Max Filippov e28bace5e7 xtensa: define update_mmu_tlb function ... commit 1c4664faa3 upstream. Before the commit f9ce0be71d ("mm: Cleanup faultaround and finish_fault() codepaths") there was a call to update_mmu_cache in alloc_set_pte that used to invalidate TLB entry caching invalid PTE that caused a page fault. That commit removed that call so now invalid TLB entry survives causing repetitive page faults on the CPU that took the initial fault until that TLB entry is occasionally evicted. This issue is spotted by the xtensa TLB sanity checker. Fix this issue by defining update_mmu_tlb function that flushes TLB entry for the faulting address. Cc: stable@vger.kernel.org # 5.12+ Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-04-08 14:23:03 +02:00
..
cache.c	xtensa: simplify coherent_kvaddr logic	2021-04-04 15:39:03 -07:00
fault.c	xtensa: fix uaccess-related livelock in do_page_fault	2021-03-29 11:25:11 -07:00
highmem.c	xtensa/mm/highmem: Make generic kmap_atomic() work correctly	2020-11-16 21:19:24 +01:00
init.c	mm: move mem_init_print_info() into mm_init()	2021-04-30 11:20:42 -07:00
ioremap.c	mm: reorder includes after introduction of linux/pgtable.h	2020-06-09 09:39:13 -07:00
kasan_init.c	mm: pgtable: add shortcuts for accessing kernel PMD and PTE	2020-06-09 09:39:13 -07:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
misc.S	xtensa: simplify coherent_kvaddr logic	2021-04-04 15:39:03 -07:00
mmu.c	xtensa: use CONFIG_USE_OF instead of CONFIG_OF	2021-09-27 06:08:58 -07:00
tlb.c	xtensa: define update_mmu_tlb function	2022-04-08 14:23:03 +02:00