RE: [PATCH 03/12] netfilter: x_tables: align per cpu xt_counter
From: Pablo Neira Ayuso Sent: 19 June 2015 18:18 From: Eric Dumazet eduma...@google.com Let's force a 16 bytes alignment on xt_counter percpu allocations, so that bytes and packets sit in same cache line. xt_counter being exported to user space, we cannot add __align(16) on the structure itself. You could allocate a wrapper structure that contains xt_counter and is itself marked __align(16). David -- To unsubscribe from this list: send the line unsubscribe netdev in
Re: [PATCH 03/12] netfilter: x_tables: align per cpu xt_counter
On Mon, 2015-06-22 at 11:49 +, David Laight wrote: From: Pablo Neira Ayuso Sent: 19 June 2015 18:18 From: Eric Dumazet eduma...@google.com Let's force a 16 bytes alignment on xt_counter percpu allocations, so that bytes and packets sit in same cache line. xt_counter being exported to user space, we cannot add __align(16) on the structure itself. You could allocate a wrapper structure that contains xt_counter and is itself marked __align(16). Sure. I took one solution, out of multiple ones. -- To unsubscribe from this list: send the line unsubscribe netdev in
