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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/trace/events/mctp.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/trace/events/mctp.h')
| -rw-r--r-- | include/trace/events/mctp.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/include/trace/events/mctp.h b/include/trace/events/mctp.h new file mode 100644 index 000000000..165cf25f7 --- /dev/null +++ b/include/trace/events/mctp.h @@ -0,0 +1,78 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM mctp + +#if !defined(_TRACE_MCTP_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_MCTP_H + +#include <linux/tracepoint.h> + +#ifndef __TRACE_MCTP_ENUMS +#define __TRACE_MCTP_ENUMS +enum { + MCTP_TRACE_KEY_TIMEOUT, + MCTP_TRACE_KEY_REPLIED, + MCTP_TRACE_KEY_INVALIDATED, + MCTP_TRACE_KEY_CLOSED, + MCTP_TRACE_KEY_DROPPED, +}; +#endif /* __TRACE_MCTP_ENUMS */ + +TRACE_DEFINE_ENUM(MCTP_TRACE_KEY_TIMEOUT); +TRACE_DEFINE_ENUM(MCTP_TRACE_KEY_REPLIED); +TRACE_DEFINE_ENUM(MCTP_TRACE_KEY_INVALIDATED); +TRACE_DEFINE_ENUM(MCTP_TRACE_KEY_CLOSED); +TRACE_DEFINE_ENUM(MCTP_TRACE_KEY_DROPPED); + +TRACE_EVENT(mctp_key_acquire, + TP_PROTO(const struct mctp_sk_key *key), + TP_ARGS(key), + TP_STRUCT__entry( + __field(__u8, paddr) + __field(__u8, laddr) + __field(__u8, tag) + ), + TP_fast_assign( + __entry->paddr = key->peer_addr; + __entry->laddr = key->local_addr; + __entry->tag = key->tag; + ), + TP_printk("local %d, peer %d, tag %1x", + __entry->laddr, + __entry->paddr, + __entry->tag + ) +); + +TRACE_EVENT(mctp_key_release, + TP_PROTO(const struct mctp_sk_key *key, int reason), + TP_ARGS(key, reason), + TP_STRUCT__entry( + __field(__u8, paddr) + __field(__u8, laddr) + __field(__u8, tag) + __field(int, reason) + ), + TP_fast_assign( + __entry->paddr = key->peer_addr; + __entry->laddr = key->local_addr; + __entry->tag = key->tag; + __entry->reason = reason; + ), + TP_printk("local %d, peer %d, tag %1x %s", + __entry->laddr, + __entry->paddr, + __entry->tag, + __print_symbolic(__entry->reason, + { MCTP_TRACE_KEY_TIMEOUT, "timeout" }, + { MCTP_TRACE_KEY_REPLIED, "replied" }, + { MCTP_TRACE_KEY_INVALIDATED, "invalidated" }, + { MCTP_TRACE_KEY_CLOSED, "closed" }, + { MCTP_TRACE_KEY_DROPPED, "dropped" }) + ) +); + +#endif + +#include <trace/define_trace.h> |