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dev: add per net_device packet type chains

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When many pf_packet listeners are created on a lot of interfaces the
current implementation using global packet type lists scales poorly.
This patch adds per net_device packet type lists to fix this problem.

The patch was originally written by Eric Biederman for linux-2.6.29.
Tested on linux-3.16.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Salam Noureddine <noureddine@arista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Salam Noureddine
2015-01-27 11:35:48 -08:00
committed by David S. Miller
parent 7b4ce694b2
commit 7866a62104
2 changed files with 89 additions and 51 deletions
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2
include/linux/netdevice.h
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@@ -1514,6 +1514,8 @@ struct net_device {
struct list_head napi_list;
struct list_head unreg_list;
struct list_head close_list;
struct list_head ptype_all;
struct list_head ptype_specific;
struct {
struct list_head upper;