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Alexander Duyck 3bed3cc415 net: Do not allocate page fragments that are not skb aligned 
This patch addresses the fact that there are drivers, specifically tun,
that will call into the network page fragment allocators with buffer sizes
that are not cache aligned. Doing this could result in data alignment
and DMA performance issues as these fragment pools are also shared with the
skb allocator and any other devices that will use napi_alloc_frags or
netdev_alloc_frags.

Fixes: ffde7328a3 ("net: Split netdev_alloc_frag into __alloc_page_frag and add __napi_alloc_frag")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2019-02-17 15:48:43 -08:00
..
Makefile bpf, sockmap: convert to generic sk_msg interface 2018-10-15 12:23:19 -07:00
datagram.c for-4.21/block-20181221 2018-12-28 13:19:59 -08:00
dev.c net: Fix for_each_netdev_feature on Big endian 2019-02-15 20:23:50 -08:00
dev_addr_lists.c net: dev: Issue NETDEV_PRE_CHANGEADDR 2018-12-13 18:41:38 -08:00
dev_ioctl.c net: dev: Add extack argument to dev_set_mac_address() 2018-12-13 18:41:38 -08:00
devlink.c devlink: Add 'fw_load_policy' generic parameter 2018-12-03 13:55:43 -08:00
drop_monitor.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
dst.c netfilter: nf_tables: add tunnel support 2018-08-03 21:12:12 +02:00
dst_cache.c net: core: dst_cache_set_ip6: Rename 'addr' parameter to 'saddr' for consistency 2018-03-05 12:52:45 -05:00
ethtool.c ethtool: check the return value of get_regs_len 2018-12-28 21:24:56 -08:00
failover.c net: Introduce generic failover module 2018-05-28 22:59:54 -04:00
fib_notifier.c net: Fix fib notifer to return errno 2018-03-29 14:10:30 -04:00
fib_rules.c net/fib_rules: Update fib_nl_dumprule for strict data checking 2018-10-08 10:39:05 -07:00
filter.c bpf: only adjust gso_size on bytestream protocols 2019-02-10 19:57:34 -08:00
flow_dissector.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-12-20 11:53:36 -08:00
gen_estimator.c net: core: protect rate estimator statistics pointer with lock 2018-08-11 12:37:10 -07:00
gen_stats.c net/core: make function ___gnet_stats_copy_basic() static 2018-09-28 10:25:11 -07:00
gro_cells.c gro_cell: add napi_disable in gro_cells_destroy 2018-12-19 15:50:02 -08:00
hwbm.c
…
link_watch.c net: linkwatch: add check for netdevice being present to linkwatch_do_dev 2018-09-19 21:06:46 -07:00
lwt_bpf.c bpf: in __bpf_redirect_no_mac pull mac only if present 2019-01-20 01:11:48 +01:00
lwtunnel.c ipv6: sr: define core operations for seg6local lightweight tunnel 2017-08-07 14:16:22 -07:00
neighbour.c neighbour: Do not perturb drop profiles when neigh_probe 2019-01-17 22:08:14 -08:00
net-procfs.c proc: introduce proc_create_net{,_data} 2018-05-16 07:24:30 +02:00
net-sysfs.c net: core: dev: Add extack argument to dev_change_flags() 2018-12-06 13:26:07 -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 net/ipv6: Udate fib6_table_lookup tracepoint 2018-05-24 23:01:15 -04:00
net_namespace.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-12-24 16:19:56 -08:00
netclassid_cgroup.c cgroup, netclassid: add a preemption point to write_classid 2018-10-23 12:58:17 -07:00
netevent.c
…
netpoll.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-12-27 13:04:52 -08:00
netprio_cgroup.c net: remove duplicate includes 2017-12-13 13:18:46 -05:00
page_pool.c net/page_pool: Fix inconsistent lock state warning 2018-07-19 23:23:01 -07:00
pktgen.c pktgen: Fix fall-through annotation 2018-09-13 15:36:41 -07:00
ptp_classifier.c
…
request_sock.c
…
rtnetlink.c net: rtnetlink: address is mandatory for rtnl_fdb_get 2018-12-30 11:35:36 -08:00
scm.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/user.h> 2017-03-02 08:42:29 +01:00
secure_seq.c infiniband: i40iw, nes: don't use wall time for TCP sequence numbers 2018-07-11 12:10:19 -06:00
skbuff.c net: Do not allocate page fragments that are not skb aligned 2019-02-17 15:48:43 -08:00
skmsg.c sk_msg: Always cancel strp work before freeing the psock 2019-01-29 00:05:03 +01:00
sock.c net: fix possible overflow in __sk_mem_raise_allocated() 2019-02-13 21:05:18 -08:00
sock_diag.c net: sock_diag: Fix spectre v1 gadget in __sock_diag_cmd() 2018-08-14 10:01:24 -07:00
sock_map.c bpf: skmsg, fix psock create on existing kcm/tls port 2018-10-20 00:40:45 +02:00
sock_reuseport.c sctp: add sock_reuseport for the sock in __sctp_hash_endpoint 2018-11-12 09:09:51 -08:00
stream.c tcp: reduce POLLOUT events caused by TCP_NOTSENT_LOWAT 2018-12-04 21:21:18 -08:00
sysctl_net_core.c bpf: fix bpf_jit_limit knob for PAGE_SIZE >= 64K 2018-12-11 19:12:21 -08:00
timestamping.c
…
tso.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
utils.c net: Remove some unneeded semicolon 2018-08-04 13:05:39 -07:00
xdp.c xdp: remove redundant variable 'headroom' 2018-09-01 01:35:53 +02:00