mirror of https://gitee.com/openkylin/linux.git
![]() Other architectures have a __get_user_pages_fast(), in addition to the regular get_user_pages_fast(), which doesn't call get_user_pages() on failure, and thus doesn't attempt to fault pages in or COW them. The generic KVM code uses __get_user_pages_fast() to detect whether a page for which we have only requested read access is actually writable. This provides an implementation of __get_user_pages_fast() by splitting the existing get_user_pages_fast() in two. With this, the generic KVM code will get the right answer instead of always considering such pages non-writable. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> |
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.. | ||
boot | ||
configs | ||
crypto | ||
include | ||
kernel | ||
kvm | ||
lib | ||
math-emu | ||
mm | ||
net | ||
oprofile | ||
perf | ||
platforms | ||
sysdev | ||
xmon | ||
Kconfig | ||
Kconfig.debug | ||
Makefile | ||
relocs_check.pl |