = NULL;
int idx;
@@ -2086,8 +2087,8 @@ EXPORT_SYMBOL(console_lock);
/**
* console_trylock - try to lock the console system for exclusive use.
*
- * Tried to acquire a lock which guarantees that the caller has
- * exclusive access to the console system and the console_drivers list.
+ * Try to acquire a lock which guarantees that the caller has exclusive
+ * access to the console system and the console_drivers list.
*
* returns 1 on success, and 0 on failure to acquire the lock.
*/
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