From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Mon, 6 Jun 2011 12:14:41 +0000 (+0200)
Subject: [S390] use generic RCU page-table freeing code
X-Git-Tag: v3.0-rc3~50^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=36409f6353fc2d7b6516e631415f938eadd92ffa;p=pandora-kernel.git

[S390] use generic RCU page-table freeing code

Replace the s390 specific rcu page-table freeing code with the
generic variant. This requires to duplicate the definition for the
struct mmu_table_batch as s390 does not use the generic tlb flush
code.

While we are at it remove the restriction that page table fragments
can not be reused after a single fragment has been freed with rcu
and split out allocation and freeing of page tables with pgstes.

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