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From: Theodore Ts'o <tytso@mit.edu>
To: Ext4 Developers List <linux-ext4@vger.kernel.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Subject: [PATCH 04/28] ext4: Add new tracepoint for jbd2_cleanup_journal_tail
Date: Tue,  2 Mar 2010 13:18:21 -0500	[thread overview]
Message-ID: <1267553925-6308-5-git-send-email-tytso@mit.edu> (raw)
In-Reply-To: <1267553925-6308-1-git-send-email-tytso@mit.edu>

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 fs/jbd2/checkpoint.c        |    1 +
 include/trace/events/jbd2.h |   28 ++++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 0 deletions(-)

diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c
index 8868493..30beb11 100644
--- a/fs/jbd2/checkpoint.c
+++ b/fs/jbd2/checkpoint.c
@@ -507,6 +507,7 @@ int jbd2_cleanup_journal_tail(journal_t *journal)
 	if (blocknr < journal->j_tail)
 		freed = freed + journal->j_last - journal->j_first;
 
+	trace_jbd2_cleanup_journal_tail(journal, first_tid, blocknr, freed);
 	jbd_debug(1,
 		  "Cleaning journal tail from %d to %d (offset %lu), "
 		  "freeing %lu\n",
diff --git a/include/trace/events/jbd2.h b/include/trace/events/jbd2.h
index 96b370a..bf16545 100644
--- a/include/trace/events/jbd2.h
+++ b/include/trace/events/jbd2.h
@@ -199,6 +199,34 @@ TRACE_EVENT(jbd2_checkpoint_stats,
 		  __entry->forced_to_close, __entry->written, __entry->dropped)
 );
 
+TRACE_EVENT(jbd2_cleanup_journal_tail,
+
+	TP_PROTO(journal_t *journal, tid_t first_tid,
+		 unsigned long block_nr, unsigned long freed),
+
+	TP_ARGS(journal, first_tid, block_nr, freed),
+
+	TP_STRUCT__entry(
+		__field(	dev_t,	dev			)
+		__field(	tid_t,	tail_sequence		)
+		__field(	tid_t,	first_tid		)
+		__field(unsigned long,	block_nr		)
+		__field(unsigned long,	freed			)
+	),
+
+	TP_fast_assign(
+		__entry->dev		= journal->j_fs_dev->bd_dev;
+		__entry->tail_sequence	= journal->j_tail_sequence;
+		__entry->first_tid	= first_tid;
+		__entry->block_nr	= block_nr;
+		__entry->freed		= freed;
+	),
+
+	TP_printk("dev %s from %u to %u offset %lu freed %lu",
+		  jbd2_dev_to_name(__entry->dev), __entry->tail_sequence,
+		  __entry->first_tid, __entry->block_nr, __entry->freed)
+);
+
 #endif /* _TRACE_JBD2_H */
 
