Viewing file:  vmalloc.h (3.2 KB) -rw-r--r--
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/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM vmalloc
#if !defined(_TRACE_VMALLOC_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_VMALLOC_H
#include <linux/tracepoint.h>
/**
* alloc_vmap_area - called when a new vmap allocation occurs
* @addr: an allocated address
* @size: a requested size
* @align: a requested alignment
* @vstart: a requested start range
* @vend: a requested end range
* @failed: an allocation failed or not
*
* This event is used for a debug purpose, it can give an extra
* information for a developer about how often it occurs and which
* parameters are passed for further validation.
*/
TRACE_EVENT(alloc_vmap_area,
TP_PROTO(unsigned long addr, unsigned long size, unsigned long align,
unsigned long vstart, unsigned long vend, int failed),
TP_ARGS(addr, size, align, vstart, vend, failed),
TP_STRUCT__entry(
__field(unsigned long, addr)
__field(unsigned long, size)
__field(unsigned long, align)
__field(unsigned long, vstart)
__field(unsigned long, vend)
__field(int, failed)
),
TP_fast_assign(
__entry->addr = addr;
__entry->size = size;
__entry->align = align;
__entry->vstart = vstart;
__entry->vend = vend;
__entry->failed = failed;
),
TP_printk("va_start: %lu size=%lu align=%lu vstart=0x%lx vend=0x%lx failed=%d",
__entry->addr, __entry->size, __entry->align,
__entry->vstart, __entry->vend, __entry->failed)
);
/**
* purge_vmap_area_lazy - called when vmap areas were lazily freed
* @start: purging start address
* @end: purging end address
* @npurged: numbed of purged vmap areas
*
* This event is used for a debug purpose. It gives some
* indication about start:end range and how many objects
* are released.
*/
TRACE_EVENT(purge_vmap_area_lazy,
TP_PROTO(unsigned long start, unsigned long end,
unsigned int npurged),
TP_ARGS(start, end, npurged),
TP_STRUCT__entry(
__field(unsigned long, start)
__field(unsigned long, end)
__field(unsigned int, npurged)
),
TP_fast_assign(
__entry->start = start;
__entry->end = end;
__entry->npurged = npurged;
),
TP_printk("start=0x%lx end=0x%lx num_purged=%u",
__entry->start, __entry->end, __entry->npurged)
);
/**
* free_vmap_area_noflush - called when a vmap area is freed
* @va_start: a start address of VA
* @nr_lazy: number of current lazy pages
* @nr_lazy_max: number of maximum lazy pages
*
* This event is used for a debug purpose. It gives some
* indication about a VA that is released, number of current
* outstanding areas and a maximum allowed threshold before
* dropping all of them.
*/
TRACE_EVENT(free_vmap_area_noflush,
TP_PROTO(unsigned long va_start, unsigned long nr_lazy,
unsigned long nr_lazy_max),
TP_ARGS(va_start, nr_lazy, nr_lazy_max),
TP_STRUCT__entry(
__field(unsigned long, va_start)
__field(unsigned long, nr_lazy)
__field(unsigned long, nr_lazy_max)
),
TP_fast_assign(
__entry->va_start = va_start;
__entry->nr_lazy = nr_lazy;
__entry->nr_lazy_max = nr_lazy_max;
),
TP_printk("va_start=0x%lx nr_lazy=%lu nr_lazy_max=%lu",
__entry->va_start, __entry->nr_lazy, __entry->nr_lazy_max)
);
#endif /* _TRACE_VMALLOC_H */
/* This part must be outside protection */
#include <trace/define_trace.h>
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