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| author | Zeng Chi <zengchi@kylinos.cn> | 2026-09-21 18:24:42 +0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2026-09-22 08:36:16 -0700 |
| commit | 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d (patch) | |
| tree | 660d50d4139cb750fbde1ae3432452c20726c99d /include/net/icmp.h | |
| download | linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.tar.gz linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.zip | |
KVM: Don't pre-reserve xarray entries when storing empty/NULL attributesgrafted
Skip the xarray reservation loop when clearing all memory attributes, as
storing NULL only erases the entry and never needs to allocate, so no
reservation (and no cleanup of a failed one) is required in that case.
Suggested-by: Sean Christopherson <seanjc@google.com>
Cc: David Ballesteros <davimaba.v@proton.me>
Signed-off-by: Zeng Chi <zengchi@kylinos.cn>
Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com
[sean: split to separate patch]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'include/net/icmp.h')
| -rw-r--r-- | include/net/icmp.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/include/net/icmp.h b/include/net/icmp.h new file mode 100644 index 000000000..935ee13d9 --- /dev/null +++ b/include/net/icmp.h @@ -0,0 +1,64 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * 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 ICMP module. + * + * Version: @(#)icmp.h 1.0.4 05/13/93 + * + * Authors: Ross Biro + * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> + */ +#ifndef _ICMP_H +#define _ICMP_H + +#include <linux/icmp.h> + +#include <net/inet_sock.h> +#include <net/snmp.h> +#include <net/ip.h> + +struct icmp_err { + int errno; + unsigned int fatal:1; +}; + +extern const struct icmp_err icmp_err_convert[]; +#define ICMP_INC_STATS(net, field) SNMP_INC_STATS((net)->mib.icmp_statistics, field) +#define __ICMP_INC_STATS(net, field) __SNMP_INC_STATS((net)->mib.icmp_statistics, field) +#define ICMPMSGOUT_INC_STATS(net, field) SNMP_INC_STATS_ATOMIC_LONG((net)->mib.icmpmsg_statistics, field+256) +#define ICMPMSGIN_INC_STATS(net, field) SNMP_INC_STATS_ATOMIC_LONG((net)->mib.icmpmsg_statistics, field) + +struct dst_entry; +struct net_proto_family; +struct sk_buff; +struct net; + +void __icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info, + const struct inet_skb_parm *parm); +static inline void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info) +{ + __icmp_send(skb_in, type, code, info, IPCB(skb_in)); +} + +#if IS_ENABLED(CONFIG_NF_NAT) +void icmp_ndo_send(struct sk_buff *skb_in, int type, int code, __be32 info); +#else +static inline void icmp_ndo_send(struct sk_buff *skb_in, int type, int code, __be32 info) +{ + struct inet_skb_parm parm; + + memset(&parm, 0, sizeof(parm)); + __icmp_send(skb_in, type, code, info, &parm); +} +#endif + +int icmp_rcv(struct sk_buff *skb); +int icmp_err(struct sk_buff *skb, u32 info); +int icmp_init(void); +void icmp_out_count(struct net *net, unsigned char type); +bool icmp_build_probe(struct sk_buff *skb, struct icmphdr *icmphdr); + +#endif /* _ICMP_H */ |