mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-10-31 06:14:39 +01:00
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/[email protected]
Signed-off-by: Vincent Whitchurch <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jesper Dangaard Brouer <[email protected]>
Cc: Ilias Apalodimas <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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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