53d884a667
Some trace event formats print PFNs as hex while others print them as
decimal. This is rather annoying when attempting to grep through traces
to understand what's going on with a particular page.
$ git grep -ho 'pfn=[0x%lu]\+' include/trace/events/ | sort | uniq -c
11 pfn=0x%lx
12 pfn=%lu
2 pfn=%lx
Printing as hex is in the majority in the trace events, and all the normal
printks in mm/ also print PFNs as hex, so change all the PFN formats in
the trace events to use 0x%lx.
Link: https://lkml.kernel.org/r/20210602092608.1493-1-vincent.whitchurch@axis.com
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jesper Dangaard Brouer <hawk@kernel.org>
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM pagemap
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#if !defined(_TRACE_PAGEMAP_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_PAGEMAP_H
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#include <linux/tracepoint.h>
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#include <linux/mm.h>
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#define PAGEMAP_MAPPED 0x0001u
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#define PAGEMAP_ANONYMOUS 0x0002u
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#define PAGEMAP_FILE 0x0004u
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#define PAGEMAP_SWAPCACHE 0x0008u
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#define PAGEMAP_SWAPBACKED 0x0010u
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#define PAGEMAP_MAPPEDDISK 0x0020u
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#define PAGEMAP_BUFFERS 0x0040u
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#define trace_pagemap_flags(page) ( \
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(PageAnon(page) ? PAGEMAP_ANONYMOUS : PAGEMAP_FILE) | \
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(page_mapped(page) ? PAGEMAP_MAPPED : 0) | \
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(PageSwapCache(page) ? PAGEMAP_SWAPCACHE : 0) | \
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(PageSwapBacked(page) ? PAGEMAP_SWAPBACKED : 0) | \
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(PageMappedToDisk(page) ? PAGEMAP_MAPPEDDISK : 0) | \
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(page_has_private(page) ? PAGEMAP_BUFFERS : 0) \
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)
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TRACE_EVENT(mm_lru_insertion,
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TP_PROTO(struct page *page),
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TP_ARGS(page),
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TP_STRUCT__entry(
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__field(struct page *, page )
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__field(unsigned long, pfn )
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__field(enum lru_list, lru )
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__field(unsigned long, flags )
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),
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TP_fast_assign(
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__entry->page = page;
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__entry->pfn = page_to_pfn(page);
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__entry->lru = page_lru(page);
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__entry->flags = trace_pagemap_flags(page);
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),
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/* Flag format is based on page-types.c formatting for pagemap */
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TP_printk("page=%p pfn=0x%lx lru=%d flags=%s%s%s%s%s%s",
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__entry->page,
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__entry->pfn,
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__entry->lru,
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__entry->flags & PAGEMAP_MAPPED ? "M" : " ",
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__entry->flags & PAGEMAP_ANONYMOUS ? "a" : "f",
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__entry->flags & PAGEMAP_SWAPCACHE ? "s" : " ",
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__entry->flags & PAGEMAP_SWAPBACKED ? "b" : " ",
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__entry->flags & PAGEMAP_MAPPEDDISK ? "d" : " ",
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__entry->flags & PAGEMAP_BUFFERS ? "B" : " ")
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);
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TRACE_EVENT(mm_lru_activate,
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TP_PROTO(struct page *page),
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TP_ARGS(page),
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TP_STRUCT__entry(
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__field(struct page *, page )
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__field(unsigned long, pfn )
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),
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TP_fast_assign(
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__entry->page = page;
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__entry->pfn = page_to_pfn(page);
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),
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/* Flag format is based on page-types.c formatting for pagemap */
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TP_printk("page=%p pfn=0x%lx", __entry->page, __entry->pfn)
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);
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#endif /* _TRACE_PAGEMAP_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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