Dominik Dingel bea41197ea s390/mm: make hugepages_supported a boot time decision ... There is a potential bug with KVM and hugetlbfs if the hardware does not support hugepages (EDAT1). We fix this by making EDAT1 a hard requirement for hugepages and therefore removing and simplifying code. As s390, with the sw-emulated hugepages, was the only user of arch_prepare/release_hugepage I also removed theses calls from common and other architecture code. This patch (of 5): By dropping support for hugepages on machines which do not have the hardware feature EDAT1, we fix a potential s390 KVM bug. The bug would happen if a guest is backed by hugetlbfs (not supported currently), but does not get pagetables with PGSTE. This would lead to random memory overwrites. Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2015-06-25 17:00:35 -07:00
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appldata
boot
configs
crypto	Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2015-05-22 14:26:36 -07:00
hypfs	s390/sclp: unify basic sclp access by exposing "struct sclp"	2015-05-13 09:58:17 +02:00
include	s390/mm: make hugepages_supported a boot time decision	2015-06-25 17:00:35 -07:00
kernel	s390/mm: make hugepages_supported a boot time decision	2015-06-25 17:00:35 -07:00
kvm	The bulk of the changes here is for x86. And for once it's not	2015-06-24 09:36:49 -07:00
lib
mm	s390/mm: make hugepages_supported a boot time decision	2015-06-25 17:00:35 -07:00
net	s390/bpf: implement bpf_tail_call() helper	2015-06-09 11:47:10 -07:00
oprofile
pci	s390/pci: improve handling of hotplug event 0x301	2015-06-18 15:45:54 +02:00
defconfig
Kbuild
Kconfig
Kconfig.debug
Makefile