On Thu, Mar 28, 2013 at 02:39:29PM +0900, Simon Horman wrote: > Hi Dave, Hi Pablo, Hi All, > > This is a repost of an IPVS optimisations series by Julian Anastasov > which has been acked by Hans Schillstrom. > > I have tentatively applied them to the ipvs-next tree. > However, the first patch of the series "net: add skb_dst_set_noref_force" > touches core code and thus I believe it needs some review on netdev, > this is the reason for me posting the series. > > Assuming the patch is ok it would be easiest for me if > it went through the ipvs-next tree. But if there is a preference > for taking it through net-next, feel free. > > What follows is Julian's cover-email for the series. > And then git information. I am happy for Pablo to pull this > if Dave is happy with that. It seems that Dave has already acked the change. http://marc.info/?l=linux-netdev&m=136294921002680&w=2 I'll tag ipvs-next and send a proper pull request. > ====================================================================== > > Date: Thu, 21 Mar 2013 11:57:57 +0200 > From: Julian Anastasov <ja@xxxxxx> > To: Simon Horman <horms@xxxxxxxxxxxx> > Cc: lvs-devel@xxxxxxxxxxxxxxx > Subject: [PATCHv3 net-next 00/15] IPVS optimizations > > This is a first patchset for IPVS optimizations. > Another patchset will address the locking in schedulers > and moving the global _bh disabling from LOCAL_OUT to all > locks. > > All patches are for net-next and Simon can > take them for ipvs-next. > > The changes in this patchset eliminate locks > and dst refcnt operations from packet processing by > using RCU. There are more details in the patches. > > v3: > * in "ipvs: consolidate all dst checks on transmit in one place" > preserve original skb dst even for local client, remove the > rt_is_input_route and skb->dev check. Call update_pmtu only for > local client by providing sk instead of skb. > * in "ipvs: optimize dst usage for real server" use > rcu_dereference_protected for __ip_vs_dst_cache_reset instead of > rcu_dereference_raw. Use the new skb_dst_set_noref_force func. > * in "ipvs: remove rs_lock by using RCU" prefer the port check in > ip_vs_has_real_service > * "ipvs: convert locks used in persistence engines" needs only > synchronize_rcu, not rcu_barrier, we do not use rcu callbacks > > v2: > * use "net: add skb_dst_set_unref" instead of > "net: add dst_get_noref and refdst_ptr helpers" > * add "ipvs: no need to reroute anymore on DNAT over loopback" > * add "ipvs: do not use skb_share_check" > * add "ipvs: consolidate all dst checks on transmit in one place", so > that we can avoid the refdst games in next patch > * after "ipvs: consolidate all dst checks on transmit in one place" > "ipvs: optimize dst usage for real server" is simpler and > uses the new skb_dst_set_unref function > * extend "ipvs: reorder keys in connection structure" with > changes in ip_vs_ct_in_get > * fix "ipvs: avoid kmem_cache_zalloc in ip_vs_conn_new" to use new > function ip_vs_addr_set, so that we reset all address fields > that are used for hashing by hash_conntrack_raw > > ====================================================================== > > The following changes since commit dece40e848f6e022f960dc9de54be518928460c3: > > netfilter: nf_conntrack: speed up module removal path if netns in use (2013-03-19 17:08:31 +0100) > > are available in the git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs-next.git master > > for you to fetch changes up to e8a0eb703e38870118928384ffd5eeeb47e7e1ef: > > ipvs: avoid kmem_cache_zalloc in ip_vs_conn_new (2013-03-28 14:16:38 +0900) > > ---------------------------------------------------------------- > Julian Anastasov (15): > net: add skb_dst_set_noref_force > ipvs: avoid routing by TOS for real server > ipvs: prefer NETDEV_DOWN event to free cached dsts > ipvs: convert the IP_VS_XMIT macros to functions > ipvs: rename functions related to dst_cache reset > ipvs: no need to reroute anymore on DNAT over loopback > ipvs: do not use skb_share_check > ipvs: consolidate all dst checks on transmit in one place > ipvs: optimize dst usage for real server > ipvs: convert app locks > ipvs: remove rs_lock by using RCU > ipvs: convert locks used in persistence engines > ipvs: convert connection locking > ipvs: reorder keys in connection structure > ipvs: avoid kmem_cache_zalloc in ip_vs_conn_new > > include/linux/skbuff.h | 35 +- > include/net/ip_vs.h | 71 ++- > net/core/dst.c | 9 +- > net/netfilter/ipvs/ip_vs_app.c | 27 +- > net/netfilter/ipvs/ip_vs_conn.c | 271 +++++---- > net/netfilter/ipvs/ip_vs_core.c | 16 +- > net/netfilter/ipvs/ip_vs_ctl.c | 143 +++-- > net/netfilter/ipvs/ip_vs_ftp.c | 2 + > net/netfilter/ipvs/ip_vs_pe.c | 43 +- > net/netfilter/ipvs/ip_vs_pe_sip.c | 1 + > net/netfilter/ipvs/ip_vs_proto_sctp.c | 18 +- > net/netfilter/ipvs/ip_vs_proto_tcp.c | 18 +- > net/netfilter/ipvs/ip_vs_proto_udp.c | 19 +- > net/netfilter/ipvs/ip_vs_xmit.c | 1046 ++++++++++++++------------------- > 14 files changed, 810 insertions(+), 909 deletions(-) > -- > To unsubscribe from this list: send the line "unsubscribe netdev" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe lvs-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
