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s390/mm,ptdump: avoid Kasan vs Memcpy Real markers swapping

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---[ Real Memory Copy Area Start ]---
0x001bfffffffff000-0x001c000000000000         4K PTE I
---[ Kasan Shadow Start ]---
---[ Real Memory Copy Area End ]---
0x001c000000000000-0x001c000200000000         8G PMD RW NX
...
---[ Kasan Shadow End ]---

ptdump does a stable sort of markers. Move kasan markers after
memcpy real to avoid swapping.

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>
This commit is contained in:
Vasily Gorbik 2023-01-24 18:08:38 +01:00 committed by Heiko Carstens
parent 39da9a979c
commit 05178996e1
1 changed files with 8 additions and 8 deletions
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16
arch/s390/mm/dump_pagetables.c
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@ -33,10 +33,6 @@ enum address_markers_idx {
#endif
IDENTITY_AFTER_NR,
IDENTITY_AFTER_END_NR,
#ifdef CONFIG_KASAN
KASAN_SHADOW_START_NR,
KASAN_SHADOW_END_NR,
#endif
VMEMMAP_NR,
VMEMMAP_END_NR,
VMALLOC_NR,
@ -47,6 +43,10 @@ enum address_markers_idx {
ABS_LOWCORE_END_NR,
MEMCPY_REAL_NR,
MEMCPY_REAL_END_NR,
#ifdef CONFIG_KASAN
KASAN_SHADOW_START_NR,
KASAN_SHADOW_END_NR,
#endif
};
static struct addr_marker address_markers[] = {
@ -62,10 +62,6 @@ static struct addr_marker address_markers[] = {
#endif
[IDENTITY_AFTER_NR] = {(unsigned long)_end, "Identity Mapping Start"},
[IDENTITY_AFTER_END_NR] = {0, "Identity Mapping End"},
#ifdef CONFIG_KASAN
[KASAN_SHADOW_START_NR] = {KASAN_SHADOW_START, "Kasan Shadow Start"},
[KASAN_SHADOW_END_NR] = {KASAN_SHADOW_END, "Kasan Shadow End"},
#endif
[VMEMMAP_NR] = {0, "vmemmap Area Start"},
[VMEMMAP_END_NR] = {0, "vmemmap Area End"},
[VMALLOC_NR] = {0, "vmalloc Area Start"},
@ -76,6 +72,10 @@ static struct addr_marker address_markers[] = {
[ABS_LOWCORE_END_NR] = {0, "Lowcore Area End"},
[MEMCPY_REAL_NR] = {0, "Real Memory Copy Area Start"},
[MEMCPY_REAL_END_NR] = {0, "Real Memory Copy Area End"},
#ifdef CONFIG_KASAN
[KASAN_SHADOW_START_NR] = {KASAN_SHADOW_START, "Kasan Shadow Start"},
[KASAN_SHADOW_END_NR] = {KASAN_SHADOW_END, "Kasan Shadow End"},
#endif
{ -1, NULL }
};