On Wed, May 15, 2019 at 08:05:16AM +0530, Anshuman Khandual wrote: > Virtual address alignment is essential in ensuring correct clearing for all > intermediate level pgtable entries and freeing associated pgtable pages. An > unaligned address can end up randomly freeing pgtable page that potentially > still contains valid mappings. Hence also check it's alignment along with > existing phys_addr check. > > Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx> > Cc: Toshi Kani <toshi.kani@xxxxxxx> > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > Cc: Will Deacon <will.deacon@xxxxxxx> > Cc: Chintan Pandya <cpandya@xxxxxxxxxxxxxx> > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > Cc: Catalin Marinas <catalin.marinas@xxxxxxx> Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx> I guess Andrew can pick this up, otherwise I can queue it through arm64 (there are no arm64 dependencies on this). Thanks. -- Catalin
