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authorMike Rapoport <rppt@linux.ibm.com>2020-01-08 15:58:52 +0300
committerHelge Deller <deller@gmx.de>2020-01-14 11:18:39 +0300
commit8b7f938e0a03776124781f19fb22443dfb519cff (patch)
tree1d03f28cbf92a5a0b484f816b12a5c0c9aeced5f /arch/parisc/mm
parent4f80b70e1953cb846dbdd1ce72cb17333d4c8d11 (diff)
downloadlinux-8b7f938e0a03776124781f19fb22443dfb519cff.tar.xz
parisc: fix map_pages() to actually populate upper directory
The commit d96885e277b5 ("parisc: use pgtable-nopXd instead of 4level-fixup") converted PA-RISC to use folded page tables, but it missed the conversion of pgd_populate() to pud_populate() in maps_pages() function. This caused the upper page table directory to remain empty and the system would crash as a result. Using pud_populate() that actually populates the page table instead of dummy pgd_populate() fixes the issue. Fixes: d96885e277b5 ("parisc: use pgtable-nopXd instead of 4level-fixup") Reported-by: Meelis Roos <mroos@linux.ee> Reported-by: Jeroen Roovers <jer@gentoo.org> Reported-by: Mikulas Patocka <mpatocka@redhat.com> Tested-by: Jeroen Roovers <jer@gentoo.org> Tested-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc/mm')
-rw-r--r--arch/parisc/mm/init.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index ddca8287d43b..354cf060b67f 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -401,7 +401,7 @@ static void __init map_pages(unsigned long start_vaddr,
pmd = (pmd_t *) __pa(pmd);
}
- pgd_populate(NULL, pg_dir, __va(pmd));
+ pud_populate(NULL, (pud_t *)pg_dir, __va(pmd));
#endif
pg_dir++;