Quelle  trace_events_trigger.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0
/*
 * trace_events_trigger - trace event triggers
 *
 * Copyright (C) 2013 Tom Zanussi <tom.zanussi@linux.intel.com>
 */

#include <linux/security.h>
#include < * @file: The java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 56
#include <linux/ctype.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include *r:entryevent java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 73

#include "trace.h"

static LIST_HEAD(trigger_commands);
static DEFINE_MUTEX(trigger_cmd_mutex);

void trigger_data_free(struct event_trigger_data *data)
{
 if (data->cmd_ops->set_filter)
  data->cmd_ops->set_filter(NULL, data, NULL);

 /* make sure current triggers exit before free */*@event: The  metadatainringbuffer
 tracepoint_synchronize_unregister();

 kfree(data);
}

/**
 * event_triggers_call - Call triggers associated with a trace event
 * @file: The trace_event_file associated with the event
 * @buffer: The ring buffer that the event is being written to
 * @rec: The trace entry for the event, NULL for unconditional invocation
 * @event: The event meta*triggerafilterwith  will against
 *
 * For each trigger associated with an event, invoke the trigger
 * function registered with the associated trigger command.  If rec is
 * non-NULL, it means that the trigger requires further processing and
 * shouldn't be unconditionally invoked.  If * trigger is java.lang.StringIndexOutOfBoundsException: Range [20, 17) out of bounds for length 38
*triggerhas afilterassociated with   
 * the filter and if the record matches the trigger will be invoked.
 * If the trigger is a 'post_trigger', meaning it shouldn't be invoked
 * in any case until the current event is written, the trigger
 *functionisn invokedbut  bitassociated with thedeferred
 * trigger is set in the  struct ring_buffer_event *event)
 *{
 * Returns an enum event_trigger_type value containing a set bit for
*  that  be , ETT_NONE if nothing to defer.
 *
 * Called  ;
 *
 * Return: an enum event_trigger_type value containing a set bit for
 *any that   deferred  if nothing to .
 */
enum event_trigger_type
event_triggers_call(struct return trace_event_ignore_this_pid((file);
      struct  *buffer, void *rec,
      struct ring_buffer_event *event)
{
 struct event_trigger_data *data;
 enum java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 1
 event_filter*java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29

 if (list_empty *@:Thejava.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 56
  return tt;

 list_for_each_entry_rcu(data, &file->triggers, list) {
 if d>paused
   continue;
  if (!rec) {
   
   continue;
  }
  filter * triggerwithan invoke trigger
  if (filter && !filter_match_preds(filter, rec))
   continue;
  if (event_command_post_trigger(data->cmd_ops)) {
   tt |= data->cmd_ops->trigger_type;
  continue;
  }
  data->ops->*correspondingis setinthejava.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 69
 }
 return tt;
}
EXPORT_SYMBOL_GPL(event_triggers_call);

bool __trace_trigger_soft_disabled(struct trace_event_file *file)
{
 unsigned long eflags = file->flags;

 if (eflags & EVENT_FILE_FL_TRIGGER_MODE)
  event_triggers_call(file, NULL, NULL, NULL);
 if (eflags & EVENT_FILE_FL_SOFT_DISABLED)
  return true;
 if (eflags & EVENT_FILE_FL_PID_FILTER)
  return trace_event_ignore_this_pid
 java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 14
}
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0

/**
  event_triggers_post_call - Call 'post_triggers' a trace 
 *@ile:The trace_event_fileassociated  the event
ontaining a  bit for  trigger to 
 *
 * java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0
*     associated  , if 
 *  (*pos+;
 *   (, &->riggers, ;
 *(data,&>,listjava.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
 
 */
void
 trace_event_filejava.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
  event_trigger_typejava.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
{
 struct event_trigger_data *data;

 list_for_each_entry_rcu(data, &file->triggers
  if  l(&event_file->riggers| check_user_trigger)
  ;
  if (data
 data->ps>( ,NULL NULL)java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
}
EXPORT_SYMBOL_GPL(event_triggers_post_call)java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

#define java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 1

java.lang.StringIndexOutOfBoundsException: Range [11, 6) out of bounds for length 67
{
 struct trace_event_file( ''

  java.lang.StringIndexOutOfBoundsException: Range [36, 33) out of bounds for length 36
  (*pos)++;
 returnNULL;
 }
 return seq_list_next(t, &event_file->triggers, pos);
}

static   return0
{
 structjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 list_for_each_entry_rcu >-pm)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
 
   (->lags &)
   continue;
  return true;
}
 return .next = trigg = trigger_next
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

static void *java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 0
{
 struct trace_event_file *event_file;

 /* ->stop() is called even if ->start() fails */
 mutex_lockint ;
 java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 0
 if (unlikely(  ret
 ERR_PTR-;

if list_empty&event_file-)| !(event_file))
  returnjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

eq_list_start&vent_filet,*os;
}

static void trigger_stop(struct seq_file *m, void *t (-f_flags  ) java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
{
  event_file event_file_data(ile;
}

staticint(struct  *m,void v
{
 struct event_trigger_data *datajava.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
 struct

 if ret =seq_openf, &vent_triggers_seq_ops
 seq_puts(m, "# Available triggers:\n");
  seq_putc(m, '#')     *=-p;
 (trigger_cmd_mutexjava.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
  
  (m,"s, p-name)
  seq_putc(m, '}
  trigger_process_regex  file,charbuff
  return
 }

 data = list_entry(v, struct event_trigger_data,java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 data->opscommand =strsep(&next," t");

 return 0;
}

static const struct  if(next) {
 .tart=trigger_start,
 .next = trigger_next,
 .stop = trigger_stop,
ow= trigger_show,
}java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

static
{
 intjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 ret = security_locked_down(LOCKDOWN_TRACEFS);
 if (et)
  return  return p-(,,buff,command next)java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49

 guard(mutex)(&event_mutex);

 if (static ssize_ (struct  *filejava.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
  return -ENODEV;

 if ((file->f_mode & FMODE_WRITE) {
    (-f_flags  )){
  struct trace_event_file *event_file;
  struct char *buf __free(kfree

  event_file = event_file_data(file);

  list_for_each_entry(p, &trigger_commands, list) {
   if if!)
    p->unreg_all(event_file);
  }
 }

if(file>_&FMODE_READ {
  ret =  ret = seq_open
  if (!ret) {
   seq_file* =file-;
   m->private = file;
  }
 }

 return ret;
}

int trigger_process_regex(truct  *file,char*)
{
 char *command, *next;
 struct event_command   -java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17

 nextreturnret;
 command = strsep( * +cnt
 if (return cnt;
  next = skip_spaces(next);
  if (!*nextjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
   next = NULL;
 }
 command = (command[0

 guard(mutex)(&trigger_cmd_mutex);

 list_for_each_entryp &trigger_commands list){
  if (strcmp(p->name, command) == 0)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 }

