Martin Schwidefsky f1be77bb21 [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>

2011-01-31 11:30:20 +01:00

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