From: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Date: Thu, 23 Apr 2009 11:58:07 +0000 (+0200)
Subject: [S390] appldata: avoid deadlock with appldata_mem
X-Git-Tag: v2.6.30-rc4~57^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b1ad171efa089ae26aba750d747d8149a4f860d5;p=pandora-kernel.git

[S390] appldata: avoid deadlock with appldata_mem

The appldata_ops callbacks are called with a spin_lock held. But the
appldata_mem callback then calls all_vm_events(), which calls
get_online_cpus(), which might sleep. This possible deadlock is fixed
by using a mutex instead of a spin_lock.

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

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