Re: [PATCH v3 2/9] riscv: mm: Pre-allocate vmemmap/direct map PGD entries

Björn Töpel writes: > From: Björn Töpel > > The RISC-V port copies the PGD table from init_mm/swapper_pg_dir to > all userland page tables, which means that if the PGD level table is > changed, other page tables has to be updated as well. > > Instead of having the PGD changes ripple out to all t

[PATCH v3 2/9] riscv: mm: Pre-allocate vmemmap/direct map PGD entries

From: Björn Töpel The RISC-V port copies the PGD table from init_mm/swapper_pg_dir to all userland page tables, which means that if the PGD level table is changed, other page tables has to be updated as well. Instead of having the PGD changes ripple out to all tables, the synchronization can be