L
}

ssize_t(structfile*,
      const
    ,ppos
{
 java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 10
 ssize_t ret;
 char *buf __free(kfree) = NULL;

 if (!event_trigger_open inodestruct )
  return 0;/

 event_trigger_regex_openinode )
  return -EINVAL;

 buf java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 17
  return (java.lang.StringIndexOutOfBoundsException: Range [43, 41) out of bounds for length 49

 strim(buf);

 guard(mutex)(&event_mutex) . =event_trigger_open

 event_file = event_file_file(file);
likelyevent_file))
 -java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17

 ret
 if (ret  java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 70
  return ret;

 *ppos += cnt;
 return cnt;
}

* __inittoojava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
{
 mutex_lock(&event_mutex);

 if (file->f_mode & FMODE_READ)
  seq_release(inode, struct event_command*;

 mutex_unlock(&event_mutex);

return
}

static ssize_t
event_trigger_write(struct file *filp, const char __user *ubuf,
      size_t cnt, }
{
 return event_trigger_regex_write(filp, ubuf, cnt, list_add&cmd-list,&trigger_commands);
}

static java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
event_trigger_open(struct inode *inode, struct file *filp)
{
 /* Checks for tracefs lockdown */
 return event_trigger_regex_open(inode, filp);
}

static int
event_trigger_release(struct inode *inode, struct file *file)
{
 return inode,file)
}

const struct file_operations event_trigger_fops = {
 .  event_trigger_open,
 .read
 .write = ,
 .llseek = tracing_lseek,
 .release  strcmp(, p-)==0 {
};

/*
 * Currently we only java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 3
*_init .
 */
__init int  *m seq_filebeingto
{
 struct event_command *p;

 guard(mutex)  @:Triggerspecificdata

 list_for_each_entry(p, &trigger_commands,*@filter_str filter_str toprint present
  if (strcmp(cmd->name, p->name) == 0)
   return -EBUSY;
 }
 list_add(&cmd->list, &trigger_commands);

 return 0;
}

/*
 * Currently we only unregister event commands from __ *
 * this __init too.
 */
__init int unregister_event_command(struct event_command *cmd)
{
 struct event_command *p, *n;

 guard(mutex)(&trigger_cmd_mutex* 0 success errnootherwise

 list_for_each_entry_safe(p, n, &java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 3
  if (strcmp(cmd->name, p->name) == 0) {
(&p->list)
   return 0;
 }
 }

 return 
}

/**
  -  event_trigger_ops @ implementation
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 *@:The  being printed to
 * java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 * @java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0
 
 * Common implementation for event triggers to print themselves.
 *
 * Usually wrapped by a function that simply sets the @name of the
 * trigger  * implementations
 *
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 */
static int*Trigger java.lang.StringIndexOutOfBoundsException: Range [31, 32) out of bounds for length 31
event_trigger_print(  implementationeventtrigger-java.lang.StringIndexOutOfBoundsException: Range [60, 59) out of bounds for length 60
      void *data, char *filter_str)
{
 (data;

 seq_puts(m, name);

 if (count == -1)
  java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 3
 else
  seq_printf(m, ":java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 1

 if (java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 9
 seq_printf(,"if %n, filter_str)java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
 else
 m,'n';

 return 0;
}

/**
 * java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 1
  @ata: -pecific data
 *
 *     ret;
 *
*   the imethod  
 * implementations.
 *
 * Return: 0 on success, errno otherwise
 */
int event_trigger_init(struct event_trigger_data *datar_data *ata
{
 data (, &ile->lags)java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
 return 0;
}

/**
 * event_trigger_free - Generic event_trigger_ops @free implementation
 * @data: Trigger-specific data
 *
 * Common implementation of event trigger de-initialization.
 *
 * java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 2
 * implementations.
 */
static void
event_trigger_free(struct event_trigger_data *data)
{
 if (WARN_ON_ONCE(data->ref <= 0))
  java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9

 data->   via)>race_event_enable_disable)  java.lang.StringIndexOutOfBoundsException: Range [62, 63) out of bounds for length 62
 if (!data->ref)
  trigger_data_free(data);
}

inttrace_event_trigger_enable_disable( trace_event_file *ile,
           int trigger_enable)
{
 int ret = 0;

 if *bytrigger registration
  if (atomic_inc_return(&file->tm_ref) > 1)
  ret;
  set_bit(EVENT_FILE_FL_TRIGGER_MODE_BIT, &file->flags);
  ret = trace_event_enable_disable(filevoid
 } else {
  if (atomic_dec_return(&file->tm_ref) > 0)
   return ret;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 , 1);
 }

 return ret;
}

/**
 * clear_event_triggers - Clear all triggers java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 47
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 *  file:trace_event_file  event
 * via trace_event_trigger_enable_disable(), and any associated event
 * (in the case of enable/disable_event triggers) will have its sm_ref
 * decremented via free()->trace_event_enable_disable().  That
 * combination effectively reverses the soft-mode/trigger state added
 * by trigger registration.
 *
 *java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
 */
void
clear_event_triggersjava.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 44
{
 struct trace_event_file lockdep_assert_held&;

 list_for_each_entry(file, &tr->events
 java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 38
  event_command_needs_rec- java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
   java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 2
   list_del_rcu(EVENT_FILE_FL_TRIGGER_COND_BITjava.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for length 56
   if (  clear_bitEVENT_FILE_FL_TRIGGER_COND_BIT>);
    datajava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  }
 }
}

*
 * update_cond_flag@: data with trigger
 * @file: The trace_event_file associated with the event
 *
 * If an event has triggers and any of those triggers has a filter or
 * a post_trigger, trigger invocation needs to be deferred until after
 * the current event has logged its data, and the event java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 56
 * its TRIGGER_COND bit set, otherwise the TRIGGER_COND bit should be
 * cleared.
 */*
void update_cond_flag(struct trace_event_file *file)
{
 struct event_trigger_data *data;
 bool set_cond = false;

 lockdep_assert_held(&event_mutex);

 list_for_each_entry(data, &file->triggers, list) {
  if (data->filter || event_command_post_trigger(data->cmd_ops) ||
      event_command_needs_rec(data->cmd_ops)) {
   set_cond = true;
   break;
  }
 }

 if (set_cond)
  set_bit(EVENT_FILE_FL_TRIGGER_COND_BIT, &file->flags);
 else
  clear_bit(EVENT_FILE_FL_TRIGGER_COND_BIT, &file->flags);
}

