The patch titled
panic-keep-blinking-in-spite-of-long-spin-timer-mode-update
has been added to the -mm tree. Its filename is
panic-keep-blinking-in-spite-of-long-spin-timer-mode-update.patch
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------------------------------------------------------
Subject: panic-keep-blinking-in-spite-of-long-spin-timer-mode-update
From: TAMUKI Shoichi <tamuki@xxxxxxxxxxx>
- brush up the explanation of panicblink= in kernel-parameters.txt
- use the clamp() macro
Signed-off-by: TAMUKI Shoichi <tamuki@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/kernel-parameters.txt | 6 ++----
kernel/panic.c | 3 +--
2 files changed, 3 insertions(+), 6 deletions(-)
diff -puN Documentation/kernel-parameters.txt~panic-keep-blinking-in-spite-of-long-spin-timer-mode-update Documentation/kernel-parameters.txt
--- a/Documentation/kernel-parameters.txt~panic-keep-blinking-in-spite-of-long-spin-timer-mode-update
+++ a/Documentation/kernel-parameters.txt
@@ -1859,10 +1859,8 @@ and is between 256 and 4096 characters.
panic= [KNL] Kernel behaviour on panic
Format: <timeout>
- panicblink= [KNL] The speed of panic blink (default is 12 wpm)
- The period of panic blink can be computed by the
- formula T = 7200 / W, where T is the period in milli-
- seconds, W is the speed in wpm (words per minute).
+ panicblink= [KNL] The speed of panic blink (range is 1 to 100, the
+ lower the slower, the higher the faster, default is 12)
Should be 5 or less when running under a hypervisor
parkbd.port= [HW] Parallel port number the keyboard adapter is
diff -puN kernel/panic.c~panic-keep-blinking-in-spite-of-long-spin-timer-mode-update kernel/panic.c
--- a/kernel/panic.c~panic-keep-blinking-in-spite-of-long-spin-timer-mode-update
+++ a/kernel/panic.c
@@ -122,8 +122,7 @@ NORET_TYPE void panic(const char * fmt,
bust_spinlocks(0);
- if (panic_blink_wpm <= 0 || panic_blink_wpm > 100)
- panic_blink_wpm = 12;
+ panic_blink_wpm = clamp(panic_blink_wpm, 1, 100);
if (!panic_blink)
panic_blink = no_blink;
_
Patches currently in -mm which might be from tamuki@xxxxxxxxxxx are
panic-keep-blinking-in-spite-of-long-spin-timer-mode.patch
panic-keep-blinking-in-spite-of-long-spin-timer-mode-update.patch
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