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| author | Alex Shi <alex.shi@intel.com> | 2012-05-14 14:15:31 -0700 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2012-05-14 14:15:31 -0700 |
| commit | 19e8d69c543f8f62050099892b138e981db952cc (patch) | |
| tree | d528c64fbf333dccedac785eeebed3adccf5a153 /net/socket.c | |
| parent | 9ff00d58a915b6747ba2e843ab2d04c712b4dc32 (diff) | |
| download | lwn-19e8d69c543f8f62050099892b138e981db952cc.tar.gz lwn-19e8d69c543f8f62050099892b138e981db952cc.zip | |
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.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/socket.c b/net/socket.c index 851edcd6b098..08e873ac1609 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; |