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Diffstat (limited to 'ANDROID_3.4.5/fs/ocfs2/cluster/netdebug.c')
-rw-r--r--ANDROID_3.4.5/fs/ocfs2/cluster/netdebug.c579
1 files changed, 0 insertions, 579 deletions
diff --git a/ANDROID_3.4.5/fs/ocfs2/cluster/netdebug.c b/ANDROID_3.4.5/fs/ocfs2/cluster/netdebug.c
deleted file mode 100644
index 73ba8192..00000000
--- a/ANDROID_3.4.5/fs/ocfs2/cluster/netdebug.c
+++ /dev/null
@@ -1,579 +0,0 @@
-/* -*- mode: c; c-basic-offset: 8; -*-
- * vim: noexpandtab sw=8 ts=8 sts=0:
- *
- * netdebug.c
- *
- * debug functionality for o2net
- *
- * Copyright (C) 2005, 2008 Oracle. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA.
- *
- */
-
-#ifdef CONFIG_DEBUG_FS
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/idr.h>
-#include <linux/kref.h>
-#include <linux/seq_file.h>
-#include <linux/debugfs.h>
-
-#include <linux/uaccess.h>
-
-#include "tcp.h"
-#include "nodemanager.h"
-#define MLOG_MASK_PREFIX ML_TCP
-#include "masklog.h"
-
-#include "tcp_internal.h"
-
-#define O2NET_DEBUG_DIR "o2net"
-#define SC_DEBUG_NAME "sock_containers"
-#define NST_DEBUG_NAME "send_tracking"
-#define STATS_DEBUG_NAME "stats"
-#define NODES_DEBUG_NAME "connected_nodes"
-
-#define SHOW_SOCK_CONTAINERS 0
-#define SHOW_SOCK_STATS 1
-
-static struct dentry *o2net_dentry;
-static struct dentry *sc_dentry;
-static struct dentry *nst_dentry;
-static struct dentry *stats_dentry;
-static struct dentry *nodes_dentry;
-
-static DEFINE_SPINLOCK(o2net_debug_lock);
-
-static LIST_HEAD(sock_containers);
-static LIST_HEAD(send_tracking);
-
-void o2net_debug_add_nst(struct o2net_send_tracking *nst)
-{
- spin_lock(&o2net_debug_lock);
- list_add(&nst->st_net_debug_item, &send_tracking);
- spin_unlock(&o2net_debug_lock);
-}
-
-void o2net_debug_del_nst(struct o2net_send_tracking *nst)
-{
- spin_lock(&o2net_debug_lock);
- if (!list_empty(&nst->st_net_debug_item))
- list_del_init(&nst->st_net_debug_item);
- spin_unlock(&o2net_debug_lock);
-}
-
-static struct o2net_send_tracking
- *next_nst(struct o2net_send_tracking *nst_start)
-{
- struct o2net_send_tracking *nst, *ret = NULL;
-
- assert_spin_locked(&o2net_debug_lock);
-
- list_for_each_entry(nst, &nst_start->st_net_debug_item,
- st_net_debug_item) {
- /* discover the head of the list */
- if (&nst->st_net_debug_item == &send_tracking)
- break;
-
- /* use st_task to detect real nsts in the list */
- if (nst->st_task != NULL) {
- ret = nst;
- break;
- }
- }
-
- return ret;
-}
-
-static void *nst_seq_start(struct seq_file *seq, loff_t *pos)
-{
- struct o2net_send_tracking *nst, *dummy_nst = seq->private;
-
- spin_lock(&o2net_debug_lock);
- nst = next_nst(dummy_nst);
- spin_unlock(&o2net_debug_lock);
-
- return nst;
-}
-
-static void *nst_seq_next(struct seq_file *seq, void *v, loff_t *pos)
-{
- struct o2net_send_tracking *nst, *dummy_nst = seq->private;
-
- spin_lock(&o2net_debug_lock);
