linux/arch/parisc
Huang Ying 69ebb83e13 mm: make __get_user_pages return -EHWPOISON for HWPOISON page optionally
Make __get_user_pages return -EHWPOISON for HWPOISON page only if
FOLL_HWPOISON is specified.  With this patch, the interested callers
can distinguish HWPOISON pages from general FAULT pages, while other
callers will still get -EFAULT for all these pages, so the user space
interface need not to be changed.

This feature is needed by KVM, where UCR MCE should be relayed to
guest for HWPOISON page, while instruction emulation and MMIO will be
tried for general FAULT page.

The idea comes from Andrew Morton.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-03-17 13:08:27 -03:00
..
configs kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
hpux clean statfs-like syscalls up 2011-03-14 09:15:28 -04:00
include/asm mm: make __get_user_pages return -EHWPOISON for HWPOISON page optionally 2011-03-17 13:08:27 -03:00
kernel Merge branch 'for-2.6.39' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2011-03-16 08:22:41 -07:00
lib parisc: add strict copy size checks (v2) 2010-03-06 22:54:09 +00:00
math-emu parisc: change to new flag variable 2010-10-21 21:07:47 -04:00
mm parisc: fix wrong page aligned size calculation in ioremapping code 2010-08-12 08:43:29 -07:00
oprofile
defpalo.conf
install.sh kbuild: use INSTALLKERNEL to select customized installkernel script 2009-09-20 12:18:14 +02:00
Kconfig parisc: Use generic irq Kconfig 2011-01-21 11:55:33 +01:00
Kconfig.debug parisc: add strict copy size checks (v2) 2010-03-06 22:54:09 +00:00
Makefile kbuild: use INSTALLKERNEL to select customized installkernel script 2009-09-20 12:18:14 +02:00
nm