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ion: allow cached mappings of chunk and system heap buffers

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Now that ion_vm_fault uses vm_insert_pfn instead of vm_insert_page
cached buffers can be supported in any heap.  Remove the checks
in the chunk and system heaps.

Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Colin Cross 2013-12-13 19:26:26 -08:00 committed by Greg Kroah-Hartman
parent a3056906bf
commit a053b6ace1
2 changed files with 0 additions and 6 deletions
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3
drivers/staging/android/ion/ion_chunk_heap.c
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@ -47,9 +47,6 @@ static int ion_chunk_heap_allocate(struct ion_heap *heap,
unsigned long num_chunks;
unsigned long allocated_size;
if (ion_buffer_fault_user_mappings(buffer))
return -ENOMEM;
allocated_size = ALIGN(size, chunk_heap->chunk_size);
num_chunks = allocated_size / chunk_heap->chunk_size;

3
drivers/staging/android/ion/ion_system_heap.c
View File

@ -148,9 +148,6 @@ static int ion_system_heap_allocate(struct ion_heap *heap,
if (align > PAGE_SIZE)
return -EINVAL;
if (ion_buffer_fault_user_mappings(buffer))
return -EINVAL;
INIT_LIST_HEAD(&pages);
while (size_remaining > 0) {
info = alloc_largest_available(sys_heap, buffer, size_remaining, max_order);