Chunyan Zhang <zhangchunyan@xxxxxxxxxxx> writes: > The PTE bit(9) on RISC-V is reserved for software, it is used by devmap > now which has to be disabled if we want to use bit(9) for other features, > since there's no more free PTE bit on RISC-V now. > > So to make ARCH_HAS_PTE_DEVMAP selectable, this patch uses it as > the build condition of devmap definitions. Heads-up: It seems like Alistair's series [1] that removes the devmap PTE bit will most likely land in 6.15. Björn [1] https://lore.kernel.org/linux-mm/cover.11189864684e31260d1408779fac9db80122047b.1736488799.git-series.apopple@xxxxxxxxxx/
