linux-stable/arch
Baoquan He 3c9e76dbea x86/apic: Split disable_IO_APIC() into two functions to fix CONFIG_KEXEC_JUMP=y
Split  following patches disable_IO_APIC() will be broken up into
clear_IO_APIC() and restore_boot_irq_mode().

These two functions will be called separately where they are needed
to fix a regression introduced by:

  522e664644 ("x86/apic: Disable I/O APIC before shutdown of the local APIC").

While the CONFIG_KEXEC_JUMP=y code doesn't call lapic_shutdown() before jump
like kexec/kdump, so it's not impacted by commit 522e664644.

Hence here change clear_IO_APIC() as public, and replace disable_IO_APIC()
with clear_IO_APIC() and restore_boot_irq_mode() to keep CONFIG_KEXEC_JUMP=y
code unchanged in essence. No functional change.

Signed-off-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: douly.fnst@cn.fujitsu.com
Cc: joro@8bytes.org
Cc: prarit@redhat.com
Cc: uobergfe@redhat.com
Link: http://lkml.kernel.org/r/20180214054656.3780-3-bhe@redhat.com
[ Rewrote the changelog. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-02-17 11:47:44 +01:00
..
alpha
arc
arm
arm64
blackfin unify {de,}mangle_poll(), get rid of kernel-side POLL... 2018-02-11 14:37:22 -08:00
c6x
cris vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
frv unify {de,}mangle_poll(), get rid of kernel-side POLL... 2018-02-11 14:37:22 -08:00
h8300
hexagon
ia64 vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
m32r
m68k unify {de,}mangle_poll(), get rid of kernel-side POLL... 2018-02-11 14:37:22 -08:00
metag
microblaze
mips unify {de,}mangle_poll(), get rid of kernel-side POLL... 2018-02-11 14:37:22 -08:00
mn10300
nios2 nios2 update for v4.16-rc1 2018-02-11 13:52:32 -08:00
openrisc
parisc
powerpc vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
riscv
s390
score
sh
sparc unify {de,}mangle_poll(), get rid of kernel-side POLL... 2018-02-11 14:37:22 -08:00
tile
um
unicore32
x86 x86/apic: Split disable_IO_APIC() into two functions to fix CONFIG_KEXEC_JUMP=y 2018-02-17 11:47:44 +01:00
xtensa unify {de,}mangle_poll(), get rid of kernel-side POLL... 2018-02-11 14:37:22 -08:00
.gitignore
Kconfig