- nst = next_nst(dummy_nst);
- list_del_init(&dummy_nst->st_net_debug_item);
- if (nst)
- list_add(&dummy_nst->st_net_debug_item,
- &nst->st_net_debug_item);
- spin_unlock(&o2net_debug_lock);
-
- return nst; /* unused, just needs to be null when done */
-}
-
-static int nst_seq_show(struct seq_file *seq, void *v)
-{
- struct o2net_send_tracking *nst, *dummy_nst = seq->private;
- ktime_t now;
- s64 sock, send, status;
-
- spin_lock(&o2net_debug_lock);
- nst = next_nst(dummy_nst);
- if (!nst)
- goto out;
-
- now = ktime_get();
- sock = ktime_to_us(ktime_sub(now, nst->st_sock_time));
- send = ktime_to_us(ktime_sub(now, nst->st_send_time));
- status = ktime_to_us(ktime_sub(now, nst->st_status_time));
-
- /* get_task_comm isn't exported. oh well. */
- seq_printf(seq, "%p:\n"
- " pid: %lu\n"
- " tgid: %lu\n"
- " process name: %s\n"
- " node: %u\n"
- " sc: %p\n"
- " message id: %d\n"
- " message type: %u\n"
- " message key: 0x%08x\n"
- " sock acquiry: %lld usecs ago\n"
- " send start: %lld usecs ago\n"
- " wait start: %lld usecs ago\n",
- nst, (unsigned long)task_pid_nr(nst->st_task),
- (unsigned long)nst->st_task->tgid,
- nst->st_task->comm, nst->st_node,
- nst->st_sc, nst->st_id, nst->st_msg_type,
- nst->st_msg_key,
- (long long)sock,
- (long long)send,
- (long long)status);
-
-out:
- spin_unlock(&o2net_debug_lock);
-
- return 0;
-}
-
-static void nst_seq_stop(struct seq_file *seq, void *v)
-{
-}
-
-static const struct seq_operations nst_seq_ops = {
- .start = nst_seq_start,
- .next = nst_seq_next,
- .stop = nst_seq_stop,
- .show = nst_seq_show,
-};
-
-static int nst_fop_open(struct inode *inode, struct file *file)
-{
- struct o2net_send_tracking *dummy_nst;
- struct seq_file *seq;
- int ret;
-
- dummy_nst = kmalloc(sizeof(struct o2net_send_tracking), GFP_KERNEL);
- if (dummy_nst == NULL) {
- ret = -ENOMEM;
- goto out;
- }
- dummy_nst->st_task = NULL;
-
- ret = seq_open(file, &nst_seq_ops);
- if (ret)
- goto out;
-
- seq = file->private_data;
- seq->private = dummy_nst;
- o2net_debug_add_nst(dummy_nst);
-
- dummy_nst = NULL;
-
-out:
- kfree(dummy_nst);
- return ret;
-}
-
-static int nst_fop_release(struct inode *inode, struct file *file)
-{
- struct seq_file *seq = file->private_data;
- struct o2net_send_tracking *dummy_nst = seq->private;
-
- o2net_debug_del_nst(dummy_nst);
- return seq_release_private(inode, file);
-}
-
-static const struct file_operations nst_seq_fops = {
- .open = nst_fop_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = nst_fop_release,
-};
-
-void o2net_debug_add_sc(struct o2net_sock_container *sc)
-{
- spin_lock(&o2net_debug_lock);
- list_add(&sc->sc_net_debug_item, &sock_containers);
- spin_unlock(&o2net_debug_lock);
-}
-
-void o2net_debug_del_sc(struct o2net_sock_container *sc)
-{
- spin_lock(&o2net_debug_lock);
- list_del_init(&sc->sc_net_debug_item);
- spin_unlock(&o2net_debug_lock);
