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mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-14 22:44:27 +08:00
linux/arch/s390/mm
Punit Agrawal 7868a2087e mm/hugetlb: add size parameter to huge_pte_offset()
A poisoned or migrated hugepage is stored as a swap entry in the page
tables.  On architectures that support hugepages consisting of
contiguous page table entries (such as on arm64) this leads to ambiguity
in determining the page table entry to return in huge_pte_offset() when
a poisoned entry is encountered.

Let's remove the ambiguity by adding a size parameter to convey
additional information about the requested address.  Also fixup the
definition/usage of huge_pte_offset() throughout the tree.

Link: http://lkml.kernel.org/r/20170522133604.11392-4-punit.agrawal@arm.com
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Acked-by: Steve Capper <steve.capper@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: James Hogan <james.hogan@imgtec.com> (odd fixer:METAG ARCHITECTURE)
Cc: Ralf Baechle <ralf@linux-mips.org> (supporter:MIPS)
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-06 16:24:34 -07:00
..
cmm.c s390: mm: Audit and remove any unnecessary uses of module.h 2017-02-17 07:40:35 +01:00
dump_pagetables.c s390/mm: implement 5 level pages tables 2017-06-12 16:25:54 +02:00
extmem.c s390: mm: Audit and remove any unnecessary uses of module.h 2017-02-17 07:40:35 +01:00
fault.c s390/fault: use _ASCE_ORIGIN instead of PAGE_MASK 2017-06-12 16:25:59 +02:00
gmap.c s390/mm: add __rcu annotations 2017-06-12 16:25:55 +02:00
gup.c s390/mm: implement 5 level pages tables 2017-06-12 16:25:54 +02:00
hugetlbpage.c mm/hugetlb: add size parameter to huge_pte_offset() 2017-07-06 16:24:34 -07:00
init.c mm, memory_hotplug: replace for_device by want_memblock in arch_add_memory 2017-07-06 16:24:32 -07:00
maccess.c s390/maccess: reduce stnsm instructions 2016-02-17 09:05:04 +01:00
Makefile s390/extable: use generic search and sort routines 2016-03-22 15:36:02 -07:00
mem_detect.c s390: mm: Audit and remove any unnecessary uses of module.h 2017-02-17 07:40:35 +01:00
mmap.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-07-03 15:39:36 -07:00
page-states.c s390/kvm: Add PGSTE manipulation functions 2017-04-20 13:33:08 +02:00
pageattr.c s390/mm: implement 5 level pages tables 2017-06-12 16:25:54 +02:00
pgalloc.c s390/mm: implement 5 level pages tables 2017-06-12 16:25:54 +02:00
pgtable.c s390/mm: implement 5 level pages tables 2017-06-12 16:25:54 +02:00
vmem.c s390/mm: implement 5 level pages tables 2017-06-12 16:25:54 +02:00