linux/arch/powerpc
Paul Mackerras 1f7bf02876 powerpc: Implement __get_user_pages_fast()
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>
2013-08-14 14:57:14 +10:00
..
boot powerpc/85xx: add the P1020RDB-PD DTS support 2013-08-07 18:38:07 -05:00
configs Merge remote-tracking branch 'scott/next' into next 2013-08-09 16:01:40 +10:00
crypto powerpc: Fix compile of sha1-powerpc-asm.S on 32-bit 2013-03-05 16:56:26 +11:00
include powerpc: Add smp_generic_cpu_bootable 2013-08-14 14:56:50 +10:00
kernel powerpc: Add smp_generic_cpu_bootable 2013-08-14 14:56:50 +10:00
kvm powerpc: Stop using non-architected shared_proc field in lppaca 2013-08-14 11:50:26 +10:00
lib powerpc: Fix single step emulation of 32bit overflowed branches 2013-06-20 16:55:13 +10:00
math-emu powerpc/math-emu: Fix decoding of some instructions 2013-06-20 17:05:05 +10:00
mm powerpc: Implement __get_user_pages_fast() 2013-08-14 14:57:14 +10:00
net ppc: bpf_jit: can call module_free() from any context 2013-05-20 14:03:50 -07:00
oprofile powerpc/perf: add 2 additional performance monitor counters for e6500 core 2013-08-07 18:38:03 -05:00
perf powerpc: Fix a number of sparse warnings 2013-08-14 11:50:24 +10:00
platforms powerpc: Convert platforms to smp_generic_cpu_bootable 2013-08-14 14:56:57 +10:00
sysdev powerpc/pci: fix PCI-e check link issue 2013-08-07 18:38:08 -05:00
xmon Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-05-02 10:16:16 -07:00
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-07-09 18:24:39 -07:00
Kconfig.debug Merge branch 'kconfig-diet' from Dave Hansen 2013-07-04 11:25:51 -07:00
Makefile powerpc/e500: Update compilation flags with core specific options 2013-08-07 18:49:44 -05:00
relocs_check.pl Fix warning typo "CONFIG_RELCOATABLE" 2013-05-29 15:11:30 +02:00