Zi Yan aa5fe31b6b mips: use nth_page() in place of direct struct page manipulation ...

__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>

2023-10-04 10:32:29 -07:00

..

c-octeon.c

MIPS: c-octeon: Provide alternative SMP cache flush function

2023-04-05 09:45:09 +02:00

c-r3k.c

MIPS: mm: Remove local_cache_flush_page

2023-04-05 10:08:53 +02:00

c-r4k.c

mips: implement the new page table range API

2023-08-24 16:20:22 -07:00

cache.c

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

2023-10-04 10:32:29 -07:00

cerr-sb1.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156

2019-05-30 11:26:35 -07:00

cex-gen.S

…

cex-oct.S

…

cex-sb1.S

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156

2019-05-30 11:26:35 -07:00

context.c

MIPS: mm: Use the bitmap API to allocate bitmaps

2022-07-11 10:28:12 +02:00

dma-noncoherent.c

MIPS: mm: XBurst CPU requires sync after DMA

2021-06-01 11:44:46 +02:00

extable.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

fault.c

mips/mm: Convert to using lock_mm_and_find_vma()

2023-06-24 14:12:58 -07:00

highmem.c

mips/mm/highmem: Switch to generic kmap atomic

2020-11-06 23:14:56 +01:00

hugetlbpage.c

hugetlb: pass vma into huge_pte_alloc() and huge_pmd_share()

2021-05-05 11:27:20 -07:00

init.c

mips: implement the new page table range API

2023-08-24 16:20:22 -07:00

ioremap64.c

MIPS: move ioremap_prot und iounmap out of line

2020-04-19 16:12:31 +02:00

ioremap.c

MIPS: use ioremap_page_range

2020-04-19 16:13:18 +02:00

maccess.c

MIPS: uaccess: Added __get/__put_kernel_nofault

2021-04-06 14:36:56 +02:00

Makefile

MIPS: Remove TX39XX support

2022-03-01 10:07:22 +01:00

mmap.c

mips: use generic mmap top-down layout and brk randomization

2019-09-24 15:54:12 -07:00

page-funcs.S

mips: replace #include <asm/export.h> with #include <linux/export.h>

2023-08-15 10:22:23 +02:00

page.c

MIPS: remove asm/war.h

2022-02-22 09:35:49 +01:00

pgtable-32.c

mips: implement the new page table range API

2023-08-24 16:20:22 -07:00

pgtable-64.c

mips: implement the new page table range API

2023-08-24 16:20:22 -07:00

pgtable.c

mips: convert various functions to use ptdescs

2023-08-21 13:37:56 -07:00

physaddr.c

MIPS: Fixed __debug_virt_addr_valid()

2022-07-15 14:22:51 +02:00

sc-debugfs.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

sc-ip22.c

mm: don't include asm/pgtable.h if linux/mm.h is already included

2020-06-09 09:39:13 -07:00

sc-mips.c

mips: fix Section mismatch in reference

2020-12-14 16:39:42 +01:00

sc-r5k.c

mm: don't include asm/pgtable.h if linux/mm.h is already included

2020-06-09 09:39:13 -07:00

sc-rm7k.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

tlb-funcs.S

mips: replace #include <asm/export.h> with #include <linux/export.h>

2023-08-15 10:22:23 +02:00

tlb-r3k.c

MIPS: Remove TX39XX support

2022-03-01 10:07:22 +01:00

tlb-r4k.c

mips: add pte_unmap() to balance pte_offset_map()

2023-06-19 16:19:07 -07:00

tlbex-fault.S

MIPS: Add DWARF unwinding to assembly

2017-09-06 11:01:52 +02:00

tlbex.c

mips: implement the new page table range API

2023-08-24 16:20:22 -07:00

uasm-micromips.c

mips: bpf: implement jitting of BPF_ALU | BPF_ARSH | BPF_X

2018-12-07 13:30:48 -08:00

uasm-mips.c

mips, uasm: Enable muhu opcode for MIPS R6

2021-10-06 12:28:02 -07:00

uasm.c

mips, uasm: Enable muhu opcode for MIPS R6

2021-10-06 12:28:02 -07:00