diff options
| author | Ross Zwisler | 2017-05-08 16:00:10 -0700 |
|---|---|---|
| committer | Linus Torvalds | 2017-05-08 17:15:16 -0700 |
| commit | d14a3f48a152b75a1e690d443f509c07c7b06c0e (patch) | |
| tree | c1bbefd30f268f316d01e9aa1c98ed8588382b50 /include/trace | |
| parent | 678c9fd0430a1431bd9901c76f41e04fcb3eac87 (diff) | |
dax: add tracepoints to dax_writeback_mapping_range()
Add tracepoints to dax_writeback_mapping_range(), following the same
logging conventions as the rest of DAX.
Here is an example writeback call:
msync-1085 [006] ....
200.902565: dax_writeback_range: dev 259:0 ino 0x1003 pgoff 0x200-0x2ff
msync-1085 [006] ....
200.902579: dax_writeback_range_done: dev 259:0 ino 0x1003 pgoff 0x200-0x2ff
[ross.zwisler@linux.intel.com: fix regression in dax_writeback_mapping_range()]
Link: http://lkml.kernel.org/r/20170314215358.31451-1-ross.zwisler@linux.intel.com
Link: http://lkml.kernel.org/r/20170221195116.13278-5-ross.zwisler@linux.intel.com
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/fs_dax.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/trace/events/fs_dax.h b/include/trace/events/fs_dax.h index 2f15dfea7fb1..9afe8c8f0bef 100644 --- a/include/trace/events/fs_dax.h +++ b/include/trace/events/fs_dax.h @@ -194,6 +194,38 @@ DEFINE_PTE_FAULT_EVENT(dax_pfn_mkwrite_no_entry); DEFINE_PTE_FAULT_EVENT(dax_pfn_mkwrite); DEFINE_PTE_FAULT_EVENT(dax_load_hole); +DECLARE_EVENT_CLASS(dax_writeback_range_class, + TP_PROTO(struct inode *inode, pgoff_t start_index, pgoff_t end_index), + TP_ARGS(inode, start_index, end_index), + TP_STRUCT__entry( + __field(unsigned long, ino) + __field(pgoff_t, start_index) + __field(pgoff_t, end_index) + __field(dev_t, dev) + ), + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->start_index = start_index; + __entry->end_index = end_index; + ), + TP_printk("dev %d:%d ino %#lx pgoff %#lx-%#lx", + MAJOR(__entry->dev), + MINOR(__entry->dev), + __entry->ino, + __entry->start_index, + __entry->end_index + ) +) + +#define DEFINE_WRITEBACK_RANGE_EVENT(name) \ +DEFINE_EVENT(dax_writeback_range_class, name, \ + TP_PROTO(struct inode *inode, pgoff_t start_index, pgoff_t end_index),\ + TP_ARGS(inode, start_index, end_index)) + +DEFINE_WRITEBACK_RANGE_EVENT(dax_writeback_range); +DEFINE_WRITEBACK_RANGE_EVENT(dax_writeback_range_done); + #endif /* _TRACE_FS_DAX_H */ /* This part must be outside protection */ |