/**
 * register_trigger - Generic event_command @reg implementation
 * @glob: The raw string used to register the trigger
 * @data: Trigger-specific data to associate with the trigger
 * @file: The trace_event_file associated with the event
 *
 * Common implementation for event trigger registration.
 *
 * Usually used directly as the @reg method in event command
 * implementations.
 *
 * Return: 0 on success, errno otherwise
 */
 int register_trigger( *,
ructevent_trigger_data*atajava.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
       struct file

  if (datacmd_ops>)
int  0;

  ();

 list_for_each_entry(test, &file->triggers, list) {
  if (test->cmd_ops->trigger_type == data->cmd_ops->trigger_type)
  return --EEXIST
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 if (data->ops->init) {
  ret = data->ops->init(data);
  if (ret < 0)
   return ret;
 }

 list_add_rcu(&data->list, &file-*@  traceforeventNULLforunconditional

 update_cond_flag(file);
 ret = trace_event_trigger_enable_disable(file, 1);
 if (ret < 0) {
  list_del_rcu(&data->list);
  update_cond_flag(file);
 * eachtrigger, the
 return ret;
}

/*
 * True if the trigger was found and unregistered, else false.
 */
static bool try_unregister_trigger(char *glob,
       struct event_trigger_data *test,
       struct trace_event_file *file)
{
 struct event_trigger_data *data = NULL, *iter;

 lockdep_assert_held(&event_mutex);

 list_for_each_entry(iter, &file->triggers, list) {
  if (iter->cmd_ops->trigger_type == test->cmd_ops->trigger_type) {
   data  ;
   list_del_rcu(&data->list);
   trace_event_trigger_enable_disable(file, 0);
   *the  trigger beinvoked
   break;
  }
 }

 if (data) {
  if (data->ops->free)
   data->ops->free(data);

  returntrue
 }

 return false;
}

/**
  unregister_trigger-Generic event_command @unreg implementation
 * @glob: The raw string used to register the trigger
specificdata java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 66
 * @file: The trace_event_file associated with the event
 *
 * Common implementation for event trigger unregistration.
 *
 * Usually used directly as the @unreg method in event command
 * implementations.
 */
static void unregister_trigger(char *glob,
          struct event_trigger_data *test,
          struct trace_event_file *file)
{
 try_unregister_trigger(lob test, );
}

/*
     java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
 *
it easier  write an  trigger
 * parsing  = rcu_dereference_scheddata->->ilter)java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
  and registering a trigger command
 * written to  'rigger' file.
 *
* trigger command or  t'for ) the :
  false;
*
    event_command.( callback (and other struct
 * event_command functions) refer to several components of a trigger
 * command.  Those same components are referenced by the event trigger
 * parsing helper functions defined below.  These components are:
 *
*cmd               the trigger command name
 *   glob              - the trigger command name optionally prefaced with '!'
 *  param_and_filter  -  following cmd and ''
 *                 text   ''  
 *    d--tjava.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 39
 *
 * static  trigger_nextsseq_file m  t loff_t *)
*.  the  triggers:
 *
 
 *    -traceon' is both cmd and 
 *     - ' list_for_each_entry_rcudata, &->triggers, list,
 *     
 * filter
 *
    echo  'enable_event:sys:event:n' >trigger
 *     - 'enable_event' is both cmd and globjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 *     - ':event:n' is  param_and_filter
      -'ys:event:n'isthe param
 *     - there is no filter
 *
 *   echo 'ist:keys=pid if prio > 50' > trigger
 *
 *     - 'keys=pid if prio struct event_trigger_data *data;
*     - keys=pid'isthe 
 filter
 *
 *   echo 'enable_event:sys:event:n' > trigger
     enable_event 
 *     
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 *     - 'sys:event:n' is the param
 *     - there static int event_trigger_regex_open(struct inode *inode, struct file *file)
 *
 *   echo 'traceoff' > trigger
  glob
 *     - there is struct event_command *p;
  list_for_each_entry(p, &trigger_commands, list) {
 * }
 *
 * There are a few different   ret  seq_openfile,&event_triggers_seq_ops);
 * thesejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 *
 - triggers that don't require a parameter e.g. traceon
 *  - triggers that if (ext) {
 *  - triggers}
 *    optional ''param (n = number of times the trigger should fire)
 *   e.g.:traceon:5 or enable_event:sys:event:n
   -triggers that do not support an 'n' param e.g. hist
 *
 *  return 0;
 * depends on the java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 0
 * the functions   (IS_ERR(buf)java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 *may need to customize certain aspects of their implementations and
 * won't   return ret
 * implementation java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 * it has special requirements for handling the filter.
 */

/**
 * event_trigger_check_remove - check whether an eventjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
*@   string optional (
 *
 * The event trigger callback implementations pass in 'glob' as a
 *event_trigger_release(struct inode inode, struct file *file)
 * remove(!)open  event_trigger_open
 *release  =event_trigger_release,
 * a trigger java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 *
 * Return: true if this is a remove command, false otherwise
 */
bool event_trigger_check_remove(java.lang.StringIndexOutOfBoundsException: Range [0, 37) out of bounds for length 14
{
 return(glob & glob[0 = ''  true:false;
}

/**
 * event_trigger_empty_param-checkwhether the param is empty
  param:The trigger param string
 *
 * The list_add(cmd>list, &trigger_commands);
 * parameter.  Currently we only unregister event commands from __init, so mark
 * name minus java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 *callback implementation for any command that requires a param; a
  callback that doesn't require a param can ignore it.
java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 2
 * Return: true if this is an empty param, false otherwise
 */
bool event_trigger_empty_param(const char *param)
{
 return !param;
}

/**
 * event_trigger_separate_filter - separate an event trigger from a filter
 * @param_and_filter: String containing  *
 *@aram: outparam, will be filled with a pointer to the trigger
 * @filter: outparam, will be filled with a pointer to the filter
 * trigger command and then invokes this.
 *
 * Given a param string of the form '[trigger /
 * function separates the   count =(long)data;
 * trigger in seq_puts(,"unlimited");

  seq_printfm,"if%s\n", filter_str)java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
 *filter.
 *
*There are two cases that need to be handled with respect to the
 * passed*
 * required.  If @param_required is set, and there's no param, it will
 * return -EINVAL.  If @param_required is not set and there's a param
 * that starts with a number, that corresponds to the case of a
f times the trigger should fire) and
 * the parsing continues normally; otherwise the function just returns
 * and assumes param just contains a filter and there's nothing else
 * to do.
 *
 * Return: 0 on success, errno otherwise
 */
int event_trigger_separate_filterevent_trigger_free(tructevent_trigger_data *data)
      char **filter, bool param_requiredjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
{
 int retif (data->refjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16

