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| author | Heiko Carstens <hca@linux.ibm.com> | 2024-11-29 17:39:27 +0100 |
|---|---|---|
| committer | Alexander Gordeev <agordeev@linux.ibm.com> | 2024-12-10 15:40:41 +0100 |
| commit | 41856638e6c4ed51d8aa9e54f70059d1e357b46e (patch) | |
| tree | afba0d87620f564278f63ac0823a347537c4bb92 /tools/testing/selftests/bpf/prog_tests/autoload.c | |
| parent | Linux 6.13-rc2 (diff) | |
| download | linux-41856638e6c4ed51d8aa9e54f70059d1e357b46e.tar.gz linux-41856638e6c4ed51d8aa9e54f70059d1e357b46e.zip | |
s390/mm: Fix DirectMap accounting
With uncoupling of physical and virtual address spaces population of
the identity mapping was changed to use the type POPULATE_IDENTITY
instead of POPULATE_DIRECT. This breaks DirectMap accounting:
> cat /proc/meminfo
DirectMap4k: 55296 kB
DirectMap1M: 18446744073709496320 kB
Adjust all locations of update_page_count() in vmem.c to use
POPULATE_IDENTITY instead of POPULATE_DIRECT as well. With this
accounting is correct again:
> cat /proc/meminfo
DirectMap4k: 54264 kB
DirectMap1M: 8334336 kB
Fixes: c98d2ecae08f ("s390/mm: Uncouple physical vs virtual address spaces")
Cc: stable@vger.kernel.org
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/autoload.c')
0 files changed, 0 insertions, 0 deletions