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authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-14 21:37:28 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-14 21:37:28 +0400
commitd7e9660ad9d5e0845f52848bce31bcf5cdcdea6b (patch)
treec6c67d145771187b194d79d603742b31090a59d6 /net/rds/tcp_stats.c
parentb8cb48aae1b8c50b37dcb7710363aa69a7a0d9ca (diff)
parent13af7a6ea502fcdd4c0e3d7de6e332b102309491 (diff)
downloadlinux-d7e9660ad9d5e0845f52848bce31bcf5cdcdea6b.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1623 commits) netxen: update copyright netxen: fix tx timeout recovery netxen: fix file firmware leak netxen: improve pci memory access netxen: change firmware write size tg3: Fix return ring size breakage netxen: build fix for INET=n cdc-phonet: autoconfigure Phonet address Phonet: back-end for autoconfigured addresses Phonet: fix netlink address dump error handling ipv6: Add IFA_F_DADFAILED flag net: Add DEVTYPE support for Ethernet based devices mv643xx_eth.c: remove unused txq_set_wrr() ucc_geth: Fix hangs after switching from full to half duplex ucc_geth: Rearrange some code to avoid forward declarations phy/marvell: Make non-aneg speed/duplex forcing work for 88E1111 PHYs drivers/net/phy: introduce missing kfree drivers/net/wan: introduce missing kfree net: force bridge module(s) to be GPL Subject: [PATCH] appletalk: Fix skb leak when ipddp interface is not loaded ... Fixed up trivial conflicts: - arch/x86/include/asm/socket.h converted to <asm-generic/socket.h> in the x86 tree. The generic header has the same new #define's, so that works out fine. - drivers/net/tun.c fix conflict between 89f56d1e9 ("tun: reuse struct sock fields") that switched over to using 'tun->socket.sk' instead of the redundantly available (and thus removed) 'tun->sk', and 2b980dbd ("lsm: Add hooks to the TUN driver") which added a new 'tun->sk' use. Noted in 'next' by Stephen Rothwell.
Diffstat (limited to 'net/rds/tcp_stats.c')
-rw-r--r--net/rds/tcp_stats.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/net/rds/tcp_stats.c b/net/rds/tcp_stats.c
new file mode 100644
index 000000000000..d5898d03cd68
--- /dev/null
+++ b/net/rds/tcp_stats.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2006 Oracle. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+#include <linux/percpu.h>
+#include <linux/seq_file.h>
+#include <linux/proc_fs.h>
+
+#include "rds.h"
+#include "tcp.h"
+
+DEFINE_PER_CPU(struct rds_tcp_statistics, rds_tcp_stats)
+ ____cacheline_aligned;
+
+static const char const *rds_tcp_stat_names[] = {
+ "tcp_data_ready_calls",
+ "tcp_write_space_calls",
+ "tcp_sndbuf_full",
+ "tcp_connect_raced",
+ "tcp_listen_closed_stale",
+};
+
+unsigned int rds_tcp_stats_info_copy(struct rds_info_iterator *iter,
+ unsigned int avail)
+{
+ struct rds_tcp_statistics stats = {0, };
+ uint64_t *src;
+ uint64_t *sum;
+ size_t i;
+ int cpu;
+
+ if (avail < ARRAY_SIZE(rds_tcp_stat_names))
+ goto out;
+
+ for_each_online_cpu(cpu) {
+ src = (uint64_t *)&(per_cpu(rds_tcp_stats, cpu));
+ sum = (uint64_t *)&stats;
+ for (i = 0; i < sizeof(stats) / sizeof(uint64_t); i++)
+ *(sum++) += *(src++);
+ }
+
+ rds_stats_info_copy(iter, (uint64_t *)&stats, rds_tcp_stat_names,
+ ARRAY_SIZE(rds_tcp_stat_names));
+out:
+ return ARRAY_SIZE(rds_tcp_stat_names);
+}