diff options
| author | Wu Fengguang <fengguang.wu@intel.com> | 2011-08-29 09:52:23 -0600 |
|---|---|---|
| committer | Wu Fengguang <fengguang.wu@intel.com> | 2011-08-31 08:48:15 +0800 |
| commit | c8ad620638f97bdb7c8ef8cc788f08a04b14eadc (patch) | |
| tree | 9541b23f41a8240c6377658adeb580d04fa7a3e0 /include/trace | |
| parent | 9e79e3e9dd9672b37ac9412e9a926714306551fe (diff) | |
| download | lwn-c8ad620638f97bdb7c8ef8cc788f08a04b14eadc.tar.gz lwn-c8ad620638f97bdb7c8ef8cc788f08a04b14eadc.zip | |
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>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/writeback.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h index 6bca4cc0063c..5f172703eb4f 100644 --- a/include/trace/events/writeback.h +++ b/include/trace/events/writeback.h @@ -298,7 +298,7 @@ DECLARE_EVENT_CLASS(writeback_single_inode_template, __array(char, name, 32) __field(unsigned long, ino) __field(unsigned long, state) - __field(unsigned long, age) + __field(unsigned long, dirtied_when) __field(unsigned long, writeback_index) __field(long, nr_to_write) __field(unsigned long, wrote) @@ -309,19 +309,19 @@ DECLARE_EVENT_CLASS(writeback_single_inode_template, dev_name(inode->i_mapping->backing_dev_info->dev), 32); __entry->ino = inode->i_ino; __entry->state = inode->i_state; - __entry->age = (jiffies - inode->dirtied_when) * - 1000 / HZ; + __entry->dirtied_when = inode->dirtied_when; __entry->writeback_index = inode->i_mapping->writeback_index; __entry->nr_to_write = nr_to_write; __entry->wrote = nr_to_write - wbc->nr_to_write; ), - TP_printk("bdi %s: ino=%lu state=%s age=%lu " + TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu " "index=%lu to_write=%ld wrote=%lu", __entry->name, __entry->ino, show_inode_state(__entry->state), - __entry->age, + __entry->dirtied_when, + (jiffies - __entry->dirtied_when) / HZ, __entry->writeback_index, __entry->nr_to_write, __entry->wrote |