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>
diff --git a/net/socket.c b/net/socket.c
index 02dc82d..26ed35c 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -467,7 +467,7 @@
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;