This is a note to let you know that I've just added the patch titled
powerpc/8xx: fix size given to set_huge_pte_at()
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
powerpc-8xx-fix-size-given-to-set_huge_pte_at.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit eac7c94d0f914a6cb683f26733ce0206733d6c3e
Author: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Date: Tue Jul 2 15:51:24 2024 +0200
powerpc/8xx: fix size given to set_huge_pte_at()
[ Upstream commit 7ea981070fd9ec24bc0111636038193aebb0289c ]
set_huge_pte_at() expects the size of the hugepage as an int, not the
psize which is the index of the page definition in table mmu_psize_defs[]
Link: https://lkml.kernel.org/r/97f2090011e25d99b6b0aae73e22e1b921c5d1fb.1719928057.git.christophe.leroy@xxxxxxxxxx
Fixes: 935d4f0c6dc8 ("mm: hugetlb: add huge page size param to set_huge_pte_at()")
Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Reviewed-by: Oscar Salvador <osalvador@xxxxxxx>
Cc: Jason Gunthorpe <jgg@xxxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Nicholas Piggin <npiggin@xxxxxxxxx>
Cc: Peter Xu <peterx@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/powerpc/mm/nohash/8xx.c b/arch/powerpc/mm/nohash/8xx.c
index a642a79298929..3245016302787 100644
--- a/arch/powerpc/mm/nohash/8xx.c
+++ b/arch/powerpc/mm/nohash/8xx.c
@@ -92,7 +92,8 @@ static int __ref __early_map_kernel_hugepage(unsigned long va, phys_addr_t pa,
return -EINVAL;
set_huge_pte_at(&init_mm, va, ptep,
- pte_mkhuge(pfn_pte(pa >> PAGE_SHIFT, prot)), psize);
+ pte_mkhuge(pfn_pte(pa >> PAGE_SHIFT, prot)),
+ 1UL << mmu_psize_to_shift(psize));
return 0;
}
