[PATCH 2/6] asm-generic/tlb: Track which levels of the page tables have been cleared

From: Will Deacon It is common for architectures with hugepage support to require only a single TLB invalidation operation per hugepage during unmap(), rather than iterating through the mapping at a PAGE_SIZE increment. Currently, however, the level in the page table where the unmap() operation o

[PATCH 2/6] asm-generic/tlb: Track which levels of the page tables have been cleared

From: Will Deacon It is common for architectures with hugepage support to require only a single TLB invalidation operation per hugepage during unmap(), rather than iterating through the mapping at a PAGE_SIZE increment. Currently, however, the level in the page table where the unmap() operation o