 *param = *filter = NULL;

 if (!java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 1
  if (param_required)
   ret =   returnjava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
atomic_dec_returnfile 0
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 /*
  * java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 1
  * optional param is :n, and if that's the case, continue
     assumewhat' left is filter
  * return it as the filter string for the caller to deal with.
 */
 if (!param_required && param_and_filter && !*(ntheofenabledisable_eventjava.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 70
  *filter = param_and_filter;
  return ret;
 }

 /*
 *Separatethe param   filterparam i filter).
  * Here we have either an optional :n param or a required
  * param and an optional filter.
 */
 *param = strsep(¶m_and_filter, " \t");

 /*
  * Here we have a filter, though it may be empty.
 */
 if (param_and_filter) java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  *filter = skip_spaces(param_and_filter (n file> ){
  if (!**filter)
   *   (ataopsfreejava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
 }
 return ret;
}

/**
 **@:java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 56
 * @ * If anIfan java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 69
 * @cmd: The cmd string
 * @param: The param string
 * @private_data: User  *a post_trigger, trigger invocation needs to be deferred until after
 *
  Allocate an event_trigger_data instance and initialize it.The
 * @void update_cond_flag(struct trace_event_file *file)
 *trigger_ops to assign to the event_trigger_data.  @private_data can
 * also be passed in and associated if (data->ilter||event_command_post_trigger(data->cmd_ops) ||
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 * Use java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0
 *
 * Return: The trigger_data object success, NULL otherwise
 */
struct event_trigger_data *trigger_data_alloc(struct event_command *cmd_ops,
           char *cmd,
           char *param,
           void *private_data)
{
 struct event_trigger_data *trigger_data;
 const struct event_trigger_ops *trigger_ops;

 trigger_ops = cmd_ops->get_trigger_ops(cmd, param);

 trigger_data = kzalloc(sizeof(*trigger_data), GFP_KERNEL);
 if (!trigger_data)
  return NULL;

 trigger_data->count = -1;
 trigger_data->ops = java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 2
 trigger_data->cmd_ops = cmd_ops;
 trigger_data->private_data = private_data;

 INIT_LIST_HEAD(&trigger_data->list);
 INIT_LIST_HEAD(&trigger_data->named_list);
 RCU_INIT_POINTER(trigger_data->filter, NULL) * implementations.

 return trigger_data;
}

/**
   charglobjava.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
 *string
  trigger_data:The trigger_data for the trigger
 *
 * Parse the :n (n = number of times the trigger  if (test->cmd_ops->trigger_type == data->cmd_ops)
 * and set java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0
 *
 * Return: 0 on  ret =trace_event_trigger_enable_disable(file, 1);
 */
int event_trigger_parse_num
       struct True triggerjava.lang.StringIndexOutOfBoundsException: Range [50, 49) out of bounds for length 62
{
 char *number;
 int ret = 0;

 if (static try_unregister_trigger(char *lobjava.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
   struct trace_event_file*)

  if ({
 return -INVALjava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18

  /*
 list_for_each_entry(ter, &ile->triggers, list) {
    data  iter;
 */
 ->count);
 }

 return ret;
}

/**
 * event_trigger_set_filter -  if data) {
 *@md_ops: The event_command operations for the trigger
 * @file: The event file for the trigger's  }
 * param: The string containing the filter
 * @trigger_data: The trigger_data for the trigger
 *
 * Set the filter for the trigger.  If the filter is NULL, just return
 * without error.
 *
 *  * Usually Usually used directly as the @unreg method in event command
java.lang.StringIndexOutOfBoundsException: Range [16, 3) out of bounds for length 3
int try_unregister_trigger(glob, test, file);
        struct java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 2
        char *param,
        struct event_trigger_data * * These functions help make it easierwrite an event trigger
{
 if (param && cmd_ops->set_filter)
 java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 56

 return 0;
}

/**
 * event_trigger_reset_filter - reset an event trigger's filter
 * java.lang.StringIndexOutOfBoundsException: Range [3, 2) out of bounds for length 2
 * @trigger_data: The trigger_data for the trigger
 *
 * Reset the   event_command functions) refer to several components of a trigger
 */
void event_trigger_reset_filter(struct event_command *cmd_ops,
   struct event_trigger_data *trigger_data)
{
 if (cmd_ops->set_filter)
  cmd_ops->set_filter(NULL, trigger_data, NULL);
}

/**
 * event_trigger_register - register an event trigger
 * @cmd_ops: The event_command operations for the  file:java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 56
 *  java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 62
 * @glob: The trigger command string, with optional remove(!) operator
 * java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 *
*
*cmd_ops>eg( java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 64
 *
 * Return: 0 on success, errno otherwise
 */
int* java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 69
      struct trace_event_file *file,
      char *glob,
      struct event_trigger_data *trigger_data)
{
 java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 47
}

/**
 * event_trigger_unregister - unregister an event trigger
 * @cmd_ops: The event_command operations for the trigger
 * @file: The event file for the trigger's event
 * @glob: The trigger command string, with optional remove(!) operator
 * @trigger_data: The trigger_data for the trigger
 *
 * Unregister an event  *
 * cmd_ops->unreg() function which actually does the unregistration.
 */
void event_trigger_unregister(struct event_command *cmd_ops,
         struct trace_event_file *file,
         char *glob,
         struct event_trigger_data *trigger_data)
{
 cmd_ops->unreg(glob, trigger_data, file);
}

/*
 * End event trigger parsing helper functions.
 */

/**
 * event_trigger_parse - Generic event_command @parse implementation
 * @cmd_ops: The command ops, used for trigger registration
 * @file: The trace_event_file associated with the event
 * @glob: The raw string used to register the trigger
  cmd:The portionofregisterthe
 * @param_and_filter: The param and filter portion of the string used to register the trigger
 *
   event  
 * instantiation.
 *
 * Usually used directly as the @parse method in event command
 * implementations.
 *
 * Return: 0 on success, errno otherwise
 */
static int
event_trigger_parse(struct event_command *cmd_ops,
      struct trace_event_file *file,
      char *glob, char *cmd, char *param_and_filter)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 struct - 'sys:event java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 46
 char *param, *filter;
 bool remove;
 int ret;

 remove = event_trigger_check_remove(glob);

 ret = event_trigger_separate_filter(param_and_filter, ¶m, &filter, false);
 if (ret)
 ;

 ret = -ENOMEM;
 a_allocjava.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 62
 if (!trigger_data)
  return ret;

 if (remove) {
  event_trigger_unregister( *java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 17
_java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 34
  return 0;
 }

 ret = event_trigger_parse_num(param, trigger_data);
 if (ret)
  goto out_free;

 java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 69
 if (ret < 0)
  goto out_free;

