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| author | Alexander Gordeev <agordeev@linux.ibm.com> | 2023-07-04 08:46:26 +0300 |
|---|---|---|
| committer | Alexander Gordeev <agordeev@linux.ibm.com> | 2023-07-04 08:46:26 +0300 |
| commit | 54372cf043276735e29045abf998895b2ac277cf (patch) | |
| tree | eed37120a84e3b2f45b89a2a51b264716ff35d16 /arch/s390/mm | |
| parent | 6aca56c024e42577c28706a85979a6967b9b5e97 (diff) | |
| download | linux-54372cf043276735e29045abf998895b2ac277cf.tar.xz | |
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/mm')
| -rw-r--r-- | arch/s390/mm/extmem.c | 2 | ||||
| -rw-r--r-- | arch/s390/mm/vmem.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c index f4d371901bf4..1bc42ce26599 100644 --- a/arch/s390/mm/extmem.c +++ b/arch/s390/mm/extmem.c @@ -642,7 +642,7 @@ void segment_warning(int rc, char *seg_name) break; case -ERANGE: pr_err("DCSS %s exceeds the kernel mapping range (%lu) " - "and cannot be loaded\n", seg_name, ident_map_size); + "and cannot be loaded\n", seg_name, VMEM_MAX_PHYS); break; default: break; diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c index 9db048ccfcc8..b26649233d12 100644 --- a/arch/s390/mm/vmem.c +++ b/arch/s390/mm/vmem.c @@ -531,7 +531,7 @@ struct range arch_get_mappable_range(void) struct range mhp_range; mhp_range.start = 0; - mhp_range.end = ident_map_size - 1; + mhp_range.end = VMEM_MAX_PHYS - 1; return mhp_range; } |