tree 56bec1c2155be70d4202c4096fbb5eca0fad1bac
parent 80217147a3d80c8a4e48f06e2f6e965455f3fe2a
author Heiko Carstens <heiko.carstens@de.ibm.com> 1288015812 +0200
committer Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> 1288015815 +0200

[S390] cpu hotplug/idle: move cpu_die call to enabled context

There is no difference if cpu_die is called from enabled or disabled
context. Except that the fast_gup code might be called via
cpu_die -> idle_task_exit -> __mm_drop -> crst_table_free. Which in
turn grabs and releases a spinlock using the _bh ops, which is not
allowed in irq disabled context, since spin_unlock_bh will
unconditionally enable interrupts again.
To get rid of the warning emitted by the softirq code just move the
code to enabled context.

In this case this doesn't fix a bug, we just get rid of a warning.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>