From 822f9bb104c9d1d2dea3669f1941558c6304cf92 Mon Sep 17 00:00:00 2001
From: Alexey Dobriyan <adobriyan@gmail.com>
Date: Mon, 3 Apr 2017 01:18:23 +0300
Subject: [PATCH] soreuseport: use "unsigned int" in __reuseport_alloc()
Number of sockets is limited by 16-bit, so 64-bit allocation will never
happen.
16-bit ops are the worst code density-wise on x86_64 because of
additional prefix (66).
Space savings:
add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-3 (-3)
function old new delta
reuseport_add_sock 539 536 -3
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/core/sock_reuseport.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/core/sock_reuseport.c b/net/core/sock_reuseport.c
index 9a1a352fd1ebe..eed1ebf7f29d0 100644
--- a/net/core/sock_reuseport.c
+++ b/net/core/sock_reuseport.c
@@ -13,9 +13,9 @@
static DEFINE_SPINLOCK(reuseport_lock);
-static struct sock_reuseport *__reuseport_alloc(u16 max_socks)
+static struct sock_reuseport *__reuseport_alloc(unsigned int max_socks)
{
- size_t size = sizeof(struct sock_reuseport) +
+ unsigned int size = sizeof(struct sock_reuseport) +
sizeof(struct sock *) * max_socks;
struct sock_reuseport *reuse = kzalloc(size, GFP_ATOMIC);
--
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