1 /* SPDX-License-Identifier: GPL-2.0 */
3 #define TRACE_SYSTEM vmalloc
5 #if !defined(_TRACE_VMALLOC_H) || defined(TRACE_HEADER_MULTI_READ)
6 #define _TRACE_VMALLOC_H
8 #include <linux/tracepoint.h>
11 * alloc_vmap_area - called when a new vmap allocation occurs
12 * @addr: an allocated address
13 * @size: a requested size
14 * @align: a requested alignment
15 * @vstart: a requested start range
16 * @vend: a requested end range
17 * @failed: an allocation failed or not
19 * This event is used for a debug purpose, it can give an extra
20 * information for a developer about how often it occurs and which
21 * parameters are passed for further validation.
23 TRACE_EVENT(alloc_vmap_area,
25 TP_PROTO(unsigned long addr, unsigned long size, unsigned long align,
26 unsigned long vstart, unsigned long vend, int failed),
28 TP_ARGS(addr, size, align, vstart, vend, failed),
31 __field(unsigned long, addr)
32 __field(unsigned long, size)
33 __field(unsigned long, align)
34 __field(unsigned long, vstart)
35 __field(unsigned long, vend)
42 __entry->align = align;
43 __entry->vstart = vstart;
45 __entry->failed = failed;
48 TP_printk("va_start: %lu size=%lu align=%lu vstart=0x%lx vend=0x%lx failed=%d",
49 __entry->addr, __entry->size, __entry->align,
50 __entry->vstart, __entry->vend, __entry->failed)
54 * purge_vmap_area_lazy - called when vmap areas were lazily freed
55 * @start: purging start address
56 * @end: purging end address
57 * @npurged: numbed of purged vmap areas
59 * This event is used for a debug purpose. It gives some
60 * indication about start:end range and how many objects
63 TRACE_EVENT(purge_vmap_area_lazy,
65 TP_PROTO(unsigned long start, unsigned long end,
66 unsigned int npurged),
68 TP_ARGS(start, end, npurged),
71 __field(unsigned long, start)
72 __field(unsigned long, end)
73 __field(unsigned int, npurged)
77 __entry->start = start;
79 __entry->npurged = npurged;
82 TP_printk("start=0x%lx end=0x%lx num_purged=%u",
83 __entry->start, __entry->end, __entry->npurged)
87 * free_vmap_area_noflush - called when a vmap area is freed
88 * @va_start: a start address of VA
89 * @nr_lazy: number of current lazy pages
90 * @nr_lazy_max: number of maximum lazy pages
92 * This event is used for a debug purpose. It gives some
93 * indication about a VA that is released, number of current
94 * outstanding areas and a maximum allowed threshold before
95 * dropping all of them.
97 TRACE_EVENT(free_vmap_area_noflush,
99 TP_PROTO(unsigned long va_start, unsigned long nr_lazy,
100 unsigned long nr_lazy_max),
102 TP_ARGS(va_start, nr_lazy, nr_lazy_max),
105 __field(unsigned long, va_start)
106 __field(unsigned long, nr_lazy)
107 __field(unsigned long, nr_lazy_max)
111 __entry->va_start = va_start;
112 __entry->nr_lazy = nr_lazy;
113 __entry->nr_lazy_max = nr_lazy_max;
116 TP_printk("va_start=0x%lx nr_lazy=%lu nr_lazy_max=%lu",
117 __entry->va_start, __entry->nr_lazy, __entry->nr_lazy_max)
120 #endif /* _TRACE_VMALLOC_H */
122 /* This part must be outside protection */
123 #include <trace/define_trace.h>