-}
-
-struct o2net_sock_debug {
- int dbg_ctxt;
- struct o2net_sock_container *dbg_sock;
-};
-
-static struct o2net_sock_container
- *next_sc(struct o2net_sock_container *sc_start)
-{
- struct o2net_sock_container *sc, *ret = NULL;
-
- assert_spin_locked(&o2net_debug_lock);
-
- list_for_each_entry(sc, &sc_start->sc_net_debug_item,
- sc_net_debug_item) {
- /* discover the head of the list miscast as a sc */
- if (&sc->sc_net_debug_item == &sock_containers)
- break;
-
- /* use sc_page to detect real scs in the list */
- if (sc->sc_page != NULL) {
- ret = sc;
- break;
- }
- }
-
- return ret;
-}
-
-static void *sc_seq_start(struct seq_file *seq, loff_t *pos)
-{
- struct o2net_sock_debug *sd = seq->private;
- struct o2net_sock_container *sc, *dummy_sc = sd->dbg_sock;
-
- spin_lock(&o2net_debug_lock);
- sc = next_sc(dummy_sc);
- spin_unlock(&o2net_debug_lock);
-
- return sc;
-}
-
-static void *sc_seq_next(struct seq_file *seq, void *v, loff_t *pos)
-{
- struct o2net_sock_debug *sd = seq->private;
- struct o2net_sock_container *sc, *dummy_sc = sd->dbg_sock;
-
- spin_lock(&o2net_debug_lock);
- sc = next_sc(dummy_sc);
- list_del_init(&dummy_sc->sc_net_debug_item);
- if (sc)
- list_add(&dummy_sc->sc_net_debug_item, &sc->sc_net_debug_item);
- spin_unlock(&o2net_debug_lock);
-
- return sc; /* unused, just needs to be null when done */
-}
-
-#ifdef CONFIG_OCFS2_FS_STATS
-# define sc_send_count(_s) ((_s)->sc_send_count)
-# define sc_recv_count(_s) ((_s)->sc_recv_count)
-# define sc_tv_acquiry_total_ns(_s) (ktime_to_ns((_s)->sc_tv_acquiry_total))
-# define sc_tv_send_total_ns(_s) (ktime_to_ns((_s)->sc_tv_send_total))
-# define sc_tv_status_total_ns(_s) (ktime_to_ns((_s)->sc_tv_status_total))
-# define sc_tv_process_total_ns(_s) (ktime_to_ns((_s)->sc_tv_process_total))
-#else
-# define sc_send_count(_s) (0U)
-# define sc_recv_count(_s) (0U)
-# define sc_tv_acquiry_total_ns(_s) (0LL)
-# define sc_tv_send_total_ns(_s) (0LL)
-# define sc_tv_status_total_ns(_s) (0LL)
-# define sc_tv_process_total_ns(_s) (0LL)
-#endif
-
-/* So that debugfs.ocfs2 can determine which format is being used */
-#define O2NET_STATS_STR_VERSION 1
-static void sc_show_sock_stats(struct seq_file *seq,
- struct o2net_sock_container *sc)
-{
- if (!sc)
- return;
-
- seq_printf(seq, "%d,%u,%lu,%lld,%lld,%lld,%lu,%lld\n", O2NET_STATS_STR_VERSION,
- sc->sc_node->nd_num, (unsigned long)sc_send_count(sc),
- (long long)sc_tv_acquiry_total_ns(sc),
- (long long)sc_tv_send_total_ns(sc),
- (long long)sc_tv_status_total_ns(sc),
- (unsigned long)sc_recv_count(sc),
- (long long)sc_tv_process_total_ns(sc));
-}
-
-static void sc_show_sock_container(struct seq_file *seq,
- struct o2net_sock_container *sc)
-{
- struct inet_sock *inet = NULL;
- __be32 saddr = 0, daddr = 0;
- __be16 sport = 0, dport = 0;
-
- if (!sc)
- return;
-
- if (sc->sc_sock) {
- inet = inet_sk(sc->sc_sock->sk);
