Zi Yan df5062f081 mips: use nth_page() in place of direct struct page manipulation ...

commit aa5fe31b6b upstream.

__flush_dcache_pages() is called during hugetlb migration via
migrate_pages() -> migrate_hugetlbs() -> unmap_and_move_huge_page() ->
move_to_new_folio() -> flush_dcache_folio().  And with hugetlb and without
sparsemem vmemmap, struct page is not guaranteed to be contiguous beyond a
section.  Use nth_page() instead.

Without the fix, a wrong address might be used for data cache page flush.
No bug is reported. The fix comes from code inspection.

Link: https://lkml.kernel.org/r/20230913201248.452081-6-zi.yan@sent.com
Fixes: 15fa3e8e32 ("mips: implement the new page table range API")
Signed-off-by: Zi Yan <ziy@nvidia.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-11-28 17:20:05 +00:00

..

alpha

Merge tag 'kbuild-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

2023-09-05 11:01:47 -07:00

arc

Merge tag 'arc-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

2023-09-04 15:38:24 -07:00

arm

ARM: 9320/1: fix stack depot IRQ stack filter

2023-11-28 17:19:43 +00:00

arm64

arm64: dts: qcom: ipq6018: Fix tcsr_mutex register size

2023-11-28 17:20:03 +00:00

csky

Merge tag 'csky-for-linus-6.6-2' of https://github.com/c-sky/csky-linux

2023-09-01 08:02:45 -07:00

hexagon

Merge tag 'x86_shstk_for_6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2023-08-31 12:20:12 -07:00

ia64

cpu-hotplug: Provide prototypes for arch CPU registration

2023-10-11 14:27:37 +02:00

loongarch

LoongArch: Disable WUC for pgprot_writecombine() like ioremap_wc()

2023-10-18 08:42:52 +08:00

m68k

Merge tag 'ata-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata

2023-09-05 12:37:28 -07:00

microblaze

Merge tag 'microblaze-v6.6' of git://git.monstr.eu/linux-2.6-microblaze

2023-09-05 10:15:22 -07:00

mips

mips: use nth_page() in place of direct struct page manipulation

2023-11-28 17:20:05 +00:00

nios2

Merge tag 'x86_shstk_for_6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2023-08-31 12:20:12 -07:00

openrisc

Merge tag 'for-linus' of https://github.com/openrisc/linux

2023-09-05 10:09:31 -07:00

parisc

parisc/pdc: Add width field to struct pdc_model

2023-11-28 17:20:00 +00:00

powerpc

powerpc/perf: Fix disabling BHRB and instruction sampling

2023-11-28 17:19:55 +00:00

riscv

riscv: split cache ops out of dma-noncoherent.c

2023-11-28 17:19:49 +00:00

s390

Merge tag 's390-6.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

2023-10-21 10:11:11 -07:00

sh

sh: bios: Revive earlyprintk support

2023-11-20 11:59:22 +01:00

sparc

sparc32: fix a braino in fault handling in csum_and_copy_..._user()

2023-10-27 20:06:06 -04:00

um

Merge tag 'uml-for-linus-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux

2023-09-04 11:32:21 -07:00

x86

acpi/processor: sanitize _OSC/_PDC capabilities for Xen dom0

2023-11-28 17:19:57 +00:00

xtensa

xtensa: boot/lib: fix function prototypes

2023-09-20 05:03:30 -07:00

.gitignore

…

Kconfig

Merge tag 'x86_shstk_for_6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2023-08-31 12:20:12 -07:00