diff mbox series

[2/2] ext4: fix extent_status trace points

Message ID 20191114200147.1073-2-dmonakhov@gmail.com
State Accepted, archived
Headers show
Series [1/2] ext4: fix symbolic enum printing in trace output | expand

Commit Message

Dmitry Monakhov Nov. 14, 2019, 8:01 p.m. UTC 
Show pblock only if it has meaningful value.

# before
   ext4:ext4_es_lookup_extent_exit: dev 253,0 ino 12 found 1 [1/4294967294) 576460752303423487 H
   ext4:ext4_es_lookup_extent_exit: dev 253,0 ino 12 found 1 [2/4294967293) 576460752303423487 HR
# after
   ext4:ext4_es_lookup_extent_exit: dev 253,0 ino 12 found 1 [1/4294967294) 0 H
   ext4:ext4_es_lookup_extent_exit: dev 253,0 ino 12 found 1 [2/4294967293) 0 HR

Signed-off-by: Dmitry Monakhov <dmonakhov@gmail.com>
---
 fs/ext4/extents_status.h    | 6 ++++++
 include/trace/events/ext4.h | 8 ++++----
 2 files changed, 10 insertions(+), 4 deletions(-)

Comments

Theodore Ts'o Jan. 25, 2020, 7:03 a.m. UTC | #1 
On Thu, Nov 14, 2019 at 08:01:47PM +0000, Dmitry Monakhov wrote:
> Show pblock only if it has meaningful value.
> 
> # before
>    ext4:ext4_es_lookup_extent_exit: dev 253,0 ino 12 found 1 [1/4294967294) 576460752303423487 H
>    ext4:ext4_es_lookup_extent_exit: dev 253,0 ino 12 found 1 [2/4294967293) 576460752303423487 HR
> # after
>    ext4:ext4_es_lookup_extent_exit: dev 253,0 ino 12 found 1 [1/4294967294) 0 H
>    ext4:ext4_es_lookup_extent_exit: dev 253,0 ino 12 found 1 [2/4294967293) 0 HR
> 
> Signed-off-by: Dmitry Monakhov <dmonakhov@gmail.com>

Thanks, applied.

					- Ted
diff mbox series

Patch

diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h
index 825313c..4ec30a7 100644
--- a/fs/ext4/extents_status.h
+++ b/fs/ext4/extents_status.h
@@ -209,6 +209,12 @@  static inline ext4_fsblk_t ext4_es_pblock(struct extent_status *es)
 	return es->es_pblk & ~ES_MASK;
 }
 
+static inline ext4_fsblk_t ext4_es_show_pblock(struct extent_status *es)
+{
+	ext4_fsblk_t pblock = ext4_es_pblock(es);
+	return pblock == ~ES_MASK ? 0 : pblock;
+}
+
 static inline void ext4_es_store_pblock(struct extent_status *es,
 					ext4_fsblk_t pb)
 {
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index 3bf7128..19c8766 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -2282,7 +2282,7 @@  DECLARE_EVENT_CLASS(ext4__es_extent,
 		__entry->ino	= inode->i_ino;
 		__entry->lblk	= es->es_lblk;
 		__entry->len	= es->es_len;
-		__entry->pblk	= ext4_es_pblock(es);
+		__entry->pblk	= ext4_es_show_pblock(es);
 		__entry->status	= ext4_es_status(es);
 	),
 
@@ -2371,7 +2371,7 @@  TRACE_EVENT(ext4_es_find_extent_range_exit,
 		__entry->ino	= inode->i_ino;
 		__entry->lblk	= es->es_lblk;
 		__entry->len	= es->es_len;
-		__entry->pblk	= ext4_es_pblock(es);
+		__entry->pblk	= ext4_es_show_pblock(es);
 		__entry->status	= ext4_es_status(es);
 	),
 
@@ -2425,7 +2425,7 @@  TRACE_EVENT(ext4_es_lookup_extent_exit,
 		__entry->ino	= inode->i_ino;
 		__entry->lblk	= es->es_lblk;
 		__entry->len	= es->es_len;
-		__entry->pblk	= ext4_es_pblock(es);
+		__entry->pblk	= ext4_es_show_pblock(es);
 		__entry->status	= ext4_es_status(es);
 		__entry->found	= found;
 	),
@@ -2593,7 +2593,7 @@  TRACE_EVENT(ext4_es_insert_delayed_block,
 		__entry->ino		= inode->i_ino;
 		__entry->lblk		= es->es_lblk;
 		__entry->len		= es->es_len;
-		__entry->pblk		= ext4_es_pblock(es);
+		__entry->pblk		= ext4_es_show_pblock(es);
 		__entry->status		= ext4_es_status(es);
 		__entry->allocated	= allocated;
 	),