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108303b0a2
linux/arch/s390/mm
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Vasily Gorbik 108303b0a2 s390/vmem: fix empty page tables cleanup under KASAN 
Commit b9ff81003c ("s390/vmem: cleanup empty page tables") introduced
empty page tables cleanup in vmem code, but when the kernel is built
with KASAN enabled the code has no effect due to wrong KASAN shadow
memory intersection condition, which effectively ignores any memory
range below KASAN shadow. Fix intersection condition to make code
work as anticipated.

Fixes: b9ff81003c ("s390/vmem: cleanup empty page tables")
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-02-06 11:13:53 +01:00
..
cmm.c s390/cmm: add missing virt_to_phys() conversion 2021-12-10 16:14:25 +01:00
dump_pagetables.c s390/mm,ptdump: avoid Kasan vs Memcpy Real markers swapping 2023-01-31 18:56:36 +01:00
extable.c s390/uaccess: use exception handler to zero result on get_user() failure 2022-06-01 12:03:17 +02:00
extmem.c s390/extmem: remove stale -ENOSPC comment and handling 2020-07-03 10:49:16 +02:00
fault.c Merge branch 'fixes' into features 2022-09-14 16:41:21 +02:00
gmap.c ARM64: 2022-12-15 11:12:21 -08:00
hugetlbpage.c s390/hugetlb: switch to generic version of follow_huge_pud() 2022-09-11 20:26:01 -07:00
init.c s390/mm: start kernel with DAT enabled 2023-01-13 14:15:05 +01:00
kasan_init.c s390/kasan: update kasan memory layout note 2023-02-06 11:13:53 +01:00
maccess.c s390/mm: allocate Absolute Lowcore Area in decompressor 2023-01-13 14:15:06 +01:00
Makefile s390/extable: move extable related functions to mm/extable.c 2022-03-08 00:33:00 +01:00
mmap.c treewide: use get_random_u32() when possible 2022-10-11 17:42:58 -06:00
page-states.c s390/mm: remove unused get_page_state() function 2022-11-23 16:24:07 +01:00
pageattr.c s390/mm,pageattr: don't use pte_val()/pXd_val() as lvalue 2022-03-01 21:05:10 +01:00
pgalloc.c s390/mm: use CRST_ALLOC_ORDER instead of number 2022-02-09 22:56:04 +01:00
pgtable.c s390/mm: use non-quiescing sske for KVM switch to keyed guest 2022-06-01 12:03:16 +02:00
vmem.c s390/vmem: fix empty page tables cleanup under KASAN 2023-02-06 11:13:53 +01:00