pasta from the corresponding s390 code screwed up the address calculation
for marking the sub-pmd ranges via memset by omitting the ALIGN_DOWN() to
calculate the proper start address. It's a mystery why this code is not
generic and shared because there is nothing architecture specific in there,
but that's too intrusive for a backportable fix.
-----BEGIN PGP SIGNATURE-----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=f+jf
-----END PGP SIGNATURE-----
Merge tag 'x86-urgent-2022-05-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Thomas Gleixner:
"A single fix for the handling of unpopulated sub-pmd spaces.
The copy & pasta from the corresponding s390 code screwed up the
address calculation for marking the sub-pmd ranges via memset by
omitting the ALIGN_DOWN() to calculate the proper start address.
It's a mystery why this code is not generic and shared because there
is nothing architecture specific in there, but that's too intrusive
for a backportable fix"
* tag 'x86-urgent-2022-05-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Fix marking of unused sub-pmd ranges
79dc4fc2f2