From 7962b696f5af23450859af90fc025d1df7fea369 Mon Sep 17 00:00:00 2001 From: Nils Faerber Date: Tue, 11 Jan 2011 16:35:09 +0100 Subject: [PATCH] Revert "Forgot to add net/ipv4/tcp_zero_copy.c from put_page_callback patch" This reverts commit ebab7a97621b880e936e2812af96ecdda0de47b9. --- net/ipv4/tcp_zero_copy.c | 49 ---------------------------------------- 1 file changed, 49 deletions(-) delete mode 100644 net/ipv4/tcp_zero_copy.c diff --git a/net/ipv4/tcp_zero_copy.c b/net/ipv4/tcp_zero_copy.c deleted file mode 100644 index 9cd990c7f26..00000000000 --- a/net/ipv4/tcp_zero_copy.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Support routines for TCP zero copy transmit - * - * Created by Vladislav Bolkhovitin - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - */ - -#include - -net_get_page_callback_t net_get_page_callback __read_mostly; -EXPORT_SYMBOL(net_get_page_callback); - -net_put_page_callback_t net_put_page_callback __read_mostly; -EXPORT_SYMBOL(net_put_page_callback); - -/* - * Caller of this function must ensure that at the moment when it's called - * there are no pages in the system with net_priv field set to non-zero - * value. Hence, this function, as well as net_get_page() and net_put_page(), - * don't need any protection. - */ -int net_set_get_put_page_callbacks( - net_get_page_callback_t get_callback, - net_put_page_callback_t put_callback) -{ - int res = 0; - - if ((net_get_page_callback != NULL) && (get_callback != NULL) && - (net_get_page_callback != get_callback)) { - res = -EBUSY; - goto out; - } - - if ((net_put_page_callback != NULL) && (put_callback != NULL) && - (net_put_page_callback != put_callback)) { - res = -EBUSY; - goto out; - } - - net_get_page_callback = get_callback; - net_put_page_callback = put_callback; - -out: - return res; -} -EXPORT_SYMBOL(net_set_get_put_page_callbacks); -- 2.39.2