mm: factor out common parts of write fault handling
Currently we duplicate handling of shared write faults in wp_page_reuse() and do_shared_fault(). Factor them out into a common function. Link: http://lkml.kernel.org/r/1479460644-25076-12-git-send-email-jack@suse.czSigned-off-by: NJan Kara <jack@suse.cz> Reviewed-by: NRoss Zwisler <ross.zwisler@linux.intel.com> Acked-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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