diff options
| author | Heiko Carstens <hca@linux.ibm.com> | 2023-04-06 14:31:29 +0300 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2023-04-13 18:36:28 +0300 |
| commit | 81e8479649853ffafc714aca4a9c0262efd3160a (patch) | |
| tree | e915ac65bdca546ed59942519196a967d361a93b /arch/s390/mm | |
| parent | 07fdd6627f7f9c72ed68d531653b56df81da9996 (diff) | |
| download | linux-81e8479649853ffafc714aca4a9c0262efd3160a.tar.xz | |
s390/mm: fix direct map accounting
Commit bb1520d581a3 ("s390/mm: start kernel with DAT enabled") did not
implement direct map accounting in the early page table setup code. In
result the reported values are bogus now:
$cat /proc/meminfo
...
DirectMap4k: 5120 kB
DirectMap1M: 18446744073709546496 kB
DirectMap2G: 0 kB
Fix this by adding the missing accounting. The result looks sane again:
$cat /proc/meminfo
...
DirectMap4k: 6156 kB
DirectMap1M: 2091008 kB
DirectMap2G: 6291456 kB
Fixes: bb1520d581a3 ("s390/mm: start kernel with DAT enabled")
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/mm')
| -rw-r--r-- | arch/s390/mm/pageattr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c index 7838e9c70000..77f31791044d 100644 --- a/arch/s390/mm/pageattr.c +++ b/arch/s390/mm/pageattr.c @@ -41,7 +41,7 @@ void __storage_key_init_range(unsigned long start, unsigned long end) } #ifdef CONFIG_PROC_FS -atomic_long_t direct_pages_count[PG_DIRECT_MAP_MAX]; +atomic_long_t __bootdata_preserved(direct_pages_count[PG_DIRECT_MAP_MAX]); void arch_report_meminfo(struct seq_file *m) { |