Upstream keepalive: clearing of c->data in cached connections. Previously, connections returned from keepalive cache had c->data pointing to the keepalive cache item. While this shouldn't be a problem for correct code, as c->data is not expected to be used before it is set, explicitly clearing it might help to avoid confusion.

/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_LINUX_H_INCLUDED_
#define _NGX_LINUX_H_INCLUDED_


ngx_chain_t *ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in,
    off_t limit);


#endif /* _NGX_LINUX_H_INCLUDED_ */