tree 2337ff84522741e9101b9a0a4cf3045a424561d3
parent b11b53342773361f3353b285eb6a3fd6074e7997
author Martin Schwidefsky <schwidefsky@de.ibm.com> 1260186704 +0100
committer Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> 1260186693 +0100

[S390] Improve notify_page_fault implementation.

notify_page_fault does a preempt_disable/preempt_enable for each
fault generated by a kernel access to user space. If kprobes
is not active that is unnecessary since the interrupts are not
reenabled yet. To play safe repeat the kprobe_running check after
preempt_disable().

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>