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Merge branch 'vfs-scale-working' of git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin

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* 'vfs-scale-working' of git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin: (57 commits)
  fs: scale mntget/mntput
  fs: rename vfsmount counter helpers
  fs: implement faster dentry memcmp
  fs: prefetch inode data in dcache lookup
  fs: improve scalability of pseudo filesystems
  fs: dcache per-inode inode alias locking
  fs: dcache per-bucket dcache hash locking
  bit_spinlock: add required includes
  kernel: add bl_list
  xfs: provide simple rcu-walk ACL implementation
  btrfs: provide simple rcu-walk ACL implementation
  ext2,3,4: provide simple rcu-walk ACL implementation
  fs: provide simple rcu-walk generic_check_acl implementation
  fs: provide rcu-walk aware permission i_ops
  fs: rcu-walk aware d_revalidate method
  fs: cache optimise dentry and inode for rcu-walk
  fs: dcache reduce branches in lookup path
  fs: dcache remove d_mounted
  fs: fs_struct use seqlock
  fs: rcu-walk for path lookup
  ...
This commit is contained in:
Linus Torvalds 2011-01-07 08:56:33 -08:00
commit b4a45f5fe8
212 changed files with 4778 additions and 2018 deletions
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24
net/socket.c
View file

@ -262,6 +262,7 @@ static struct inode *sock_alloc_inode(struct super_block *sb)
}
static void wq_free_rcu(struct rcu_head *head)
{
struct socket_wq *wq = container_of(head, struct socket_wq, rcu);
@ -360,14 +361,14 @@ static int sock_alloc_file(struct socket *sock, struct file **f, int flags)
if (unlikely(fd < 0))
return fd;
path.dentry = d_alloc(sock_mnt->mnt_sb->s_root, &name);
path.dentry = d_alloc_pseudo(sock_mnt->mnt_sb, &name);
if (unlikely(!path.dentry)) {
put_unused_fd(fd);
return -ENOMEM;
}
path.mnt = mntget(sock_mnt);
path.dentry->d_op = &sockfs_dentry_operations;
d_set_d_op(path.dentry, &sockfs_dentry_operations);
d_instantiate(path.dentry, SOCK_INODE(sock));
SOCK_INODE(sock)->i_fop = &socket_file_ops;
@ -2390,6 +2391,8 @@ EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
int err;
/*
* Initialize sock SLAB cache.
*/
@ -2406,8 +2409,15 @@ static int __init sock_init(void)
*/
init_inodecache();
register_filesystem(&sock_fs_type);
err = register_filesystem(&sock_fs_type);
if (err)
goto out_fs;
sock_mnt = kern_mount(&sock_fs_type);
if (IS_ERR(sock_mnt)) {
err = PTR_ERR(sock_mnt);
goto out_mount;
}
/* The real protocol initialization is performed in later initcalls.
*/
@ -2420,7 +2430,13 @@ static int __init sock_init(void)
skb_timestamping_init();
#endif
return 0;
out:
return err;
out_mount:
unregister_filesystem(&sock_fs_type);
out_fs:
goto out;
}
core_initcall(sock_init); /* early initcall */