 /* This part must be outside protection */
-- 
1.6.6.1.1.g974db.dirty


  parent reply	other threads:[~2010-03-02 18:18 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-02 18:18 [PATCH 00/28] Ext4 patch queue for the 2.6.34 merge window Theodore Ts'o
2010-03-02 18:18 ` [PATCH 01/28] ext4: fix async i/o writes beyond 4GB to a sparse file Theodore Ts'o
2010-03-02 18:18 ` [PATCH 02/28] ext4: Fix optional-arg mount options Theodore Ts'o
2010-03-02 18:18 ` [PATCH 03/28] ext4: Add block validity check when truncating indirect block mapped inodes Theodore Ts'o
2010-03-02 18:18 ` Theodore Ts'o [this message]
2010-03-02 18:18 ` [PATCH 05/28] ext4: Add new tracepoints to debug delayed allocation space functions Theodore Ts'o
2010-03-02 18:18 ` [PATCH 06/28] ext4: Use slab allocator for sub-page sized allocations Theodore Ts'o
2010-03-02 18:18 ` [PATCH 07/28] ext4: Use bitops to read/modify EXT4_I(inode)->i_state Theodore Ts'o
2010-03-02 18:18 ` [PATCH 08/28] ext4: Reserve INCOMPAT_EA_INODE and INCOMPAT_DIRDATA feature codepoints Theodore Ts'o
2010-03-02 18:18 ` [PATCH 09/28] ext4: move __func__ into a macro for ext4_warning, ext4_error Theodore Ts'o
2010-03-02 18:18 ` [PATCH 10/28] ext4: add missing error checking to ext4_expand_extra_isize_ea() Theodore Ts'o
2010-03-02 18:18 ` [PATCH 11/28] ext4: correctly calculate number of blocks for fiemap Theodore Ts'o
2010-03-03  7:47   ` Akira Fujita
2010-03-03  8:34     ` Leonard Michlmayr
2010-03-03 17:52     ` tytso
2010-03-04  5:40       ` Akira Fujita
2010-03-04 21:44         ` Leonard Michlmayr
2010-03-04 22:28           ` [incomplete PATCH] ext4: avoid overflow in fiemap Leonard Michlmayr
2010-03-07  3:38             ` tytso
2010-03-04 23:38           ` [PATCH 11/28] ext4: correctly calculate number of blocks for fiemap Eric Sandeen
2010-03-05 16:46             ` Leonard Michlmayr
2010-03-04 22:08         ` tytso
2010-03-04 23:47           ` Eric Sandeen
2010-03-02 18:18 ` [PATCH 12/28] jbd2: delay discarding buffers in journal_unmap_buffer Theodore Ts'o
2010-03-02 18:18 ` [PATCH 13/28] ext4: Fix BUG_ON at fs/buffer.c:652 in no journal mode Theodore Ts'o
2010-03-02 18:18 ` [PATCH 14/28] ext4: Add flag to files with blocks intentionally past EOF Theodore Ts'o
2010-03-02 18:18 ` [PATCH 15/28] ext4: mount flags manipulation cleanup Theodore Ts'o
2010-03-02 18:18 ` [PATCH 16/28] ext4: trivial quota cleanup Theodore Ts'o
2010-03-02 18:18 ` [PATCH 17/28] jbd2: clean up an assertion in jbd2_journal_commit_transaction() Theodore Ts'o
2010-03-02 18:18 ` [PATCH 18/28] ext4: Fix fencepost error in chosing choosing group vs file preallocation Theodore Ts'o
2010-03-02 18:18 ` [PATCH 19/28] ext4: deprecate obsoleted mount options Theodore Ts'o
2010-03-02 18:18 ` [PATCH 20/28] ext4: fix error handling in migrate Theodore Ts'o
2010-03-02 18:18 ` [PATCH 21/28] ext4: explicitly remove inode from orphan list after failed direct io Theodore Ts'o
2010-03-02 18:18 ` [PATCH 22/28] ext4: Handle non empty on-disk orphan link Theodore Ts'o
2010-03-02 18:18 ` [PATCH 23/28] ext4: make "offset" consistent in ext4_check_dir_entry() Theodore Ts'o
2010-03-02 18:18 ` [PATCH 24/28] ext4: mechanical change on dio get_block code in prepare for it to be used by buffer write Theodore Ts'o
2010-03-02 18:18 ` [PATCH 25/28] ext4: use ext4_get_block_write in " Theodore Ts'o
2010-03-02 18:18 ` [PATCH 26/28] ext4: Use direct_IO_no_locking in ext4 dio read Theodore Ts'o
2010-03-02 18:18 ` [PATCH 27/28] ext4: Convert BUG_ON checks to use ext4_error() instead Theodore Ts'o
2010-03-06 13:03   ` Aneesh Kumar K. V
2010-03-07  2:45     ` tytso
2010-03-07  5:51       ` Eric Sandeen
2010-03-07 17:36         ` Andreas Dilger
2010-03-08 17:46       ` Frank Mayhar
2010-03-02 18:18 ` [PATCH 28/28] ext4: Fix ext4_quota_write cross block boundary behaviour Theodore Ts'o
2010-03-02 18:26 ` [PATCH 00/28] Ext4 patch queue for the 2.6.34 merge window tytso

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