- /* the stack's structs aren't sparse endian clean */
- saddr = (__force __be32)inet->inet_saddr;
- daddr = (__force __be32)inet->inet_daddr;
- sport = (__force __be16)inet->inet_sport;
- dport = (__force __be16)inet->inet_dport;
- }
-
- /* XXX sigh, inet-> doesn't have sparse annotation so any
- * use of it here generates a warning with -Wbitwise */
- seq_printf(seq, "%p:\n"
- " krefs: %d\n"
- " sock: %pI4:%u -> "
- "%pI4:%u\n"
- " remote node: %s\n"
- " page off: %zu\n"
- " handshake ok: %u\n"
- " timer: %lld usecs\n"
- " data ready: %lld usecs\n"
- " advance start: %lld usecs\n"
- " advance stop: %lld usecs\n"
- " func start: %lld usecs\n"
- " func stop: %lld usecs\n"
- " func key: 0x%08x\n"
- " func type: %u\n",
- sc,
- atomic_read(&sc->sc_kref.refcount),
- &saddr, inet ? ntohs(sport) : 0,
- &daddr, inet ? ntohs(dport) : 0,
- sc->sc_node->nd_name,
- sc->sc_page_off,
- sc->sc_handshake_ok,
- (long long)ktime_to_us(sc->sc_tv_timer),
- (long long)ktime_to_us(sc->sc_tv_data_ready),
- (long long)ktime_to_us(sc->sc_tv_advance_start),
- (long long)ktime_to_us(sc->sc_tv_advance_stop),
- (long long)ktime_to_us(sc->sc_tv_func_start),
- (long long)ktime_to_us(sc->sc_tv_func_stop),
- sc->sc_msg_key,
- sc->sc_msg_type);
-}
-
-static int sc_seq_show(struct seq_file *seq, void *v)
-{
- struct o2net_sock_debug *sd = seq->private;
- struct o2net_sock_container *sc, *dummy_sc = sd->dbg_sock;
-
- spin_lock(&o2net_debug_lock);
- sc = next_sc(dummy_sc);
-
- if (sc) {
- if (sd->dbg_ctxt == SHOW_SOCK_CONTAINERS)
- sc_show_sock_container(seq, sc);
- else
- sc_show_sock_stats(seq, sc);
- }
-
- spin_unlock(&o2net_debug_lock);
-
- return 0;
-}
-
-static void sc_seq_stop(struct seq_file *seq, void *v)
-{
-}
-
-static const struct seq_operations sc_seq_ops = {
- .start = sc_seq_start,
- .next = sc_seq_next,
- .stop = sc_seq_stop,
- .show = sc_seq_show,
-};
-
-static int sc_common_open(struct file *file, struct o2net_sock_debug *sd)
-{
- struct o2net_sock_container *dummy_sc;
- struct seq_file *seq;
- int ret;
-
- dummy_sc = kmalloc(sizeof(struct o2net_sock_container), GFP_KERNEL);
- if (dummy_sc == NULL) {
- ret = -ENOMEM;
- goto out;
- }
- dummy_sc->sc_page = NULL;
-
- ret = seq_open(file, &sc_seq_ops);
- if (ret)
- goto out;
-
- seq = file->private_data;
- seq->private = sd;
- sd->dbg_sock = dummy_sc;
- o2net_debug_add_sc(dummy_sc);
-
- dummy_sc = NULL;
-
-out:
- kfree(dummy_sc);
- return ret;
-}
-
-static int sc_fop_release(struct inode *inode, struct file *file)
-{
- struct seq_file *seq = file->private_data;
- struct o2net_sock_debug *sd = seq->private;
- struct o2net_sock_container *dummy_sc = sd->dbg_sock;
-
- o2net_debug_del_sc(dummy_sc);
- return seq_release_private(inode, file);
-}
-
-static int stats_fop_open(struct inode *inode, struct file *file)
-{
- struct o2net_sock_debug *sd;
-
- sd = kmalloc(sizeof(struct o2net_sock_debug), GFP_KERNEL);