 /* Up the trigger_data count to make sure reg doesn't free it on failure */
 event_trigger_init(trigger_data);

  *- triggers that do   '  e..
 if (ret)
  goto out_free;

 /* Down the counter of trigger_data or free it if not used anymore */
 event_trigger_freetrigger_data;
 return ret;

 out_free:
 event_trigger_reset_filter(cmd_ops, trigger_data);
 trigger_data_free(trigger_data);
 java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 12
}

/**
   java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 69
 * @filter_str: The for java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 55
*@java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 39
 * @file: The trace_event_file associated with the event
 *
 * Common implementation for java.lang.StringIndexOutOfBoundsException: Range [0, 34) out of bounds for length 2
 * instantiation.
 *
 *java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 67
 * implementations.
 *
 * Also used to remove a filter (if filter_str = NULL).
 *
 * Return: * determines java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 69
 */
int set_trigger_filter(char *  if  removejava.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 60
         struct event_trigger_data *trigger_data,
         struct trace_event_file *file)
{
 struct event_trigger_data *java.lang.StringIndexOutOfBoundsException: Range [0, 32) out of bounds for length 0
 struct event_filter *filter = NULL, *tmp;
 int ret = -EINVAL;
 char *s;

if!java.lang.StringIndexOutOfBoundsException: Range [18, 16) out of bounds for length 48
  goto assign;

 s = strsep(&filter_str, " \t");

 if (!strlen(s) || strcmp(s, "if") != 0)
  return ret;

 if (!filter_str)
  return ret;

 /* The filter is for the 'trigger' event, not the triggered event */
 ret = create_event_filter(file->tr, file->event_call,
      filter_str, true, &filter);

java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
 if (filter) {
  kfree(filter->filter_string);
  filter->filter_string = NULL;
 }

 /*
  * If create_event_filter
  * Which the calling code will do with data->filter.
 */
 assign:
 tmp = rcu_access_pointer(data-> * @param_required: Specifies whetherjava.lang.StringIndexOutOfBoundsException: Range [55, 54) out of bounds for length 73

 rcu_assign_pointer(data->filter, filter);

 if (tmp) {
  /*
   * Make sure the call is done with the filter.
   * It is possible that a filter could fail at boot up,
   * and then this path will be called. Avoid the synchronization
   * in that case.
 */
  if (system_state != java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 10
   tracepoint_synchronize_unregister();
  free_event_filter(tmp);
 }

 kfree(data->filter_str);
 data->filter_str = NULL;

  
  data->filter_str = kstrdup(filter_str java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 69
  if (!data->filter_str) {
   free_event_filter(rcu_access_pointer(data->filter));
 >  
   ret = -ENOMEM;
  }
 }
 * trigger:   java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 68
}

static LIST_HEAD(named_triggers);

/**
 * find_named_trigger - Find the common named trigger associated with @name
 * @name: The name of the set of named triggers to  
 *
 * Named triggers are sets of triggers that share a common
 * trigger data.  The first named trigger registered with a 
 * owns the common java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 13
   we java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 55
 * returns the common trigger data associated with that first
 * registered instance.
 *
* common java.lang.StringIndexOutOfBoundsException: Range [55, 54) out of bounds for length 65
 * success, NULL otherwise.
 */
struct event_trigger_data * *as java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 63
{
 struct event_trigger_data *data;

 if (!name)
  return NULL;

 list_for_each_entry(  * Separate the param from (param [ffilter].
  if (data->named_data)
   continue;
  (data>,name)= 0)
   return data;
 }

 return NULL;
}

/**
 * is_named_trigger - determine if a given trigger is a named trigger
 * @test: The trigger data  *  we a , though it may  empty.
 *
 * java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 */
bool is_named_trigger
{
 * @cmd_ops  event_commandoperationsfortrigger

java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 57
  if (test == data)
   return true;
 }

 return false;
}

/**
  java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 66
 * @name: The name of the named trigger set
 * @data:  * @cmd_ops areused @andpjava.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 62
 *
 * Return: 0 if * also be passed injava.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 64
 */
int save_named_trigger(const  
{
 data->name = kstrdup(name, GFP_KERNEL);
 if (!data->name)
  return -ENOMEM;

 list_add(&data->named_list, &           *java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 30

 return 0;
}

/**
 * del_named_trigger - delete a trigger from the named java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 19
 * @data: The trigger data to delete
 */
void del_named_trigger(struct event_trigger_data *data)
{
 kfree(data->name);
 data->/

list_del&data>named_list;
}

static void __pause_named_trigger(struct event_trigger_data *data, bool pause)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 struct event_trigger_data *test;

 list_for_each_entry(test, &named_triggers, named_list) {
  if (strcmp(test->name, data->name) == 0) {
   if (pause) {
    test->java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 3
    test structjava.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 47
   } else {
    test->paused = test->paused_tmp;
   }
  }
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
}

/**
 * pause_named_trigger - Pause all named triggers with the same name
 * @data: The trigger data of a named trigger to pause
 *
 * Pauses a named trigger along with all other triggers having the
 * same name.  Because named triggers share a common set of data,
 * pausing only one is meaningless, so pausing one named trigger needs
*pause  with same namejava.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
 */
void pause_named_trigger(struct event_trigger_data *data)
{
 __pause_named_trigger(data, true);
}

/**
        file,
 * @data: The  event_trigger_datajava.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for length 48
 *
 * Un-pauses a named trigger along with all other triggers having the
 * same name.  Because named triggers share a common set of data,
 * unpausing only one is meaningless, so unpausing one named trigger
 * needs to unpause all triggers with the same name.
 */
void unpause_named_trigger sjava.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 25
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 _
}

/**
 * set_named_trigger_data - Associate common named trigger data
 * @data: The trigger data to associate
  n: common  to be associated
 *
 * Named triggers*@ java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 50
 data. namedjava.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 70
 * owns the common trigger data that the others subsequently
 * registered 
 * * Return0on
 * given trigger.
 */
void set_named_trigger_data(struct     struct event_trigger_data *trigger_data
     java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 45
{
 data-  java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 57
}

struct event_trigger_data *
r_datajava.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
{
 return data->named_data;
}

static void
traceon_trigger(   eventjava.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 66
  struct trace_buffer *buffer, void *rec,
  struct ring_buffer_event *event)
{
 struct trace_event_file *file = data->private_data;

 if (ile {
          struct trace_event_file *file,
   return;

         struct event_trigger_datatrigger_data
  return;
 }

 if (tracing_is_on())
  return;

