Revision 71e7bc2bab77e64882c031c2af943c3256c1adb0 authored by David Carrillo-Cisneros on 17 August 2016, 20:55:04 UTC, committed by Ingo Molnar on 18 August 2016, 08:35:52 UTC
The call to smp_call_function_single in perf_event_read() may fail if an invalid or not online CPU index is passed. Warn user if such bug is present and return error. Signed-off-by: David Carrillo-Cisneros <davidcc@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul Turner <pjt@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vegard Nossum <vegard.nossum@gmail.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Link: http://lkml.kernel.org/r/1471467307-61171-2-git-send-email-davidcc@google.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
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raw.h
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
* interface as the means of communication with the user level.
*
* Definitions for the RAW-IP module.
*
* Version: @(#)raw.h 1.0.2 05/07/93
*
* Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _RAW_H
#define _RAW_H
#include <net/protocol.h>
#include <linux/icmp.h>
extern struct proto raw_prot;
void raw_icmp_error(struct sk_buff *, int, u32);
int raw_local_deliver(struct sk_buff *, int);
int raw_rcv(struct sock *, struct sk_buff *);
#define RAW_HTABLE_SIZE MAX_INET_PROTOS
struct raw_hashinfo {
rwlock_t lock;
struct hlist_head ht[RAW_HTABLE_SIZE];
};
#ifdef CONFIG_PROC_FS
int raw_proc_init(void);
void raw_proc_exit(void);
struct raw_iter_state {
struct seq_net_private p;
int bucket;
struct raw_hashinfo *h;
};
static inline struct raw_iter_state *raw_seq_private(struct seq_file *seq)
{
return seq->private;
}
void *raw_seq_start(struct seq_file *seq, loff_t *pos);
void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos);
void raw_seq_stop(struct seq_file *seq, void *v);
int raw_seq_open(struct inode *ino, struct file *file,
struct raw_hashinfo *h, const struct seq_operations *ops);
#endif
int raw_hash_sk(struct sock *sk);
void raw_unhash_sk(struct sock *sk);
struct raw_sock {
/* inet_sock has to be the first member */
struct inet_sock inet;
struct icmp_filter filter;
u32 ipmr_table;
};
static inline struct raw_sock *raw_sk(const struct sock *sk)
{
return (struct raw_sock *)sk;
}
#endif /* _RAW_H */
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