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af_unix: Remove unix_table_locks.

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unix_table_locks are to protect the global hash table, unix_socket_table.
The previous commit removed it, so let's clean up the unnecessary locks.

Here is a test result on EC2 c5.9xlarge where 10 processes run concurrently
in different netns and bind 100,000 sockets for each.

  without this series : 1m 38s
  with this series    :    11s

It is ~10x faster because the global hash table is split into 10 netns in
this case.

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kuniyuki Iwashima
2022-06-21 10:19:13 -07:00
committed by David S. Miller
parent cf2f225e26
commit 2f7ca90a01
3 changed files with 9 additions and 42 deletions
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include/net/af_unix.h
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@@ -21,7 +21,6 @@ struct sock *unix_peer_get(struct sock *sk);
#define UNIX_HASH_BITS 8
extern unsigned int unix_tot_inflight;
extern spinlock_t unix_table_locks[UNIX_HASH_SIZE];
struct unix_address {
refcount_t refcnt;