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authorJohn David Anglin <dave.anglin@bell.net>2013-02-03 23:02:49 +0000
committerHelge Deller <deller@gmx.de>2013-02-20 22:49:49 +0100
commitcca8e9026041544c0103b3037d8f03c1d2f4ae02 (patch)
tree4b23cc0d2e54414d2ef91509fb66c895651797e4 /drivers/parisc
parent6d2439d9558e259822fb487ec274cc9e362e6a81 (diff)
parisc: fixes and cleanups in page cache flushing (4/4)
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: John David Anglin <dave.anglin@bell.net> Signed-off-by: Helge Deller <deller@gmx.de>
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