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Index of /anon_sym/anon/sys/module/xt_limit
Index of /anon_sym/anon/sys/module/xt_limit
q=ٿ /* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_PERCPU_COUNTER_H
#define _LINUX_PERCPU_COUNTER_H
/*
* A simple "approximate counter" for use in ext2 and ext3 superblocks.
*
* WARNING: these things are HUGE. 4 kbytes per counter on 32-way P4.
*/
#include
#include
#include
#include
#include
#include
/* percpu_counter batch for local add or sub */
#define PERCPU_COUNTER_LOCAL_BATCH INT_MAX
#ifdef CONFIG_SMP
struct percpu_counter {
raw_spinlock_t lock;
s64 count;
#ifdef CONFIG_HOTPLUG_CPU
struct list_head list; /* All percpu_counters are on a list */
#endif
s32 __percpu *counters;
};
extern int percpu_counter_batch;
int __percpu_counter_init_many(struct percpu_counter *fbc, s64 amount,
gfp_t gfp, u32 nr_counters,
struct lock_class_key *key);
#define percpu_counter_init_many(fbc, value, gfp, nr_counters) \
({ \
static struct lock_class_key __key; \
\
__percpu_counter_init_many(fbc, value, gfp, nr_counters,\
&__key); \
})
#define percpu_counter_init(fbc, value, gfp) \
percpu_counter_init_many(fbc, value, gfp, 1)
void percpu_counter_destroy_many(struct percpu_counter *fbc, u32 nr_counters