tree aef2f02074095935a21e2d57c9b21859016d8a8c
parent f602f6d694a99a0141c066c8f0b360a0b3c16915
author Martin Schwidefsky <schwidefsky@de.ibm.com> 1296469804 +0100
committer Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> 1296469820 +0100

[S390] pgtable_list corruption

After page_table_free_rcu removed a page from the pgtable_list
page_table_free better not add it again. Otherwise a page_table_alloc
can reuse a page table fragment that is still in the rcu process.

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