The patch titled
Subject: kexec: use core_param for crash_kexec_post_notifiers boot option
has been added to the -mm tree. Its filename is
kexec-use-core_param-for-crash_kexec_post_notifiers-boot-option.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/kexec-use-core_param-for-crash_kexec_post_notifiers-boot-option.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/kexec-use-core_param-for-crash_kexec_post_notifiers-boot-option.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Hidehiro Kawai <hidehiro.kawai.ez@xxxxxxxxxxx>
Subject: kexec: use core_param for crash_kexec_post_notifiers boot option
crash_kexec_post_notifiers ia a boot option which controls whether the 1st
kernel calls panic notifiers or not before booting the 2nd kernel.
However, there is no need to limit it to being modifiable only at boot
time. So, use core_param instead of early_param.
Link: http://lkml.kernel.org/r/20160705113327.5864.43139.stgit@softrs
Signed-off-by: Hidehiro Kawai <hidehiro.kawai.ez@xxxxxxxxxxx>
Cc: Dave Young <dyoung@xxxxxxxxxx>
Cc: Baoquan He <bhe@xxxxxxxxxx>
Cc: Vivek Goyal <vgoyal@xxxxxxxxxx>
Cc: Eric Biederman <ebiederm@xxxxxxxxxxxx>
Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/panic.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff -puN kernel/panic.c~kexec-use-core_param-for-crash_kexec_post_notifiers-boot-option kernel/panic.c
--- a/kernel/panic.c~kexec-use-core_param-for-crash_kexec_post_notifiers-boot-option
+++ a/kernel/panic.c
@@ -134,6 +134,7 @@ void panic(const char *fmt, ...)
long i, i_next = 0;
int state = 0;
int old_cpu, this_cpu;
+ bool _crash_kexec_post_notifiers = crash_kexec_post_notifiers;
/*
* Disable local interrupts. This will prevent panic_smp_self_stop
@@ -186,7 +187,7 @@ void panic(const char *fmt, ...)
*
* Bypass the panic_cpu check and call __crash_kexec directly.
*/
- if (!crash_kexec_post_notifiers) {
+ if (!_crash_kexec_post_notifiers) {
printk_nmi_flush_on_panic();
__crash_kexec(NULL);
}
@@ -212,7 +213,7 @@ void panic(const char *fmt, ...)
*
* Bypass the panic_cpu check and call __crash_kexec directly.
*/
- if (crash_kexec_post_notifiers)
+ if (_crash_kexec_post_notifiers)
__crash_kexec(NULL);
bust_spinlocks(0);
@@ -592,13 +593,7 @@ EXPORT_SYMBOL(__stack_chk_fail);
core_param(panic, panic_timeout, int, 0644);
core_param(pause_on_oops, pause_on_oops, int, 0644);
core_param(panic_on_warn, panic_on_warn, int, 0644);
-
-static int __init setup_crash_kexec_post_notifiers(char *s)
-{
- crash_kexec_post_notifiers = true;
- return 0;
-}
-early_param("crash_kexec_post_notifiers", setup_crash_kexec_post_notifiers);
+core_param(crash_kexec_post_notifiers, crash_kexec_post_notifiers, bool, 0644);
static int __init oops_setup(char *s)
{
_
Patches currently in -mm which might be from hidehiro.kawai.ez@xxxxxxxxxxx are
x86-panic-replace-smp_send_stop-with-kdump-friendly-version.patch
kexec-use-core_param-for-crash_kexec_post_notifiers-boot-option.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
