diff options
| -rw-r--r-- | Documentation/cachetlb.txt | 2 | ||||
| -rw-r--r-- | arch/powerpc/mm/imalloc.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/mm/pgtable_64.c | 1 | ||||
| -rw-r--r-- | include/linux/vmalloc.h | 3 | ||||
| -rw-r--r-- | mm/vmalloc.c | 13 |
5 files changed, 14 insertions, 8 deletions
diff --git a/Documentation/cachetlb.txt b/Documentation/cachetlb.txt index debf6813934a..866b76139420 100644 --- a/Documentation/cachetlb.txt +++ b/Documentation/cachetlb.txt @@ -253,7 +253,7 @@ Here are the routines, one by one: The first of these two routines is invoked after map_vm_area() has installed the page table entries. The second is invoked - before unmap_vm_area() deletes the page table entries. + before unmap_kernel_range() deletes the page table entries. There exists another whole class of cpu cache issues which currently require a whole different set of interfaces to handle properly. diff --git a/arch/powerpc/mm/imalloc.c b/arch/powerpc/mm/imalloc.c index c831815c31f0..9eddf37303d7 100644 --- a/arch/powerpc/mm/imalloc.c +++ b/arch/powerpc/mm/imalloc.c @@ -301,7 +301,8 @@ void im_free(void * addr) for (p = &imlist ; (tmp = *p) ; p = &tmp->next) { if (tmp->addr == addr) { *p = tmp->next; - unmap_vm_area(tmp); + unmap_kernel_range((unsigned long)tmp->addr, + tmp->size); kfree(tmp); mutex_unlock(&imlist_mutex); return; diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c index ad6e135bf212..fa5c828d3876 100644 --- a/arch/powerpc/mm/pgtable_64.c +++ b/arch/powerpc/mm/pgtable_64.c @@ -240,7 +240,6 @@ int __ioremap_explicit(phys_addr_t pa, unsigned long ea, /* * Unmap an IO region and remove it from imalloc'd list. * Access to IO memory should be serialized by driver. - * This code is modeled after vmalloc code - unmap_vm_area() * * XXX what about calls before mem_init_done (ie python_countermeasures()) */ diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index 4b7ee83787c1..132b260aef1e 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -65,9 +65,10 @@ extern struct vm_struct *get_vm_area_node(unsigned long size, unsigned long flags, int node, gfp_t gfp_mask); extern struct vm_struct *remove_vm_area(void *addr); + extern int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages); -extern void unmap_vm_area(struct vm_struct *area); +extern void unmap_kernel_range(unsigned long addr, unsigned long size); /* * Internals. Dont't use.. diff --git a/mm/vmalloc.c b/mm/vmalloc.c index d3a9c5368257..ddf87145cc49 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -68,12 +68,12 @@ static inline void vunmap_pud_range(pgd_t *pgd, unsigned long addr, } while (pud++, addr = next, addr != end); } -void unmap_vm_area(struct vm_struct *area) +void unmap_kernel_range(unsigned long addr, unsigned long size) { pgd_t *pgd; unsigned long next; - unsigned long addr = (unsigned long) area->addr; - unsigned long end = addr + area->size; + unsigned long start = addr; + unsigned long end = addr + size; BUG_ON(addr >= end); pgd = pgd_offset_k(addr); @@ -84,7 +84,12 @@ void unmap_vm_area(struct vm_struct *area) continue; vunmap_pud_range(pgd, addr, next); } while (pgd++, addr = next, addr != end); - flush_tlb_kernel_range((unsigned long) area->addr, end); + flush_tlb_kernel_range(start, end); +} + +static void unmap_vm_area(struct vm_struct *area) +{ + unmap_kernel_range((unsigned long)area->addr, area->size); } static int vmap_pte_range(pmd_t *pmd, unsigned long addr, |