Vlastimil Babka 080fe2068e mm, hugetlb: don't require CMA for runtime gigantic pages ... Commit 944d9fec8d ("hugetlb: add support for gigantic page allocation at runtime") has added the runtime gigantic page allocation via alloc_contig_range(), making this support available only when CONFIG_CMA is enabled. Because it doesn't depend on MIGRATE_CMA pageblocks and the associated infrastructure, it is possible with few simple adjustments to require only CONFIG_MEMORY_ISOLATION instead of full CONFIG_CMA. After this patch, alloc_contig_range() and related functions are available and used for gigantic pages with just CONFIG_MEMORY_ISOLATION enabled. Note CONFIG_CMA selects CONFIG_MEMORY_ISOLATION. This allows supporting runtime gigantic pages without the CMA-specific checks in page allocator fastpaths. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Cc: Luiz Capitulino <lcapitulino@redhat.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2016-02-05 18:10:40 -08:00
..
boot	UBSAN: run-time undefined behavior sanity checker	2016-01-20 17:09:18 -08:00
configs
crypto	crypto: chacha20-ssse3 - Align stack pointer to 64 bytes	2016-01-25 21:47:45 +08:00
entry	UBSAN: run-time undefined behavior sanity checker	2016-01-20 17:09:18 -08:00
ia32
include	Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-01-31 16:17:19 -08:00
kernel	Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-01-31 16:17:19 -08:00
kvm	kvm: rename pfn_t to kvm_pfn_t	2016-01-15 17:56:32 -08:00
lguest
lib
math-emu
mm	mm, hugetlb: don't require CMA for runtime gigantic pages	2016-02-05 18:10:40 -08:00
net
oprofile
pci	PCI changes for the v4.5 merge window:	2016-01-21 11:52:16 -08:00
platform	Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-01-31 16:17:19 -08:00
power
purgatory
ras
realmode	UBSAN: run-time undefined behavior sanity checker	2016-01-20 17:09:18 -08:00
tools
um	virtio: barrier rework+fixes	2016-01-18 16:44:24 -08:00
video
xen
.gitignore
Kbuild
Kconfig	Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-01-31 16:17:19 -08:00
Kconfig.cpu
Kconfig.debug
Makefile
Makefile.um
Makefile_32.cpu