Fix documentation of sysrq-q

I fell into the trap recently that it only dumps hrtimers instead of
all timers. Fix the documentation.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: torvalds@linux-foundation.org
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

2 files changed, 3 insertions, 2 deletions

diff --git a/Documentation/sysrq.txt b/Documentation/sysrq.txt
index 5ce0952aa065..49378a9f2b5f 100644
--- a/Documentation/sysrq.txt
+++ b/Documentation/sysrq.txt
@@ -95,7 +95,8 @@ On all -  write a character to /proc/sysrq-trigger.  e.g.:
 
 'p'     - Will dump the current registers and flags to your console.
 
-'q'     - Will dump a list of all running timers.
+'q'     - Will dump a list of all running hrtimers.
+          WARNING: Does not cover any other timers
 
 'r'     - Turns off keyboard raw mode and sets it to XLATE.
 
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index dce4cc0e6953..d0c0d64ed366 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -168,7 +168,7 @@ static void sysrq_handle_show_timers(int key, struct tty_struct *tty)
 static struct sysrq_key_op sysrq_show_timers_op = {
         .handler        = sysrq_handle_show_timers,
         .help_msg       = "show-all-timers(Q)",
-        .action_msg     = "Show Pending Timers",
+        .action_msg     = "Show pending hrtimers (no others)",
 };
 
 static void sysrq_handle_mountro(int key, struct tty_struct *tty)