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kernel add
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#ifndef _NET_FLOWCACHE_H
#define _NET_FLOWCACHE_H
#include <linux/interrupt.h>
#include <linux/types.h>
#include <linux/timer.h>
#include <linux/notifier.h>
struct flow_cache_percpu {
struct hlist_head *hash_table;
int hash_count;
u32 hash_rnd;
int hash_rnd_recalc;
struct tasklet_struct flush_tasklet;
};
struct flow_cache {
u32 hash_shift;
struct flow_cache_percpu __percpu *percpu;
struct notifier_block hotcpu_notifier;
int low_watermark;
int high_watermark;
struct timer_list rnd_timer;
};
#endif /* _NET_FLOWCACHE_H */
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