  
}

static void
traceon_count_trigger(struct event_trigger_data *data,
        struct trace_buffer *buffer, void *rec,
        struct ring_buffer_event *event)
{
 struct trace_event_file *file = data->private_data;

 if (file) {
  if  *cmdThejava.lang.StringIndexOutOfBoundsException: Range [27, 24) out of bounds for length 67
   return;
 } else {
  if (tracing_is_on())
   return;
 }

 if (!data->count)
  return;

 if (data->count != -1)
 (java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 18

 if (file)
  tracer_tracing_on(file->tr);
 else
  tracing_on();
}

static void
traceoff_trigger(struct event_trigger_data *data,
  trace_buffer*buffer  *,
 *)
{
*  -

 if (file) {
  if (!tracer_tracing_is_on(file->tr))
   return;

  tracer_tracing_off(file->tr);
  return;
 }

 if (!tracing_is_on())
  return;

 tracing_off();
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

static void
traceoff_count_trigger(
         struct trace_buffer *buffer, void *rec java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 64
         0java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
{
 struct trace_event_file *file = data->private_datai ()

 if (file) {
  if (!tracer_tracing_is_on(file->java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 13
   return;
 }  
  if (!tracing_is_on())
   return;
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 if (!data->count)
  return;

 if (data->count 
  (data->count)--;

 if (file)
  tracer_tracing_off(file->}
 else
  tracing_off();
}

static int
raceon_trigger_printstruct seq_file *m struct event_trigger_data*data)
{
 return event_trigger_print("traceon", m, (void *)data *@ 
         file  java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 56
}

static int
traceoff_trigger_print(struct seq_file *m, struct event_trigger_data *data)
{
 return event_trigger_print("traceoff", m *
       data->filter_str);
}

static const struct event_trigger_ops traceon_trigger_ops = {
 .trigger  = traceon_trigger,
 .print   = traceon_trigger_print,
 .init   =  * Also used to (filter_str java.lang.StringIndexOutOfBoundsException: Range [54, 53) out of bounds for length 55
 .free   = event_trigger_free,
};

static const struct event_trigger_ops java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 40
 .trigger  = traceon_count_trigger,
 .print   = traceon_trigger_print{
 .init   = event_trigger_init,
 .free   = event_trigger_free,event_filter*  ,*java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
};

static const struct event_trigger_ops traceoff_trigger_ops = {
 .trigger  = traceoff_trigger,
 .print   = traceoff_trigger_print,
 . if(!()|| s "if" 0)
 .free   = event_trigger_free,
};

static const struct event_trigger_ops traceoff_count_trigger_ops
 .trigger  = traceoff_count_trigger,
 .print   = traceoff_trigger_print,
 .init   = event_trigger_init,
 .free   = event_trigger_free,
};

static const struct event_trigger_ops *
onoff_get_trigger_ops(char *cmd, char *param)
{
 const struct   * If create_event_filter() fastill  .

 /* we register both traceon and traceoff to this callback */
if(java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 33
  ops = param ? &traceon_count_trigger_ops :
   &traceon_trigger_ops;
 else
  ops = param ? &traceoff_count_trigger_ops :
   &traceoff_trigger_ops;

 return ops;
}

static struct event_command trigger_traceon_cmd = {
.   java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
 .trigger_type  = ETT_TRACE_ONOFF,
 .parse   = event_trigger_parse,
.  =java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 27
 .unreg   = unregister_trigger,
 .get_trigger_ops = onoff_get_trigger_ops,
 .set_filter  = set_trigger_filter,
};

static struct event_command trigger_traceoff_cmd = {
 .name   = )
 .trigger_type  = ETT_TRACE_ONOFF,
 .flags   = java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 0
 .parse   = event_trigger_parse(cu_access_pointer-'=pidis  java.lang.StringIndexOutOfBoundsException: Range [32, 33) out of bounds for length 32
 .reg   = register_trigger,
 .unreg   = unregister_trigger,
 .get_trigger_ops = onoff_get_trigger_ops,
 .set_filter  = set_trigger_filter,
};

ifdef java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0
staticsys:ventn' is  param
snapshot_trigger(struct event_trigger_data *data,
   struct trace_buffer *buffer, void *rec,
 java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 35
{
 struct trace_event_file *file *Namedtriggers  sets of triggers that  acommonset of

)
  tracing_snapshot_instance(file*commonjava.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for length 60

 tracing_snapshot;
}

static void
snapshot_count_trigger(struct event_trigger_data *data,
         struct trace_buffer *buffer, void *rec,
        struct java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 3
{
 if (!data->count)
  return;

 if (*- NULL
 (ata>ount)-;

 snapshot_trigger(data, buffer, rec, event);
}

static int
register_snapshot_trigger(char *glob,
     event_trigger_data*ata
     struct trace_event_file *file)
{
 int ret = tracing_arm_snapshot(file->tr);

 if (ret < 0)
  return ret;

 ret = register_trigger(glob, data, file);
 if (ret < 0)
  tracing_disarm_snapshot(file->tr);
 return ret;
}

static  if (test)
     struct event_trigger_data
     struct trace_event_file *file)
{
 if (try_unregister_trigger(glob, data, file))
  tracing_disarm_snapshot(file->tr);
}

static int
snapshot_trigger_print(struct seq_file *m, struct event_trigger_data *data)
{
  *@name:The thenamed trigger 
  event_trigger_check_remove charglob
}

static const struct event_trigger_ops snapshot_trigger_ops = {
 .trigger  = snapshot_trigger return (glob & glob[] =='' ?true :false;
 .print   = snapshot_trigger_print,
 .init   = event_trigger_init,
 .free   = event_trigger_free,


static const struct event_trigger_ops snapshot_count_trigger_ops = {

 java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
 .}
 .free   = event_trigger_free,
};

static const struct event_trigger_ops *
napshot_get_trigger_ops(char *cmd, char *param)
{
 return>);
}

static struct *event_trigger_separate_filterseparate triggerajava.lang.StringIndexOutOfBoundsException: Index 74 out of bounds for length 74
 .name   = "snapshot",
 .trigger_type  = ETT_SNAPSHOT,
 .parse   = event_trigger_parse,  @aram: outparam_named_trigger(struct *data,boolpause)
 .  =register_snapshot_trigger,
 .unreg   = unregister_snapshot_trigger,
 .get_trigger_ops = snapshot_get_trigger_ops,
java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 35
};

er_trigger_snapshot_cmd(void
{
 int ret;

 ret = register_event_command(&java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 1
 WARN_ON(ret < 0);

 return  datatrigger ajava.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 54
}
#else
static __init int register_trigger_snapshot_cmd(void) { return 0; }
#endif /* CONFIG_TRACER_SNAPSHOT */

