diff options
Diffstat (limited to 'net/socket.c')
| -rw-r--r-- | net/socket.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/net/socket.c b/net/socket.c index 0c544ae48eac..b36c981d04dc 100644 --- a/net/socket.c +++ b/net/socket.c @@ -521,9 +521,26 @@ static ssize_t sockfs_listxattr(struct dentry *dentry, char *buffer, return used; } +static int sockfs_setattr(struct dentry *dentry, struct iattr *iattr) +{ + int err = simple_setattr(dentry, iattr); + + if (!err && (iattr->ia_valid & ATTR_UID)) { + struct socket *sock = SOCKET_I(d_inode(dentry)); + + if (sock->sk) + sock->sk->sk_uid = iattr->ia_uid; + else + err = -ENOENT; + } + + return err; +} + static const struct inode_operations sockfs_inode_ops = { .getxattr = sockfs_getxattr, .listxattr = sockfs_listxattr, + .setattr = sockfs_setattr, }; /** @@ -565,12 +582,16 @@ static struct socket *sock_alloc(void) * an inode not a file. */ -void sock_release(struct socket *sock) +static void __sock_release(struct socket *sock, struct inode *inode) { if (sock->ops) { struct module *owner = sock->ops->owner; + if (inode) + inode_lock(inode); sock->ops->release(sock); + if (inode) + inode_unlock(inode); sock->ops = NULL; module_put(owner); } @@ -585,6 +606,11 @@ void sock_release(struct socket *sock) } sock->file = NULL; } + +void sock_release(struct socket *sock) +{ + __sock_release(sock, NULL); +} EXPORT_SYMBOL(sock_release); void __sock_tx_timestamp(const struct sock *sk, __u8 *tx_flags) @@ -1021,7 +1047,7 @@ static int sock_mmap(struct file *file, struct vm_area_struct *vma) static int sock_close(struct inode *inode, struct file *filp) { - sock_release(SOCKET_I(inode)); + __sock_release(SOCKET_I(inode), inode); return 0; } |