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| author |  Alexander Gordeev <agordeev@linux.ibm.com>
| 2023-07-04 07:46:26 +0200 |
|---|---|---|
| committer | Alexander Gordeev <agordeev@linux.ibm.com>
| 2023-07-04 07:46:26 +0200 |
| commit | 54372cf043276735e29045abf998895b2ac277cf (patch) | |
| tree | eed37120a84e3b2f45b89a2a51b264716ff35d16 /arch/s390/include | |
| parent | s390/cpum_sf: remove check on CPU being online (diff) | |
| download | linux-54372cf043276735e29045abf998895b2ac277cf.tar.gz linux-54372cf043276735e29045abf998895b2ac277cf.tar.bz2 linux-54372cf043276735e29045abf998895b2ac277cf.zip | |
Revert "s390/mm: get rid of VMEM_MAX_PHYS macro"
This reverts commit 456be42aa713e7f83b467db66ceae779431c7d9d.
The assumption VMEM_MAX_PHYS should match ident_map_size
is wrong. At least discontiguous saved segments (DCSS)
could be loaded at addresses beyond ident_map_size and
dcssblk device driver might fail as result.
Reported-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/pgtable.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 30909fe27c24..c55f3c3365af 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -89,6 +89,8 @@ extern unsigned long __bootdata_preserved(VMALLOC_END); extern struct page *__bootdata_preserved(vmemmap); extern unsigned long __bootdata_preserved(vmemmap_size); +#define VMEM_MAX_PHYS ((unsigned long) vmemmap) + extern unsigned long __bootdata_preserved(MODULES_VADDR); extern unsigned long __bootdata_preserved(MODULES_END); #define MODULES_VADDR MODULES_VADDR |