Cross Reference: /drivers/staging/android/ashmem.c

Lines Matching refs:asma
65  * @asma:	         The associated anonymous shared memory area.
76 	struct ashmem_area *asma;
154  * @asma:	   The associated ashmem_area
155  * @prev_range:	   The previous ashmem_range in the sorted asma->unpinned list
164 static int range_alloc(struct ashmem_area *asma,
174 	range->asma = asma;
235 	struct ashmem_area *asma;
242 	asma = kmem_cache_zalloc(ashmem_area_cachep, GFP_KERNEL);
243 	if (unlikely(!asma))
246 	INIT_LIST_HEAD(&asma->unpinned_list);
247 	memcpy(asma->name, ASHMEM_NAME_PREFIX, ASHMEM_NAME_PREFIX_LEN);
248 	asma->prot_mask = PROT_MASK;
249 	file->private_data = asma;
264 	struct ashmem_area *asma = file->private_data;
268 	list_for_each_entry_safe(range, next, &asma->unpinned_list, unpinned)
272 	if (asma->file)
273 		fput(asma->file);
274 	kmem_cache_free(ashmem_area_cachep, asma);
291 	struct ashmem_area *asma = file->private_data;
297 	if (asma->size == 0)
300 	if (!asma->file) {
308 	 * asma and asma->file are used outside the lock here.  We assume
309 	 * once asma->file is set it will never be changed, and will not
313 	ret = asma->file->f_op->read(asma->file, buf, len, pos);
316 		asma->file->f_pos = *pos;
327 	struct ashmem_area *asma = file->private_data;
332 	if (asma->size == 0) {
337 	if (!asma->file) {
342 	ret = vfs_llseek(asma->file, offset, origin);
347 	file->f_pos = asma->file->f_pos;
363 	struct ashmem_area *asma = file->private_data;
369 	if (unlikely(!asma->size)) {
375 	if (unlikely((vma->vm_flags & ~calc_vm_prot_bits(asma->prot_mask)) &
380 	vma->vm_flags &= ~calc_vm_may_flags(~asma->prot_mask);
382 	if (!asma->file) {
386 		if (asma->name[ASHMEM_NAME_PREFIX_LEN] != '\0')
387 			name = asma->name;
390 		vmfile = shmem_file_setup(name, asma->size, vma->vm_flags);
395 		asma->file = vmfile;
397 	get_file(asma->file);
400 		shmem_set_file(vma, asma->file);
404 		vma->vm_file = asma->file;
443 		range->asma->file->f_op->fallocate(range->asma->file,
478 static int set_prot_mask(struct ashmem_area *asma, unsigned long prot)
485 	if (unlikely((asma->prot_mask & prot) != prot)) {
494 	asma->prot_mask = prot;
501 static int set_name(struct ashmem_area *asma, void __user *name)
523 	if (unlikely(asma->file))
526 		strcpy(asma->name + ASHMEM_NAME_PREFIX_LEN, local_name);
532 static int get_name(struct ashmem_area *asma, void __user *name)
538 	 * from asma with the lock held. Later we can copy this to the user
545 	if (asma->name[ASHMEM_NAME_PREFIX_LEN] != '\0') {
551 		len = strlen(asma->name + ASHMEM_NAME_PREFIX_LEN) + 1;
552 		memcpy(local_name, asma->name + ASHMEM_NAME_PREFIX_LEN, len);
574 static int ashmem_pin(struct ashmem_area *asma, size_t pgstart, size_t pgend)
579 	list_for_each_entry_safe(range, next, &asma->unpinned_list, unpinned) {
625 			range_alloc(asma, range, range->purged,
640 static int ashmem_unpin(struct ashmem_area *asma, size_t pgstart, size_t pgend)
646 	list_for_each_entry_safe(range, next, &asma->unpinned_list, unpinned) {
666 	return range_alloc(asma, range, purged, pgstart, pgend);
675 static int ashmem_get_pin_status(struct ashmem_area *asma, size_t pgstart,
681 	list_for_each_entry(range, &asma->unpinned_list, unpinned) {
693 static int ashmem_pin_unpin(struct ashmem_area *asma, unsigned long cmd,
700 	if (unlikely(!asma->file))
708 		pin.len = PAGE_ALIGN(asma->size) - pin.offset;
716 	if (unlikely(PAGE_ALIGN(asma->size) < pin.offset + pin.len))
726 		ret = ashmem_pin(asma, pgstart, pgend);
729 		ret = ashmem_unpin(asma, pgstart, pgend);
732 		ret = ashmem_get_pin_status(asma, pgstart, pgend);
743 	struct ashmem_area *asma = file->private_data;
748 		ret = set_name(asma, (void __user *) arg);
751 		ret = get_name(asma, (void __user *) arg);
755 		if (!asma->file) {
757 			asma->size = (size_t) arg;
761 		ret = asma->size;
764 		ret = set_prot_mask(asma, arg);
767 		ret = asma->prot_mask;
772 		ret = ashmem_pin_unpin(asma, cmd, (void __user *) arg);