linux/net/core
Jesper Dangaard Brouer f13fc10785 page_pool: help compiler remove code in case CONFIG_NUMA=n
When kernel is compiled without NUMA support, then page_pool NUMA
config setting (pool->p.nid) doesn't make any practical sense. The
compiler cannot see that it can remove the code paths.

This patch avoids reading pool->p.nid setting in case of !CONFIG_NUMA,
in allocation and numa check code, which helps compiler to see the
optimisation potential. It leaves update code intact to keep API the
same.

 $ ./scripts/bloat-o-meter net/core/page_pool.o-numa-enabled \
                           net/core/page_pool.o-numa-disabled
 add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-113 (-113)
 Function                                     old     new   delta
 page_pool_create                             401     398      -3
 __page_pool_alloc_pages_slow                 439     426     -13
 page_pool_refill_alloc_cache                 425     328     -97
 Total: Before=3611, After=3498, chg -3.13%

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-02 15:37:52 -08:00
..
bpf_sk_storage.c bpf: Switch bpf_map ref counter to atomic64_t so bpf_map_inc() never fails 2019-11-18 11:41:59 +01:00
datagram.c net: add READ_ONCE() annotation in __skb_wait_for_more_packets() 2019-10-28 13:33:41 -07:00
datagram.h net/core: Allow the compiler to verify declaration and definition consistency 2019-03-27 13:49:44 -07:00
dev_addr_lists.c net: remove unnecessary variables and callback 2019-10-24 14:53:49 -07:00
dev_ioctl.c net: Introduce peer to peer one step PTP time stamping. 2019-12-25 19:51:34 -08:00
dev.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2019-12-30 14:22:11 -08:00
devlink.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-16 21:51:42 -08:00
drop_monitor.c drop_monitor: Better sanitize notified packets 2019-09-16 21:39:27 +02:00
dst_cache.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
dst.c net: print proper warning on dst underflow 2019-09-26 09:05:56 +02:00
failover.c failover: allow name change on IFF_UP slave interfaces 2019-04-10 22:12:26 -07:00
fib_notifier.c net: fib_notifier: propagate extack down to the notifier block callback 2019-10-04 11:10:56 -07:00
fib_rules.c net: fib_notifier: propagate extack down to the notifier block callback 2019-10-04 11:10:56 -07:00
filter.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2019-12-27 14:20:10 -08:00
flow_dissector.c treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
flow_offload.c net: core: rename indirect block ingress cb function 2019-12-06 20:45:09 -08:00
gen_estimator.c net_sched: gen_estimator: extend packet counter to 64bit 2019-11-06 21:51:36 -08:00
gen_stats.c net_sched: add TCA_STATS_PKT64 attribute 2019-11-05 18:20:55 -08:00
gro_cells.c gro_cells: make sure device is up in gro_cells_receive() 2019-03-10 11:07:14 -07:00
hwbm.c net: hwbm: Make the hwbm_pool lock a mutex 2019-06-09 19:40:10 -07:00
link_watch.c net: link_watch: prevent starvation when processing linkwatch wq 2019-07-01 19:02:47 -07:00
lwt_bpf.c net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup 2019-12-04 12:27:13 -08:00
lwtunnel.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
Makefile ethtool: move to its own directory 2019-12-12 17:07:05 -08:00
neighbour.c neighbour: remove neigh_cleanup() method 2019-12-09 09:48:47 -08:00
net_namespace.c netns: fix GFP flags in rtnl_net_notifyid() 2019-10-25 20:14:42 -07:00
net-procfs.c net: procfs: use index hashlist instead of name hashlist 2019-10-01 14:47:19 -07:00
net-sysfs.c net-sysfs: Call dev_hold always in rx_queue_add_kobject 2019-12-17 22:57:11 -08:00
net-sysfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
net-traces.c page_pool: add tracepoints for page_pool with details need by XDP 2019-06-19 11:23:13 -04:00
netclassid_cgroup.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
netevent.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
netpoll.c net: fix skb use after free in netpoll 2019-08-27 20:52:02 -07:00
netprio_cgroup.c netprio: use css ID instead of cgroup ID 2019-11-12 08:18:03 -08:00
page_pool.c page_pool: help compiler remove code in case CONFIG_NUMA=n 2020-01-02 15:37:52 -08:00
pktgen.c pktgen: remove unnecessary assignment in pktgen_xmit() 2019-10-17 14:25:13 -04:00
ptp_classifier.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295 2019-06-05 17:36:38 +02:00
request_sock.c tcp: add rcu protection around tp->fastopen_rsk 2019-10-13 10:13:08 -07:00
rtnetlink.c rtnetlink: provide permanent hardware address in RTM_NEWLINK 2019-12-12 17:07:05 -08:00
scm.c y2038: socket: remove timespec reference in timestamping 2019-11-15 14:38:29 +01:00
secure_seq.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
skbuff.c net: Rephrased comments section of skb_mpls_pop() 2019-12-24 22:24:45 -08:00
skmsg.c net: skmsg: fix TLS 1.3 crash with full sk_msg 2019-11-28 22:40:29 -08:00
sock_diag.c sock: make cookie generation global instead of per netns 2019-08-09 13:14:46 -07:00
sock_map.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-09-15 14:17:27 +02:00
sock_reuseport.c net/core: Replace rcu_swap_protected() with rcu_replace_pointer() 2019-10-30 08:45:26 -07:00
sock.c net: annotate lockless accesses to sk->sk_pacing_shift 2019-12-17 22:09:52 -08:00
stream.c tcp: make sure EPOLLOUT wont be missed 2019-08-19 13:07:43 -07:00
sysctl_net_core.c net, sysctl: Fix compiler warning when only cBPF is present 2019-12-19 17:17:51 +01:00
timestamping.c net: Introduce a new MII time stamping interface. 2019-12-25 19:51:33 -08:00
tso.c net: Use skb accessors in network core 2019-07-22 20:47:56 -07:00
utils.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
xdp.c treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00