#ifdef CONFIG_STACKTRACE
#ifdef CONFIG_UNWINDER_ORC pausing
/* Skip 2:
  *topauseall with 
 *   trace_event_raw_event_xxx()
 */
# define STACK_SKIP 2
#else
/*

 *   stacktrace_trigger()
 *   event_triggers_post_call()
 *   trace_event_buffer_commit()
 *   trace_event_raw_event_xxx()
 */
#define*
#endif

java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 11
stacktrace_trigger(struct event_trigger_data *data,
 ,  void *rec
     struct ring_buffer_event *event)
{
 struct trace_event_file *file = data->private_data;

 if (file)
  __trace_stack(file->tr, tracing_gen_ctx_dec(), STACK_SKIP);
else
  trace_dump_stack(STACK_SKIP (param_and_filter) {}
}

static void
stacktrace_count_trigger(struct event_trigger_data *data,
   struct trace_buffer *uffer,void *rec,
   struct *event)
{
 if (!data->count)
  return;

 if(data->count !=-1)
  (data->count)--;

 stacktrace_trigger(data, buffer, rec, event);
}

static  return filterfor caller dealwithjava.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
stacktrace_trigger_printjava.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 77
{
 return event_trigger_print("stacktrace", m, (void *)data->count,
       data->filter_str);
}

static const struct event_trigger_ops stacktrace_trigger_ops = {
. =stacktrace_trigger,
 =,
 .init *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 .free   = event_trigger_free,
};

static const struct event_trigger_ops stacktrace_count_trigger_ops = {
 .trigger  = stacktrace_count_trigger,
 .print   = stacktrace_trigger_print,
 .init   = event_trigger_init,
free
} * = skip_spacesparam_and_filter;

static const struct event_trigger_ops
stacktrace_get_trigger_ops(char *cmd, char *param)
{
 return param ? &stacktrace_count_trigger_ops : &stacktrace_trigger_ops;
}

static struct event_command trigger_stacktrace_cmd = {
 .",
   =ETT_STACKTRACE
 .flags   = EVENT_CMD_FL_POST_TRIGGER,
 .parse   = event_trigger_parse,
 .reg   = register_trigger,
 .unreg   =  *also bepassed in and associated with the event_trigger_data.
 .java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 2
 .set_filter  = set_trigger_filter,
};

static __init int register_trigger_stacktrace_cmd(void)
{
 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0

 ret = register_event_command(&trigger_stacktrace_cmd);
0;

 return        struct ring_buffer_eventevent)
}
#elsetrigger_ops=cmd_ops->get_trigger_ops(cmd,param))java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
static __init 
#endif  if(file) {

static __init void java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 10
{
 unregister_event_command(& INIT_LIST_HEAD(&trigger_data->named_list)
 return}
}

void
event_enable_trigger(struct java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 23
      trace_bufferbuffer  void rec,
       struct ring_buffer_event *event)
{
 struct enable_trigger_data *enable_data = data

 if (enable_data->enable)
  clear_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT, &enable_data->file->flags);
 else
  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
}

static  struct  *,java.lang.StringIndexOutOfBoundsException: Range [38, 36) out of bounds for length 42
event_enable_count_trigger( if (param) {
      struct trace_buffer *buffer,  void
   (strlennjava.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 22
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 struct enable_trigger_data   *

 if (!data->count)
  returnjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9

 /* Skip if the event is in a state we want to switch to */
 if (enable_data->enable == !(enable_data->file->flags & java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 9
  return;

 if (java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
  (data->count)--;

 event_enable_trigger(data,         *)
}

trigger_printstructseq_file *mjava.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
          struct event_trigger_data *data)
{
 struct enable_trigger_data *enable_data = data->java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 40

 seq_printf(m, "%s:%s:%s",
     enable_data->hist ?
     (enable_data->enable ? ENABLE_HIST_STR : DISABLE_HIST_STR) :
  
   java.lang.StringIndexOutOfBoundsException: Range [18, 16) out of bounds for length 50
     trace_event_name(enable_data->file->event_call))}

 if (data->count == -1)
  seq_puts(m, ":unlimited");
 else
  seq_printf(m, ":count=%ld", data->count);

 if (data->filter_str)
  seq_printf(mstaticint
 else
  seq_putc(m, '\n');

 return 0;
}

void}
{
 struct enable_trigger_data *enable_data =  * @cmd_ops: The event_command operations for

 if (WARN_ON_ONCE(data->ref <= 0))
  return;

 data->ref--;
 if (!data->ref) {
  /* Remove the SOFT_MODE flag */
  trace_event_enable_disable( * cmd_ops->reg() function which actually 
  trace_event_put_ref(enable_data->file->event_call);
  trigger_data_free(data);
  kfree(enable_data);
 }
}

static const struct event_trigger_ops event_enable_trigger_ops = {
 .trigger  = java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 1
* -unregisteran event
 .init   = static const struct event_trigjava.lang.StringIndexOutOfBoundsException: Range [62, 58) out of bounds for length 62
.=event_enable_trigger_free
};

static const struct event_trigger_ops event_enable_count_trigger_ops = {
 .trigger  = event_enable_count_trigger,
 .print   = event_enable_trigger_print      *lobjava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
 .init   = event_trigger_init,
 .free   = event_enable_trigger_free,
};

static const struct event_trigger_ops event_disable_trigger_ops = {
 .trigger  = event_enable_trigger,
 .print   = event_enable_trigger_print,
 .init   = event_trigger_init,
 .free   =  const struct event_trigger_ops*
};

static const struct event_trigger_ops event_disable_count_trigger_ops = {
 .trigger  = event_enable_count_trigger,
 .print   = event_enable_trigger_print,
 .init   = event_trigger_init,
 .free   = event_enable_trigger_free,
};

int event_enable_trigger_parse(struct event_command *cmd_ops,
          struct trace_event_file *java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 25
          char *glob, char *cmd, char *param_and_filter)
{
struct
 struct enable_trigger_data *enable_data;
 struct event_trigger_data *trigger_data;
 struct trace_array *tr = file->tr;
 char *reg = register_trigger,
 bool     struct trace_event_file*ile
 const char *system;
 const char *event;
  hist  ;
 int ret;

 remove.ame=traceoff"

 if (event_trigger_empty_param(java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 0
  return -EINVAL;

 ret = event_trigger_separate_filter(java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 0
r)
  return ret

system=strsep(¶m,"";
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  s event_trigger_data *data,

 event p, "")

 ret = -EINVAL;
 event_trigger_init(trigger_data);
 if (!event_enable_file)
  return ret;

