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| author | Vasily Gorbik <[email protected]> | 2021-10-14 11:33:45 +0000 |
|---|---|---|
| committer | Heiko Carstens <[email protected]> | 2021-11-16 11:29:18 +0000 |
| commit | 420f48f636b98fd685f44a3acc4c0a7c0840910d (patch) | |
| tree | 5b13b982feda84cc8ff77445576f380c97c95f76 /net/unix/af_unix.c | |
| parent | Linux 5.16-rc1 (diff) | |
| download | kernel-420f48f636b98fd685f44a3acc4c0a7c0840910d.tar.gz kernel-420f48f636b98fd685f44a3acc4c0a7c0840910d.zip | |
s390/setup: avoid reserving memory above identity mapping
Such reserved memory region, if not cleaned up later causes problems when
memblock_free_all() is called to release free pages to the buddy allocator
and those reserved regions are carried over to reserve_bootmem_region()
which marks the pages as PageReserved.
Instead use memblock_set_current_limit() to make sure memblock allocations
do not go over identity mapping (which could happen when "mem=" option
is used or during kdump).
Cc: [email protected]
Fixes: 73045a08cf55 ("s390: unify identity mapping limits handling")
Reported-by: Gerald Schaefer <[email protected]>
Reviewed-by: Heiko Carstens <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions