mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-28 23:24:50 +00:00
Code Issues Releases Wiki Activity
linux-stable/arch/s390
History
Aneesh Kumar K.V 0b6f15824c mm/vmemmap optimization: split hugetlb and devdax vmemmap optimization 
Arm disabled hugetlb vmemmap optimization [1] because hugetlb vmemmap
optimization includes an update of both the permissions (writeable to
read-only) and the output address (pfn) of the vmemmap ptes.  That is not
supported without unmapping of pte(marking it invalid) by some
architectures.

With DAX vmemmap optimization we don't require such pte updates and
architectures can enable DAX vmemmap optimization while having hugetlb
vmemmap optimization disabled.  Hence split DAX optimization support into
a different config.

s390, loongarch and riscv don't have devdax support.  So the DAX config is
not enabled for them.  With this change, arm64 should be able to select
DAX optimization

[1] commit 060a2c92d1 ("arm64: mm: hugetlb: Disable HUGETLB_PAGE_OPTIMIZE_VMEMMAP")

Link: https://lkml.kernel.org/r/20230724190759.483013-8-aneesh.kumar@linux.ibm.com
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-18 10:12:54 -07:00
..
appldata s390: include linux/io.h instead of asm/io.h 2023-07-03 11:19:40 +02:00
boot s390 updates for 6.5 merge window part 2 2023-07-06 13:18:30 -07:00
configs arch/*/configs/*defconfig: Replace AUTOFS4_FS by AUTOFS_FS 2023-07-29 14:08:22 -07:00
crypto s390/crypto: use kfree_sensitive() instead of kfree() 2023-07-20 16:48:56 +02:00
hypfs s390/hypfs: remove unused info_blk_hdr__pcpus() function 2022-11-23 16:24:07 +01:00
include s390: mm: convert to GENERIC_IOREMAP 2023-08-18 10:12:34 -07:00
kernel s390 updates for 6.5 merge window part 2 2023-07-06 13:18:30 -07:00
kvm KVM: s390: pv: simplify shutdown and fix race 2023-07-18 11:21:51 +02:00
lib s390: include linux/io.h instead of asm/io.h 2023-07-03 11:19:40 +02:00
mm mm: remove CONFIG_PER_VMA_LOCK ifdefs 2023-08-18 10:12:50 -07:00
net s390: consistently use .balign instead of .align 2023-06-28 13:57:09 +02:00
pci s390: mm: convert to GENERIC_IOREMAP 2023-08-18 10:12:34 -07:00
purgatory s390 updates for 6.5 merge window part 2 2023-07-06 13:18:30 -07:00
tools KVM: s390: Add facility 197 to the allow list 2022-07-13 15:25:25 +02:00
Kbuild kbuild: use more subdir- for visiting subdirectories while cleaning 2021-10-24 13:49:46 +09:00
Kconfig mm/vmemmap optimization: split hugetlb and devdax vmemmap optimization 2023-08-18 10:12:54 -07:00
Kconfig.debug s390/Kconfig.debug: fix indentation 2022-06-01 12:03:15 +02:00
Makefile s390/decompressor: fix misaligned symbol build error 2023-06-28 13:57:09 +02:00