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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/arch/mips/mm
История
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
..
Makefile MIPS: uaccess: Added __get/__put_kernel_nofault 2021-04-06 14:36:56 +02:00
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
ioremap.c MIPS: use ioremap_page_range 2020-04-19 16:13:18 +02:00
ioremap64.c MIPS: move ioremap_prot und iounmap out of line 2020-04-19 16:12:31 +02:00
maccess.c 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