vfs: dont chain pipe/anon/socket on superblock s_inodes list

Workloads using pipes and sockets hit inode_sb_list_lock contention.

superblock s_inodes list is needed for quota, dirty, pagecache and
fsnotify management. pipe/anon/socket fs are clearly not candidates for
these.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/socket.c b/net/socket.c
index 02dc82db3d23..26ed35c7751e 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -467,7 +467,7 @@ static struct socket *sock_alloc(void)
         struct inode *inode;
         struct socket *sock;
 
-        inode = new_inode(sock_mnt->mnt_sb);
+        inode = new_inode_pseudo(sock_mnt->mnt_sb);
         if (!inode)
                 return NULL;