powerpc: pSeries_lpar_hpte_remove fails from Adjunct partition being performed before...
authorMichael Wolf <mjw@linux.vnet.ibm.com>
Fri, 5 Apr 2013 10:41:40 +0000 (10:41 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 12 Apr 2013 16:38:45 +0000 (09:38 -0700)
commit97bab7f423c780683542c953aa2c16088c036a4a
tree1fec6c0d73c6ebf935130f129a7c6ec2f93912fc
parentb81d3241838167667fc1ec9bb5670d5f661a3628
powerpc: pSeries_lpar_hpte_remove fails from Adjunct partition being performed before the ANDCOND test

commit 9fb2640159f9d4f5a2a9d60e490482d4cbecafdb upstream.

Some versions of pHyp will perform the adjunct partition test before the
ANDCOND test.  The result of this is that H_RESOURCE can be returned and
cause the BUG_ON condition to occur. The HPTE is not removed.  So add a
check for H_RESOURCE, it is ok if this HPTE is not removed as
pSeries_lpar_hpte_remove is looking for an HPTE to remove and not a
specific HPTE to remove.  So it is ok to just move on to the next slot
and try again.

Signed-off-by: Michael Wolf <mjw@linux.vnet.ibm.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/powerpc/platforms/pseries/lpar.c