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synced 2026-04-18 10:23:08 +02:00
Vincent Whitchurch
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>
117 lines
2.7 KiB
C
117 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM filemap
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#if !defined(_TRACE_FILEMAP_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_FILEMAP_H
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#include <linux/types.h>
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#include <linux/tracepoint.h>
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#include <linux/mm.h>
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#include <linux/memcontrol.h>
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#include <linux/device.h>
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#include <linux/kdev_t.h>
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#include <linux/errseq.h>
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DECLARE_EVENT_CLASS(mm_filemap_op_page_cache,
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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(unsigned long, pfn)
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__field(unsigned long, i_ino)
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__field(unsigned long, index)
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__field(dev_t, s_dev)
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),
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TP_fast_assign(
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__entry->pfn = page_to_pfn(page);
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__entry->i_ino = page->mapping->host->i_ino;
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__entry->index = page->index;
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if (page->mapping->host->i_sb)
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__entry->s_dev = page->mapping->host->i_sb->s_dev;
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else
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__entry->s_dev = page->mapping->host->i_rdev;
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),
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TP_printk("dev %d:%d ino %lx page=%p pfn=0x%lx ofs=%lu",
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MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
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__entry->i_ino,
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pfn_to_page(__entry->pfn),
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__entry->pfn,
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__entry->index << PAGE_SHIFT)
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);
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DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_delete_from_page_cache,
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TP_PROTO(struct page *page),
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TP_ARGS(page)
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);
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DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_add_to_page_cache,
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TP_PROTO(struct page *page),
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TP_ARGS(page)
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);
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TRACE_EVENT(filemap_set_wb_err,
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TP_PROTO(struct address_space *mapping, errseq_t eseq),
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TP_ARGS(mapping, eseq),
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TP_STRUCT__entry(
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__field(unsigned long, i_ino)
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__field(dev_t, s_dev)
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__field(errseq_t, errseq)
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),
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TP_fast_assign(
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__entry->i_ino = mapping->host->i_ino;
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__entry->errseq = eseq;
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if (mapping->host->i_sb)
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__entry->s_dev = mapping->host->i_sb->s_dev;
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else
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__entry->s_dev = mapping->host->i_rdev;
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),
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TP_printk("dev=%d:%d ino=0x%lx errseq=0x%x",
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MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
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__entry->i_ino, __entry->errseq)
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);
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TRACE_EVENT(file_check_and_advance_wb_err,
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TP_PROTO(struct file *file, errseq_t old),
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TP_ARGS(file, old),
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TP_STRUCT__entry(
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__field(struct file *, file)
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__field(unsigned long, i_ino)
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__field(dev_t, s_dev)
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__field(errseq_t, old)
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__field(errseq_t, new)
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),
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TP_fast_assign(
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__entry->file = file;
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__entry->i_ino = file->f_mapping->host->i_ino;
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if (file->f_mapping->host->i_sb)
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__entry->s_dev =
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file->f_mapping->host->i_sb->s_dev;
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else
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__entry->s_dev =
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file->f_mapping->host->i_rdev;
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__entry->old = old;
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__entry->new = file->f_wb_err;
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),
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TP_printk("file=%p dev=%d:%d ino=0x%lx old=0x%x new=0x%x",
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__entry->file, MAJOR(__entry->s_dev),
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MINOR(__entry->s_dev), __entry->i_ino, __entry->old,
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__entry->new)
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);
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#endif /* _TRACE_FILEMAP_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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