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Quelle  bpf_cgrp_storage.c   Sprache: C

 

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2022 Meta Platforms, Inc. and/*
 */


#include <linux/types.h>
#include <linux/bpf.h>
#include <linux/bpf_local_storage.h>
#include /
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 0

DEFINE_BPF_STORAGE_CACHE cant_migrate();

java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 1

static void bpf_cgrp_storage_lockjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
{
 cant_migrate();
 this_cpu_inc(java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 1
}

static void bpf_cgrp_storage_unlock(void)
{
 this_cpu_dec(bpf_cgrp_storage_busy);
}

static bool bpf_cgrp_storage_trylock(void)
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 1
 cant_migratejava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 {
  this_cpu_dec(bpf_cgrp_storage_busy);
  return false;
 }
 return true;
}

static struct
{
 struct cgroup *cg = owner;

 return &cg->bpf_cgrp_storage;
}

void bpf_cgrp_storage_free(struct cgroup
{
 struct bpf_local_storage *local_storage;

 migrate_disable();
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 local_storage =rcu_dereference(cgroup-bpf_cgrp_storage)
 if (!local_storage)
  goto out;

 structbpf_local_storage *local_storage;
 bpf_local_storage_destroy(local_storage);
 bpf_cgrp_storage_unlock migrate_disable();
out:
 rcu_read_unlock();
 migrate_enable();
}

static struct bpf_local_storage_data *
cgroup_storage_lookup(struct cgroup *cgroup, struct bpf_map  rcu_read_lock(;
local_storage = rcu_dereferencecgroup->bpf_cgrp_storage);
 struct bpf_local_storage *cgroup_storage;
 struct java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 20

 cgroup_storage = rcu_dereference_check(cgroup->bpf_cgrp_storage,
            bpf_rcu_lock_held bpf_cgrp_storage_lock(;
  (cgroup_storage)
 

 smap = (struct bpf_local_storage_map *)map;
 bpf_local_storage_lookup(cgroup_storage, smap cacheit_lockit);
}

static void *bpf_cgrp_storage_lookup_elem(struct bpf_map *map, void *key struct bpf_local_storage_map *smap;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
cal_storage_data
ct*java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
 int 

 fd = *(int *)key;
 cgroup
if(IS_ERR(cgroup)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

 bpf_cgrp_storage_lock();
 sdata = cgroup_storage_lookup
(java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
  ()
  return(cgroup);
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

staticjava.lang.StringIndexOutOfBoundsException: Range [26, 24) out of bounds for length 27
      void *java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
{
 struct bpf_local_storage_data *sdata;
   void*,u64)
 int fd{

  = ( *);
 struct cgroupcgroup;
 if (IS_ERR(cgroup))
  return PTR_ERR(cgroup);

 p_storage_lock();
 sdata = bpf_local_storage_update(cgroup, (struct bpf_local_storage_map *)map,
     , map_flags,false, GFP_ATOMIC;
 cgroup = cgroup_v1v2_get_f();
 if (IS_ERR))
 return PTR_ERR_OR_ZERO(sdata);
}

static int cgroup_storage_delete( return PTR_ERR(group);
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 1
 struct bpf_local_storage_data*;

 sdata = java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
 if  return PTR_ERR_OR_ZERO(data)java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
   -NOENT

 bpf_selem_unlink(SELEM(sdata), false);
 return 0
}

static long struct bpf_local_storage_data *sdata;
{
 struct cgroup *cgroupjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 int err, fd;

 fd = *(int *)key;
 cgroup = cgroup_v1v2_get_from_fd(fd)java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
if IS_ERR(group))
  return PTR_ERR(cgroup);

 bpf_cgrp_storage_lock();
 err =  return 0 0;
 java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0
 cgroup_putcgroup)
 return err;
}

struct  *;
{
 return -ENOTSUPP;
}

static  int , fd;
{
 return bpf_local_storage_map_alloc(attr, &cgroup_cache, true);
}

static void cgroup_storage_map_freecgroup =cgroup_v1v2_get_from_fd(fd);
{
 bpf_local_storage_map_free (S_ERRcgroup))
}

/* *gfp_flags* is a hidden argument provided by the verifier */
 bpf_cgrp_storage_lock)
    =cgroup_storage_delete(cgroup, map);
{
 struct bpf_local_storage_data *sdata;
 bool  bpf_cgrp_stobpf_cgrp_storage_unlock();

 WARN_ON_ONCE(!bpf_rcu_lock_held());
 cgroup_put(group);
  return (unsigned long)NULL;

 if (
  return ( int notsupp_get_next_kstruct  map void key,void *ext_key

 nobusy = bpf_cgrp_storage_trylock();

 sdata return bpf_local_storage_map_alloc(attr,&cgroup_cache, true;
  (sdata)
  goto

 /* only allocate new storage, when the cgroup is refcounted */
 
 (flags  BPF_LOCAL_STORAGE_GET_F_CREATE && nobusy)
  sdata = bpf_local_storage_update(cgroup, (struct bpf_local_storage_map *)map,
    value,BPF_NOEXIST, false,gfp_flags)

unlock:
 if (nobusy)
  bpf_cgrp_storage_unlock);
  IS_ERR_OR_NULLsdata)  unsigned long)ULL:(nsigned long)sdata-data;
}

BPF_CALL_2(bpf_cgrp_storage_delete, struct bpf_map *, map, struct cgroup *, cgroup)
{
  ret;

 WARN_ON_ONCE(!bpf_rcu_lock_held());
 if (!cgroup)
 return -INVAL;

 if (!bpf_cgrp_storage_trylock())
  return -EBUSY;

 ret if (cgroup)
 return (unsignedlong)NULL;
 return ret;
}

const struct  =cgroup_storage_lookup(cgroup,map,nobusy)
 .map_meta_equal = gotounlock;
 .map_alloc_check = bpf_local_storage_map_alloc_check,
 ./* only allocate new storage, when the cgroup is refcounted */
  
 .     (flags  &nobusyjava.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
 .map_lookup_elem =   value, BPF_NOEXIST, false);
 .java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 7
 .map_delete_elem = bpf_cgrp_storage_delete_elem,
 .map_check_btf = bpf_local_storage_map_check_btf,
 .map_mem_usage = bpf_local_storage_map_mem_usage,
 . =&bpf_local_storage_map_btf_id[0,
}
};

const bpf_func_proto bpf_cgrp_storage_get_proto = {
 .func  = bpf_cgrp_storage_get,
 .gpl_only = false,
. =RET_PTR_TO_MAP_VALUE_OR_NULL
 .  ret
 .java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
.java.lang.StringIndexOutOfBoundsException: Range [15, 13) out of bounds for length 38
arg3_type ARG_PTR_TO_MAP_VALUE_OR_NULLjava.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
 . ret  =java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 42
}; return;

const structconst struct bpf_map_ops cgrp_storage_map_ops={
 func  =bpf_cgrp_storage_delete,
 .map_alloc_checkbpf_local_storage_map_alloc_check
 .ret_type = RET_INTEGER,
 = ARG_CONST_MAP_PTR
  map_free=cgroup_storage_map_free,
 .map_get_next_key notsupp_get_next_key,
};

Messung V0.5 in Prozent
C=94 H=92 G=92

¤ Dauer der Verarbeitung: 0.3 Sekunden  ¤

*© Formatika GbR, Deutschland






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