On 05/30/2013 12:26 PM, Peter Zijlstra wrote:
> On Thu, May 30, 2013 at 10:34:53AM +0530, Vineet Gupta wrote:
>> On 05/29/2013 11:21 PM, Peter Zijlstra wrote:
>>
>> BTW, since we are on the topic, it seems that we are missing tlb_fast_mode() in
>> one spot - unless it is tied to rcu table free stuff.
>>
>> -------------->
>> From: Vineet Gupta <vgupta@xxxxxxxxxxxx>
>> Date: Thu, 30 May 2013 10:25:30 +0530
>> Subject: [PATCH] mm: tlb_fast_mode check missing in tlb_finish_mmu()
>>
>> Signed-off-by: Vineet Gupta <vgupta@xxxxxxxxxxxx>
>> ---
>> mm/memory.c | 3 +++
>> 1 file changed, 3 insertions(+)
>>
>> diff --git a/mm/memory.c b/mm/memory.c
>> index d9d5fd9..569ffe1 100644
>> --- a/mm/memory.c
>> +++ b/mm/memory.c
>> @@ -269,6 +269,9 @@ void tlb_finish_mmu(struct mmu_gather *tlb, unsigned long
>> start, unsigned long e
>> /* keep the page table cache within bounds */
>> check_pgt_cache();
>>
>> + if (tlb_fast_mode(tlb))
>> + return;
>> +
>> for (batch = tlb->local.next; batch; batch = next) {
>> next = batch->next;
>> free_pages((unsigned long)batch, 0);
> Yes I think that is possible. It would shrink the code a little when
> fast_mode was unconditionally 1 -- ie. simple UP ;-).
Exactly ! Can you please revert with a Reviewed-by/Acked-by so I can formally send
it over to linux-mm list.
Thx,
-Vineet
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>