writeback: show raw dirtied_when in trace writeback_single_inode
Save inode->dirtied_when in the raw trace output for reliable scripting, and to also show in formatted output the relative age in seconds for easy human reading. CC: Jan Kara <jack@suse.cz> Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
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@ -298,7 +298,7 @@ DECLARE_EVENT_CLASS(writeback_single_inode_template,
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__array(char, name, 32)
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__field(unsigned long, ino)
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__field(unsigned long, state)
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__field(unsigned long, age)
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__field(unsigned long, dirtied_when)
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__field(unsigned long, writeback_index)
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__field(long, nr_to_write)
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__field(unsigned long, wrote)
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@ -309,19 +309,19 @@ DECLARE_EVENT_CLASS(writeback_single_inode_template,
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dev_name(inode->i_mapping->backing_dev_info->dev), 32);
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__entry->ino = inode->i_ino;
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__entry->state = inode->i_state;
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__entry->age = (jiffies - inode->dirtied_when) *
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1000 / HZ;
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__entry->dirtied_when = inode->dirtied_when;
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__entry->writeback_index = inode->i_mapping->writeback_index;
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__entry->nr_to_write = nr_to_write;
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__entry->wrote = nr_to_write - wbc->nr_to_write;
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),
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TP_printk("bdi %s: ino=%lu state=%s age=%lu "
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TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
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"index=%lu to_write=%ld wrote=%lu",
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__entry->name,
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__entry->ino,
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show_inode_state(__entry->state),
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__entry->age,
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__entry->dirtied_when,
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(jiffies - __entry->dirtied_when) / HZ,
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__entry->writeback_index,
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__entry->nr_to_write,
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__entry->wrote
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