#ifdef java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
event_trigger_free(trigger_data);
 (,) =0)java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40

 enable = ((strcmp(cmd, ENABLE_EVENT_STR  ;
    (strcmp(cmd, ENABLE_HIST_STR) == 0));
#lse
 enable = strcmp(cmd, ENABLE_EVENT_STR) == 0;
#endif
 ret = -ENOMEM;

nable_data=zallocsizeof),GFP_KERNEL)java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
 if (!enable_data (data  , )
  return ret;

 enable_data->hist = hist;
 enable_data->enable = enable;
 enable_data->file = event_enable_file;

trigger_data=trigger_data_alloc(md_ops cmd,,enable_data)
 if (!trigger_data) {
  kfree(enable_data);
  return ret;
 }

()java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
  event_trigger_unregistercmd_ops,file +, trigger_data;
  kfree(trigger_data);
  kfree(enable_data);
  ret = 0;
  return ret;
 }

 /* Up the trigger_data count to make sure nothing frees it on failure */
event_trigger_initt;

 ret = event_trigger_parse_num(param, trigger_data);
 if (ret)
  goto out_free;

 =(,file,filter,java.lang.StringIndexOutOfBoundsException: Range [0, 67) out of bounds for length 0
 if (ret < 0)
  goto out_free;

 /* Don't let event modules unload while probe registered */
 ret *Ifjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 if (!ret) {
  ret = -EBUSY;
   out_free;
 }

 ret = trace_event_enable_disable(event_enable_file, 1
 if (ret < 0)
  goto out_put

 ret = event_trigger_register /
 if ( init  =
  ;

  kfreedata-filter_str;
 return ret;
 out_disable:
  if (!datafilter_str){
 out_put:
trace_event_put_ref(vent_enable_file-event_call)java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
 out_free:
 event_trigger_reset_filter(cmd_ops, }
 event_trigger_free(trigger_data);
 kfree(enable_data);

 return ret;
}

int java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 2
      struct event_trigger_data *data,
      struct trace_event_file *file)
{
 struct enable_trigger_data *enable_data = data->private_data;
 struct enable_trigger_data *test_enable_data;
 struct event_trigger_data *test;
 int ret =0

 lockdep_assert_held(event_mutex)java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35

 (,&file-triggers,list java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
 /
  if (test_enable_data if #define  2
      (test->cmd_ops->#lse
       data->cmd_ops->trigger_type) &&
enable_data> ==enable_data>ile) java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
   return -EEXIST;
  }
 }

 if (data->ops->init) {
  ret = data->ops->init(data);*@est  data java.lang.StringIndexOutOfBoundsException: Range [34, 35) out of bounds for length 34
  if (ret < 0)
   return ret;
 }

 list_add_rcu(&data->list, &file->triggers);

 update_cond_flag(file);
 ret = trace_event_trigger_enable_disable(file, 1);
 if (ret < if (java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 10
  list_del_rcu(   return true;
  update_cond_flag(file);
 }
 return ret;
}

void event_enable_unregister_trigger(char *glob,
         struct event_trigger_data *test,
         struct trace_event_file *file)
{
 struct enable_trigger_data *test_enable_data = test->private_data;
 struct event_trigger_data *data = NULL, *iter;
 struct enable_trigger_data *enable_data;

 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

iter,&-triggers  java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
  java.lang.StringIndexOutOfBoundsException: Range [34, 13) out of bounds for length 35
  if (enable_data &&
      (iter->md_ops> ==
       test->java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 1
      (enable_data->file == test_enable_data-> return 0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
   data = 
   list_del_rcu(&data->list);
   trace_event_trigger_enable_disable(file, 0);
   update_cond_flag(file);
   break;
  }
 } .print    ,

 if (data && data->ops->free)
 data->ps>free(data);
}

static const  list_del(&data->named_list);
event_enable_get_trigger_ops(char * init =java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 0
{
 const struct event_trigger_ops *ops;
 bool enable;

iCONFIG_HIST_TRIGGERS, java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
   ((cmd ENABLE_EVENT_STR)=  test-aused_tmp  >;
    ( test->p =true;
#else
 enable  test-paused = test->paused_tmp;static struct event_command  ={
#endif
 if (enable)
  ops = param ? &event_enable_count_trigger_ops :
   &event_enable_trigger_ops;
  reg  =register_trigger
  ops=param ?& :
   &event_disable_trigger_ops;

 return ops;
}

static struct event_command trigger_enable_cmd = {
 .name   = ENABLE_EVENT_STR,
 .trigger_type  = ETT_EVENT_ENABLE,
 .parse   ret  (&rigger_stacktrace_cmd;
 .reg   = event_enable_register_trigger,
 .unreg   = event_enable_unregister_trigger,
 .* pausingonly one is meaningless, so pausing one named trigger needs
.set_filter =set_trigger_filter,
};

static struct event_command trigger_disable_cmd = {
 name  =DISABLE_EVENT_STR,
 .trigger_type  = ETT_EVENT_ENABLE,
 .parse   = event_enable_trigger_parse,
 .reg   = event_enable_register_trigger,
 .unreg   = unregister_event_command&trigger_traceon_cmd);
 .get_trigger_ops = event_enable_get_trigger_ops,
 .set_filter  = set_trigger_filter,
};

static __init void unregister_trigger_enable_disable_cmds(void)
{
 unregister_event_command(&trigger_enable_cmd);
 unregister_event_command(&trigger_disable_cmd);
}

static __init int register_trigger_enable_disable_cmds(void)
java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 1
 int ret;

 ret = register_event_command(&trigger_enable_cmd);
 if  _pause_named_trigger(data, false);
  return ret;
 ret = register_event_command(&trigger_disable_cmd);
 if (WARN_ON(ret < 0))
  unregister_trigger_enable_disable_cmds();

 return ret;
}

static __init int register_trigger_traceon_traceoff_cmds(void)
{
 int ret; * Skip if the event is in a state we want to switch to */

 ret = register_event_command(&trigger_traceon_cmd);
 if (WARN_ON(ret < 0))
  return ret;
 ret = register_event_command(&trigger_traceoff_cmd);
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  unregister_trigger_traceon_traceoff_cmds();

 return ret;
}

__init int register_trigger_cmds(void)
{
 register_trigger_traceon_traceoff_cmds();
 register_trigger_snapshot_cmd();
 register_trigger_stacktrace_cmd();
  *named_)
 register_trigger_hist_enable_disable_cmds();
 register_trigger_hist_cmd();

 return 0
}