tree 7cd7a0cc3dd7fffeae5ed8e98ff57b709247c9e5
parent a9162f238a84ee05b09ea4b0ebd97fb20448c28c
author Carsten Otte <cotte@de.ibm.com> 1319984221 +0100
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1319984204 +0100

[S390] fix list corruption in gmap reverse mapping

This introduces locking via mm->page_table_lock to protect
the rmap list for guest mappings from being corrupted by concurrent
operations.

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