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linux/arch/mips/mm
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Thomas Bogendoerfer 50c25ee97c Revert "MIPS: make userspace mapping young by default" 
This reverts commit f685a533a7fab35c5d069dcd663f59c8e4171a75.

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: f685a533a7f ("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
…
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: 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