powerpc/mm: Replace open coded CONTEXT_BITS value

To clarify the meaning for future readers, replace the open coded
19 with CONTEXT_BITS

Reviewed-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Aneesh Kumar K.V 2012-09-10 02:52:47 +00:00 committed by Benjamin Herrenschmidt
parent f3d3444572
commit f038392363

View file

@ -34,7 +34,7 @@ static DEFINE_IDA(mmu_context_ida);
* Each segment contains 2^28 bytes. Each context maps 2^44 bytes,
* so we can support 2^19-1 contexts (19 == 35 + 28 - 44).
*/
#define MAX_CONTEXT ((1UL << 19) - 1)
#define MAX_CONTEXT ((1UL << CONTEXT_BITS) - 1)
int __init_new_context(void)
{