summaryrefslogtreecommitdiffstats
path: root/include/uapi/linux/memfd.h
diff options
context:
space:
mode:
authorAnshuman Khandual2018-10-06 00:51:54 +0200
committerGreg Kroah-Hartman2018-10-06 01:32:04 +0200
commit20916d4636a9b3c1bf562b305f91d126771edaf9 (patch)
tree62f074f581ff5129f89e38371dbffe121d200f7e /include/uapi/linux/memfd.h
parentmm/migrate.c: split only transparent huge pages when allocation fails (diff)
downloadkernel-qcow2-linux-20916d4636a9b3c1bf562b305f91d126771edaf9.tar.gz
kernel-qcow2-linux-20916d4636a9b3c1bf562b305f91d126771edaf9.tar.xz
kernel-qcow2-linux-20916d4636a9b3c1bf562b305f91d126771edaf9.zip
mm/hugetlb: add mmap() encodings for 32MB and 512MB page sizes
ARM64 architecture also supports 32MB and 512MB HugeTLB page sizes. This just adds mmap() system call argument encoding for them. Link: http://lkml.kernel.org/r/1537841300-6979-1-git-send-email-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Acked-by: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Will Deacon <will.deacon@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi/linux/memfd.h')
-rw-r--r--include/uapi/linux/memfd.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/memfd.h b/include/uapi/linux/memfd.h
index 015a4c0bbb47..7a8a26751c23 100644
--- a/include/uapi/linux/memfd.h
+++ b/include/uapi/linux/memfd.h
@@ -25,7 +25,9 @@
#define MFD_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB
#define MFD_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB
#define MFD_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB
+#define MFD_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB
#define MFD_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB
+#define MFD_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB
#define MFD_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB
#define MFD_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB
#define MFD_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB