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path: root/include/net/sock_reuseport.h
blob: aecd30308d500b53a1b46902f2b3d254bcbc39b6 (plain)
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#ifndef _SOCK_REUSEPORT_H
#define _SOCK_REUSEPORT_H

#include <linux/filter.h>
#include <linux/skbuff.h>
#include <linux/types.h>
#include <net/sock.h>

struct sock_reuseport {
	struct rcu_head		rcu;

	u16			max_socks;	/* length of socks */
	u16			num_socks;	/* elements in socks */
	struct bpf_prog __rcu	*prog;		/* optional BPF sock selector */
	struct sock		*socks[0];	/* array of sock pointers */
};

extern int reuseport_alloc(struct sock *sk);
extern int reuseport_add_sock(struct sock *sk, struct sock *sk2);
extern void reuseport_detach_sock(struct sock *sk);
extern struct sock *reuseport_select_sock(struct sock *sk,
					  u32 hash,
					  struct sk_buff *skb,
					  int hdr_len);
extern struct bpf_prog *reuseport_attach_prog(struct sock *sk,
					      struct bpf_prog *prog);

#endif  /* _SOCK_REUSEPORT_H */
701f03cccf21e02bb1fdd3b852547d75c /drivers/usb/host/xhci-mtk.c parent0c744ea4f77d72b3dcebb7a8f2684633ec79be88 (diff)
tracing: Fix hwlat kthread migration
The hwlat tracer creates a kernel thread at start of the tracer. It is pinned to a single CPU and will move to the next CPU after each period of running. If the user modifies the migration thread's affinity, it will not change after that happens. The original code created the thread at the first instance it was called, but later was changed to destroy the thread after the tracer was finished, and would not be created until the next instance of the tracer was established. The code that initialized the affinity was only called on the initial instantiation of the tracer. After that, it was not initialized, and the previous affinity did not match the current newly created one, making it appear that the user modified the thread's affinity when it did not, and the thread failed to migrate again. Cc: stable@vger.kernel.org Fixes: 0330f7aa8ee6 ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'drivers/usb/host/xhci-mtk.c')