git.maquefel.me Git - linux.git/commit

author	Alexander Gordeev <agordeev@linux.ibm.com>
	Thu, 6 May 2021 14:26:53 +0000 (16:26 +0200)
committer	Vasily Gorbik <gor@linux.ibm.com>
	Mon, 7 Jun 2021 15:07:00 +0000 (17:07 +0200)
commit	587704efb3dea5685a2f571b75bd3dc47f73fec1
tree	5201a0c2078733d0b8ec057833c3e3112e8d5f03	tree \| snapshot
parent	5789284710aa121416524acc54ac0d8c27c3c2ef	commit \| diff

s390/smp: do not preserve boot CPU lowcore on hotplug

Once the kernel is running the boot CPU lowcore becomes
freeable and does not differ from the secondary CPU ones
in any way. Make use of it and do not preserve the boot
CPU lowcore on unplugging. That allows returning unused
memory when the boot CPU is offline and makes the code
more clear.

Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>