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由 John David Anglin 提交于
CONFIG_PARISC_TMPALIAS enables clear_user_highpage and copy_user_highpage. These are essentially alternative implementations of clear_user_page and copy_user_page. They don't have anything to do with x86 high pages, but they build on the infrastructure to save a few instructions. Read the comment in clear_user_highpage as it is very important to the implementation. For this reason, there isn't any gain in using the TMPALIAS/highpage approach. Signed-off-by: NJohn David Anglin <dave.anglin@bell.net> Signed-off-by: NHelge Deller <deller@gmx.de>
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