Lines Matching refs:region
425 struct vm_region *region, *last; in validate_nommu_regions() local
437 region = rb_entry(p, struct vm_region, vm_rb); in validate_nommu_regions()
440 BUG_ON(region->vm_end <= region->vm_start); in validate_nommu_regions()
441 BUG_ON(region->vm_top < region->vm_end); in validate_nommu_regions()
442 BUG_ON(region->vm_start < last->vm_top); in validate_nommu_regions()
456 static void add_nommu_region(struct vm_region *region) in add_nommu_region() argument
468 if (region->vm_start < pregion->vm_start) in add_nommu_region()
470 else if (region->vm_start > pregion->vm_start) in add_nommu_region()
472 else if (pregion == region) in add_nommu_region()
478 rb_link_node(®ion->vm_rb, parent, p); in add_nommu_region()
479 rb_insert_color(®ion->vm_rb, &nommu_region_tree); in add_nommu_region()
487 static void delete_nommu_region(struct vm_region *region) in delete_nommu_region() argument
492 rb_erase(®ion->vm_rb, &nommu_region_tree); in delete_nommu_region()
515 static void __put_nommu_region(struct vm_region *region) in __put_nommu_region() argument
520 if (--region->vm_usage == 0) { in __put_nommu_region()
521 if (region->vm_top > region->vm_start) in __put_nommu_region()
522 delete_nommu_region(region); in __put_nommu_region()
525 if (region->vm_file) in __put_nommu_region()
526 fput(region->vm_file); in __put_nommu_region()
530 if (region->vm_flags & VM_MAPPED_COPY) in __put_nommu_region()
531 free_page_series(region->vm_start, region->vm_top); in __put_nommu_region()
532 kmem_cache_free(vm_region_jar, region); in __put_nommu_region()
541 static void put_nommu_region(struct vm_region *region) in put_nommu_region() argument
544 __put_nommu_region(region); in put_nommu_region()
903 struct vm_region *region, in do_mmap_private() argument
954 region->vm_flags = vma->vm_flags; in do_mmap_private()
955 region->vm_start = (unsigned long) base; in do_mmap_private()
956 region->vm_end = region->vm_start + len; in do_mmap_private()
957 region->vm_top = region->vm_start + (total << PAGE_SHIFT); in do_mmap_private()
959 vma->vm_start = region->vm_start; in do_mmap_private()
960 vma->vm_end = region->vm_start + len; in do_mmap_private()
984 free_page_series(region->vm_start, region->vm_top); in do_mmap_private()
985 region->vm_start = vma->vm_start = 0; in do_mmap_private()
986 region->vm_end = vma->vm_end = 0; in do_mmap_private()
987 region->vm_top = 0; in do_mmap_private()
1010 struct vm_region *region; in do_mmap() local
1036 region = kmem_cache_zalloc(vm_region_jar, GFP_KERNEL); in do_mmap()
1037 if (!region) in do_mmap()
1047 region->vm_usage = 1; in do_mmap()
1048 region->vm_flags = vm_flags; in do_mmap()
1049 region->vm_pgoff = pgoff; in do_mmap()
1055 region->vm_file = get_file(file); in do_mmap()
1127 fput(region->vm_file); in do_mmap()
1128 kmem_cache_free(vm_region_jar, region); in do_mmap()
1129 region = pregion; in do_mmap()
1155 vma->vm_start = region->vm_start = addr; in do_mmap()
1156 vma->vm_end = region->vm_end = addr + len; in do_mmap()
1161 vma->vm_region = region; in do_mmap()
1169 ret = do_mmap_private(vma, region, len, capabilities); in do_mmap()
1172 add_nommu_region(region); in do_mmap()
1178 memset((void *)region->vm_start, 0, in do_mmap()
1179 region->vm_end - region->vm_start); in do_mmap()
1195 if (vma->vm_flags & VM_EXEC && !region->vm_icache_flushed) { in do_mmap()
1196 flush_icache_user_range(region->vm_start, region->vm_end); in do_mmap()
1197 region->vm_icache_flushed = true; in do_mmap()
1208 if (region->vm_file) in do_mmap()
1209 fput(region->vm_file); in do_mmap()
1210 kmem_cache_free(vm_region_jar, region); in do_mmap()
1223 kmem_cache_free(vm_region_jar, region); in do_mmap()
1236 kmem_cache_free(vm_region_jar, region); in do_mmap()
1305 struct vm_region *region; in split_vma() local
1318 region = kmem_cache_alloc(vm_region_jar, GFP_KERNEL); in split_vma()
1319 if (!region) in split_vma()
1333 *region = *vma->vm_region; in split_vma()
1334 new->vm_region = region; in split_vma()
1339 region->vm_top = region->vm_end = new->vm_end = addr; in split_vma()
1341 region->vm_start = new->vm_start = addr; in split_vma()
1342 region->vm_pgoff = new->vm_pgoff += npages; in split_vma()
1370 kmem_cache_free(vm_region_jar, region); in split_vma()
1382 struct vm_region *region; in vmi_shrink_vma() local
1401 region = vma->vm_region; in vmi_shrink_vma()
1402 BUG_ON(region->vm_usage != 1); in vmi_shrink_vma()
1405 delete_nommu_region(region); in vmi_shrink_vma()
1406 if (from > region->vm_start) { in vmi_shrink_vma()
1407 to = region->vm_top; in vmi_shrink_vma()
1408 region->vm_top = region->vm_end = from; in vmi_shrink_vma()
1410 region->vm_start = to; in vmi_shrink_vma()
1412 add_nommu_region(region); in vmi_shrink_vma()
1738 struct vm_region *region; in nommu_shrink_inode_mappings() local
1769 region = vma->vm_region; in nommu_shrink_inode_mappings()
1770 r_size = region->vm_top - region->vm_start; in nommu_shrink_inode_mappings()
1771 r_top = (region->vm_pgoff << PAGE_SHIFT) + r_size; in nommu_shrink_inode_mappings()
1774 region->vm_top -= r_top - newsize; in nommu_shrink_inode_mappings()
1775 if (region->vm_end > region->vm_top) in nommu_shrink_inode_mappings()
1776 region->vm_end = region->vm_top; in nommu_shrink_inode_mappings()