nds32: Disable local irq before calling cpu_dcache_wb_page in copy_user_highpage

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In order to ensure that all data in source page has been written back
to memory before copy_page, the local irq shall be disabled before
calling cpu_dcache_wb_page(). In addition, removing unneeded page
invalidation for 'to' page.

Signed-off-by: Vincent Chen <vincentc@andestech.com>
Reviewed-by: Greentime Hu <greentime@andestech.com>
Signed-off-by: Greentime Hu <greentime@andestech.com>

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Vincent Chen 2018-05-14 18:56:35 +08:00 • committed by Greentime Hu

parent 5b9f95699b

commit aaaaba5750

1 changed files with 1 additions and 3 deletions

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arch/nds32/mm/cacheflush.c

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