linux/arch/x86
Pallipadi, Venkatesh 9cdec04938 x86, PAT, PCI: Change vma prot in pci_mmap to reflect inherited prot
While looking at the issue in the thread:

  http://marc.info/?l=dri-devel&m=123606627824556&w=2

noticed a bug in pci PAT code and memory type setting.

PCI mmap code did not set the proper protection in vma, when it
inherited protection in reserve_memtype. This bug only affects
the case where there exists a WC mapping before X does an mmap
with /proc or /sys pci interface. This will cause X userlevel
mmap from /proc or /sysfs to fail on fork.

Reported-by: Kevin Winchester <kjwinchester@gmail.com>
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Dave Airlie <airlied@redhat.com>
Cc: <stable@kernel.org>
LKML-Reference: <20090323190720.GA16831@linux-os.sc.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-24 10:42:35 +01:00
..
boot x86, setup: fix the setting of 480-line VGA modes 2009-03-18 16:54:05 -07:00
configs Merge branches 'x86/apic', 'x86/defconfig', 'x86/memtest', 'x86/mm' and 'linus' into x86/core 2009-02-26 06:31:32 +01:00
crypto
ia32
include/asm x86: with the last user gone, remove set_pte_present 2009-03-19 14:04:19 +01:00
kernel Merge branches 'x86/cleanups', 'x86/mm', 'x86/setup' and 'linus' into x86/core 2009-03-20 10:34:22 +01:00
kvm
lguest x86-32: use brk segment for allocating initial kernel pagetable 2009-03-14 17:23:47 -07:00
lib x86: memcpy, clean up 2009-03-12 12:21:17 +01:00
math-emu Merge branch 'linus' into core/percpu 2009-03-11 10:29:28 +01:00
mm x86/32: no need to use set_pte_present in set_pte_vaddr 2009-03-19 14:04:18 +01:00
oprofile x86: oprofile: don't set counter width from cpuid on Core2 2009-03-03 12:04:22 +01:00
pci x86, PAT, PCI: Change vma prot in pci_mmap to reflect inherited prot 2009-03-24 10:42:35 +01:00
power
vdso
video
xen x86: with the last user gone, remove set_pte_present 2009-03-19 14:04:19 +01:00
Kconfig Merge branches 'x86/apic', 'x86/asm', 'x86/cleanups', 'x86/debug', 'x86/kconfig', 'x86/mm', 'x86/ptrace', 'x86/setup' and 'x86/urgent'; commit 'v2.6.29-rc8' into x86/core 2009-03-14 16:25:40 +01:00
Kconfig.cpu x86/centaur: merge 32 & 64 bit version 2009-03-14 16:27:29 +01:00
Kconfig.debug
Makefile x86: use targets in the boot Makefile instead of CLEAN_FILES 2009-03-12 13:43:14 -07:00
Makefile_32.cpu