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authorAlex Shi <alex.shi@intel.com>2012-05-14 14:15:31 -0700
committerTejun Heo <tj@kernel.org>2012-05-14 14:15:31 -0700
commit19e8d69c543f8f62050099892b138e981db952cc (patch)
treed528c64fbf333dccedac785eeebed3adccf5a153 /net/socket.c
parent9ff00d58a915b6747ba2e843ab2d04c712b4dc32 (diff)
downloadlinux-19e8d69c543f8f62050099892b138e981db952cc.tar.gz
net: replace percpu_xxx funcs with this_cpu_xxx or __this_cpu_xxx
percpu_xxx funcs are duplicated with this_cpu_xxx funcs, so replace them for further code clean up. And in preempt safe scenario, __this_cpu_xxx funcs may has a bit better performance since __this_cpu_xxx has no redundant preempt_enable/preempt_disable on some architectures. Signed-off-by: Alex Shi <alex.shi@intel.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> Cc: Patrick McHardy <kaber@trash.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'net/socket.c')
-rw-r--r--net/socket.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/socket.c b/net/socket.c
index 851edcd6b09..08e873ac160 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -479,7 +479,7 @@ static struct socket *sock_alloc(void)
inode->i_uid = current_fsuid();
inode->i_gid = current_fsgid();
- percpu_add(sockets_in_use, 1);
+ this_cpu_add(sockets_in_use, 1);
return sock;
}
@@ -522,7 +522,7 @@ void sock_release(struct socket *sock)
if (rcu_dereference_protected(sock->wq, 1)->fasync_list)
printk(KERN_ERR "sock_release: fasync list not empty!\n");
- percpu_sub(sockets_in_use, 1);
+ this_cpu_sub(sockets_in_use, 1);
if (!sock->file) {
iput(SOCK_INODE(sock));
return;