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(parent: b11b533) | patch
[S390] Improve notify_page_fault implementation.
authorMartin Schwidefsky <schwidefsky@de.ibm.com>
Mon, 7 Dec 2009 11:51:44 +0000 (12:51 +0100)
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>
Mon, 7 Dec 2009 11:51:33 +0000 (12:51 +0100)
commit7ecb344ae80bc03397ded3b004e06ecfe32becf9
tree2337ff84522741e9101b9a0a4cf3045a424561d3tree | snapshot
parentb11b53342773361f3353b285eb6a3fd6074e7997commit | diff
[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>
arch/s390/mm/fault.c diff | blob | history
Full containers within linux kernel