From: David S. Miller <davem@davemloft.net>
Date: Sun, 3 Dec 2017 15:18:28 +0000 (-0500)
Subject: Merge branch 'tcp-2nd-listener-hash'
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=c6d3c96f8d52b8f16de73e778717641e659c4ccc;p=linux.git

Merge branch 'tcp-2nd-listener-hash'

Martin KaFai Lau says:

====================
tcp: Add a 2nd listener hashtable (port+addr)

This patch set adds a 2nd listener hashtable.  It is to resolve
the performance issue when a process is listening at many IP
addresses with the same port (e.g. [IP1]:443, [IP2]:443... [IPN]:443)

v2:
- Move the new lhash2 and lhash2_mask before the existing
  listening_hash to avoid adding another cacheline
  to inet_hashinfo (Suggested by Eric Dumazet, Thanks!)
- I take this chance to plug an existing 4 bytes hole while
  adding 'unsigned int lhash2_mask'.
- Add some comments about lhash2 in inet_hashtables.h
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
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c6d3c96f8d52b8f16de73e778717641e659c4ccc