include/trace/events/page_pool.h

Source file repositories/reference/linux-study-clean/include/trace/events/page_pool.h

File Facts

System
Linux kernel
Corpus path
include/trace/events/page_pool.h
Extension
.h
Size
2831 bytes
Lines
120
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

#undef TRACE_SYSTEM
#define TRACE_SYSTEM page_pool

#if !defined(_TRACE_PAGE_POOL_H) || defined(TRACE_HEADER_MULTI_READ)
#define      _TRACE_PAGE_POOL_H

#include <linux/types.h>
#include <linux/tracepoint.h>

#include <trace/events/mmflags.h>
#include <net/page_pool/types.h>

TRACE_EVENT(page_pool_release,

	TP_PROTO(const struct page_pool *pool,
		 s32 inflight, u32 hold, u32 release),

	TP_ARGS(pool, inflight, hold, release),

	TP_STRUCT__entry(
		__field(const struct page_pool *, pool)
		__field(s32,	inflight)
		__field(u32,	hold)
		__field(u32,	release)
		__field(u64,	cnt)
	),

	TP_fast_assign(
		__entry->pool		= pool;
		__entry->inflight	= inflight;
		__entry->hold		= hold;
		__entry->release	= release;
		__entry->cnt		= pool->destroy_cnt;
	),

	TP_printk("page_pool=%p inflight=%d hold=%u release=%u cnt=%llu",
		__entry->pool, __entry->inflight, __entry->hold,
		__entry->release, __entry->cnt)
);

TRACE_EVENT(page_pool_state_release,

	TP_PROTO(const struct page_pool *pool,
		 netmem_ref netmem, u32 release),

	TP_ARGS(pool, netmem, release),

	TP_STRUCT__entry(
		__field(const struct page_pool *,	pool)
		__field(unsigned long,			netmem)
		__field(u32,				release)
		__field(unsigned long,			pfn)
	),

	TP_fast_assign(
		__entry->pool		= pool;
		__entry->netmem		= (__force unsigned long)netmem;
		__entry->release	= release;
		__entry->pfn		= netmem_pfn_trace(netmem);
	),

	TP_printk("page_pool=%p netmem=%p is_net_iov=%lu pfn=0x%lx release=%u",
		  __entry->pool, (void *)__entry->netmem,
		  __entry->netmem & NET_IOV, __entry->pfn, __entry->release)
);

TRACE_EVENT(page_pool_state_hold,

	TP_PROTO(const struct page_pool *pool,
		 netmem_ref netmem, u32 hold),

	TP_ARGS(pool, netmem, hold),

	TP_STRUCT__entry(
		__field(const struct page_pool *,	pool)
		__field(unsigned long,			netmem)
		__field(u32,				hold)
		__field(unsigned long,			pfn)
	),

	TP_fast_assign(
		__entry->pool	= pool;
		__entry->netmem	= (__force unsigned long)netmem;
		__entry->hold	= hold;
		__entry->pfn	= netmem_pfn_trace(netmem);
	),

	TP_printk("page_pool=%p netmem=%p is_net_iov=%lu, pfn=0x%lx hold=%u",
		  __entry->pool, (void *)__entry->netmem,
		  __entry->netmem & NET_IOV, __entry->pfn, __entry->hold)

Annotation

Implementation Notes