diff options
Diffstat (limited to 'include/asm-ppc64/pgtable.h')
| -rw-r--r-- | include/asm-ppc64/pgtable.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/include/asm-ppc64/pgtable.h b/include/asm-ppc64/pgtable.h index 4c4824653e8..33b90e2aa47 100644 --- a/include/asm-ppc64/pgtable.h +++ b/include/asm-ppc64/pgtable.h @@ -500,9 +500,15 @@ extern pgd_t ioremap_dir[1024]; extern void paging_init(void); -struct mmu_gather; -void hugetlb_free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *prev, - unsigned long start, unsigned long end); +/* + * Because the huge pgtables are only 2 level, they can take + * at most around 4M, much less than one hugepage which the + * process is presumably entitled to use. So we don't bother + * freeing up the pagetables on unmap, and wait until + * destroy_context() to clean up the lot. + */ +#define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) \ + do { } while (0) /* * This gets called at the end of handling a page fault, when |