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Revert "powerpc: Set max_mapnr correctly" 

This reverts commit 602946ec2f.

If CONFIG_HIGHMEM is enabled, no highmem will be added with max_mapnr
set to max_low_pfn, see mem_init():

  for (pfn = highmem_mapnr; pfn < max_mapnr; ++pfn) {
        ...
        free_highmem_page();
  }

Now that virt_addr_valid() has been fixed in the previous commit, we can
revert the change to max_mapnr.

Fixes: 602946ec2f ("powerpc: Set max_mapnr correctly")
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reported-by: Erhard F. <erhard_f@mailbox.org>
[mpe: Update change log to reflect series reordering]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220406145802.538416-2-mpe@ellerman.id.au
This commit is contained in:
Kefeng Wang 2022-04-07 00:57:58 +10:00 committed by Michael Ellerman
parent ffa0b64e3b
commit 1ff5c8e8c8
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/mm/mem.c
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@ -255,7 +255,7 @@ void __init mem_init(void)
#endif
high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
set_max_mapnr(max_low_pfn);
set_max_mapnr(max_pfn);
kasan_late_init();