- if (sd == NULL)
- return -ENOMEM;
-
- sd->dbg_ctxt = SHOW_SOCK_STATS;
- sd->dbg_sock = NULL;
-
- return sc_common_open(file, sd);
-}
-
-static const struct file_operations stats_seq_fops = {
- .open = stats_fop_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = sc_fop_release,
-};
-
-static int sc_fop_open(struct inode *inode, struct file *file)
-{
- struct o2net_sock_debug *sd;
-
- sd = kmalloc(sizeof(struct o2net_sock_debug), GFP_KERNEL);
- if (sd == NULL)
- return -ENOMEM;
-
- sd->dbg_ctxt = SHOW_SOCK_CONTAINERS;
- sd->dbg_sock = NULL;
-
- return sc_common_open(file, sd);
-}
-
-static const struct file_operations sc_seq_fops = {
- .open = sc_fop_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = sc_fop_release,
-};
-
-static int o2net_fill_bitmap(char *buf, int len)
-{
- unsigned long map[BITS_TO_LONGS(O2NM_MAX_NODES)];
- int i = -1, out = 0;
-
- o2net_fill_node_map(map, sizeof(map));
-
- while ((i = find_next_bit(map, O2NM_MAX_NODES, i + 1)) < O2NM_MAX_NODES)
- out += snprintf(buf + out, PAGE_SIZE - out, "%d ", i);
- out += snprintf(buf + out, PAGE_SIZE - out, "\n");
-
- return out;
-}
-
-static int nodes_fop_open(struct inode *inode, struct file *file)
-{
- char *buf;
-
- buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- i_size_write(inode, o2net_fill_bitmap(buf, PAGE_SIZE));
-
- file->private_data = buf;
-
- return 0;
-}
-
-static int o2net_debug_release(struct inode *inode, struct file *file)
-{
- kfree(file->private_data);
- return 0;
-}
-
-static ssize_t o2net_debug_read(struct file *file, char __user *buf,
- size_t nbytes, loff_t *ppos)
-{
- return simple_read_from_buffer(buf, nbytes, ppos, file->private_data,
- i_size_read(file->f_mapping->host));
-}
-
-static const struct file_operations nodes_fops = {
- .open = nodes_fop_open,
- .release = o2net_debug_release,
- .read = o2net_debug_read,
- .llseek = generic_file_llseek,
-};
-
-void o2net_debugfs_exit(void)
-{
- debugfs_remove(nodes_dentry);
- debugfs_remove(stats_dentry);
- debugfs_remove(sc_dentry);
- debugfs_remove(nst_dentry);
- debugfs_remove(o2net_dentry);
-}
-
-int o2net_debugfs_init(void)
-{
- umode_t mode = S_IFREG|S_IRUSR;
-
- o2net_dentry = debugfs_create_dir(O2NET_DEBUG_DIR, NULL);
- if (o2net_dentry)
- nst_dentry = debugfs_create_file(NST_DEBUG_NAME, mode,
- o2net_dentry, NULL, &nst_seq_fops);
- if (nst_dentry)
- sc_dentry = debugfs_create_file(SC_DEBUG_NAME, mode,
- o2net_dentry, NULL, &sc_seq_fops);
- if (sc_dentry)
- stats_dentry = debugfs_create_file(STATS_DEBUG_NAME, mode,
- o2net_dentry, NULL, &stats_seq_fops);
- if (stats_dentry)
- nodes_dentry = debugfs_create_file(NODES_DEBUG_NAME, mode,
- o2net_dentry, NULL, &nodes_fops);
- if (nodes_dentry)
- return 0;
-
- o2net_debugfs_exit();
- mlog_errno(-ENOMEM);
- return -ENOMEM;
-}
-
-#endif /* CONFIG_DEBUG_FS */
generated by cgit (git 2.34.1) at 2025-01-09 01:42:59 +0000