Thomas Bogendoerfer 50c25ee97c Revert "MIPS: make userspace mapping young by default" ...

This reverts commit f685a533a7.

The MIPS cache flush logic needs to know whether the mapping was already
established to decide how to flush caches.  This is done by checking the
valid bit in the PTE.  The commit above breaks this logic by setting the
valid in the PTE in new mappings, which causes kernel crashes.

Link: https://lkml.kernel.org/r/20210526094335.92948-1-tsbogend@alpha.franken.de
Fixes: f685a533a7 ("MIPS: make userspace mapping young by default")
Reported-by: Zhou Yanjie <zhouyanjie@wanyeetech.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Huang Pei <huangpei@loongson.cn>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2021-06-05 08:58:11 -07:00

..

c-octeon.c

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

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

c-r3k.c

mm: pgtable: add shortcuts for accessing kernel PMD and PTE

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

c-r4k.c

driver core: lift dma_default_coherent into common code

2021-02-13 09:51:45 +01:00

c-tx39.c

mm: pgtable: add shortcuts for accessing kernel PMD and PTE

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

cache.c

Revert "MIPS: make userspace mapping young by default"

2021-06-05 08:58:11 -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

MIPS: Whitespace cleanup.

2013-02-01 10:00:22 +01:00

cex-oct.S

MIPS: Whitespace cleanup.

2013-02-01 10:00:22 +01:00

cex-sb1.S

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

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

context.c

MIPS: Export mm switching functions used by KVM

2019-02-05 11:44:44 -08:00

dma-noncoherent.c

MIPS: remove CONFIG_DMA_PERDEV_COHERENT

2021-02-13 09:51:46 +01:00

extable.c

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

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

fault.c

MIPS: mm: abort uaccess retries upon fatal signal

2021-01-22 11:34:19 +01:00

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

mm: move mem_init_print_info() into mm_init()

2021-04-30 11:20:42 -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: uaccess: Added __get/__put_kernel_nofault

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

mmap.c

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

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

page-funcs.S

MIPS: Export {copy, clear}_page functions alongside their definitions

2017-01-03 16:48:39 +01:00

page.c

MIPS: Convert R4600_V2_HIT_CACHEOP into a config option

2020-09-07 22:23:48 +02:00

pgtable-32.c

MIPS: do not call flush_tlb_all when setting pmd entry

2021-02-24 13:38:32 -08:00

pgtable-64.c

MIPS: do not call flush_tlb_all when setting pmd entry

2021-02-24 13:38:32 -08:00

pgtable.c

MIPS: Move pgd_alloc() out of header

2017-02-02 15:06:26 +00:00

physaddr.c

MIPS: Add support for CONFIG_DEBUG_VIRTUAL

2021-04-06 14:34:02 +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: Consistently declare TLB functions

2018-08-10 17:27:53 -07:00

tlb-r3k.c

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

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

tlb-r4k.c

MIPS: export has_transparent_hugepage() for modules

2020-10-27 12:44:34 +01:00

tlbex-fault.S

MIPS: Add DWARF unwinding to assembly

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

tlbex.c

MIPS: clean up CONFIG_MIPS_PGD_C0_CONTEXT handling

2021-03-14 14:08:15 +01:00

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: Add div, mul and sel instructions for mipsr6

2019-03-19 15:26:06 -07:00

uasm.c

MIPS: Get rid of CAVIUM_OCTEON_DCACHE_PREFETCH_WAR

2020-09-07 22:25:16 +02:00