4950276672
Patch series "kmemcheck: kill kmemcheck", v2. As discussed at LSF/MM, kill kmemcheck. KASan is a replacement that is able to work without the limitation of kmemcheck (single CPU, slow). KASan is already upstream. We are also not aware of any users of kmemcheck (or users who don't consider KASan as a suitable replacement). The only objection was that since KASAN wasn't supported by all GCC versions provided by distros at that time we should hold off for 2 years, and try again. Now that 2 years have passed, and all distros provide gcc that supports KASAN, kill kmemcheck again for the very same reasons. This patch (of 4): Remove kmemcheck annotations, and calls to kmemcheck from the kernel. [alexander.levin@verizon.com: correctly remove kmemcheck call from dma_map_sg_attrs] Link: http://lkml.kernel.org/r/20171012192151.26531-1-alexander.levin@verizon.com Link: http://lkml.kernel.org/r/20171007030159.22241-2-alexander.levin@verizon.com Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Cc: Alexander Potapenko <glider@google.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Tim Hansen <devtimhansen@gmail.com> Cc: Vegard Nossum <vegardno@ifi.uio.no> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
127 lines
3.8 KiB
C
127 lines
3.8 KiB
C
/*
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* INET An implementation of the TCP/IP protocol suite for the LINUX
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* operating system. INET is implemented using the BSD Socket
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* interface as the means of communication with the user level.
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*
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* Definitions for a generic INET TIMEWAIT sock
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*
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* From code originally in net/tcp.h
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _INET_TIMEWAIT_SOCK_
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#define _INET_TIMEWAIT_SOCK_
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#include <linux/list.h>
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#include <linux/timer.h>
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#include <linux/types.h>
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#include <linux/workqueue.h>
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#include <net/inet_sock.h>
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#include <net/sock.h>
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#include <net/tcp_states.h>
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#include <net/timewait_sock.h>
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#include <linux/atomic.h>
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struct inet_bind_bucket;
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/*
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* This is a TIME_WAIT sock. It works around the memory consumption
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* problems of sockets in such a state on heavily loaded servers, but
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* without violating the protocol specification.
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*/
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struct inet_timewait_sock {
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/*
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* Now struct sock also uses sock_common, so please just
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* don't add nothing before this first member (__tw_common) --acme
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*/
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struct sock_common __tw_common;
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#define tw_family __tw_common.skc_family
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#define tw_state __tw_common.skc_state
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#define tw_reuse __tw_common.skc_reuse
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#define tw_ipv6only __tw_common.skc_ipv6only
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#define tw_bound_dev_if __tw_common.skc_bound_dev_if
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#define tw_node __tw_common.skc_nulls_node
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#define tw_bind_node __tw_common.skc_bind_node
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#define tw_refcnt __tw_common.skc_refcnt
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#define tw_hash __tw_common.skc_hash
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#define tw_prot __tw_common.skc_prot
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#define tw_net __tw_common.skc_net
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#define tw_daddr __tw_common.skc_daddr
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#define tw_v6_daddr __tw_common.skc_v6_daddr
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#define tw_rcv_saddr __tw_common.skc_rcv_saddr
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#define tw_v6_rcv_saddr __tw_common.skc_v6_rcv_saddr
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#define tw_dport __tw_common.skc_dport
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#define tw_num __tw_common.skc_num
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#define tw_cookie __tw_common.skc_cookie
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#define tw_dr __tw_common.skc_tw_dr
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int tw_timeout;
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volatile unsigned char tw_substate;
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unsigned char tw_rcv_wscale;
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/* Socket demultiplex comparisons on incoming packets. */
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/* these three are in inet_sock */
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__be16 tw_sport;
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/* And these are ours. */
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unsigned int tw_kill : 1,
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tw_transparent : 1,
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tw_flowlabel : 20,
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tw_pad : 2, /* 2 bits hole */
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tw_tos : 8;
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struct timer_list tw_timer;
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struct inet_bind_bucket *tw_tb;
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};
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#define tw_tclass tw_tos
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static inline struct inet_timewait_sock *inet_twsk(const struct sock *sk)
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{
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return (struct inet_timewait_sock *)sk;
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}
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void inet_twsk_free(struct inet_timewait_sock *tw);
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void inet_twsk_put(struct inet_timewait_sock *tw);
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void inet_twsk_bind_unhash(struct inet_timewait_sock *tw,
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struct inet_hashinfo *hashinfo);
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struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk,
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struct inet_timewait_death_row *dr,
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const int state);
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void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk,
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struct inet_hashinfo *hashinfo);
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void __inet_twsk_schedule(struct inet_timewait_sock *tw, int timeo,
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bool rearm);
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static inline void inet_twsk_schedule(struct inet_timewait_sock *tw, int timeo)
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{
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__inet_twsk_schedule(tw, timeo, false);
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}
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static inline void inet_twsk_reschedule(struct inet_timewait_sock *tw, int timeo)
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{
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__inet_twsk_schedule(tw, timeo, true);
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}
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void inet_twsk_deschedule_put(struct inet_timewait_sock *tw);
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void inet_twsk_purge(struct inet_hashinfo *hashinfo, int family);
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static inline
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struct net *twsk_net(const struct inet_timewait_sock *twsk)
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{
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return read_pnet(&twsk->tw_net);
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}
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static inline
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void twsk_net_set(struct inet_timewait_sock *twsk, struct net *net)
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{
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write_pnet(&twsk->tw_net, net);
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}
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#endif /* _INET_TIMEWAIT_SOCK_ */
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