ext4: add tracepoint for ext4_journal_start
authorTheodore Ts'o <tytso@mit.edu>
Mon, 11 Jul 2011 02:37:50 +0000 (22:37 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Mon, 11 Jul 2011 02:37:50 +0000 (22:37 -0400)
This will help debug who is responsible for starting a jbd2 transaction.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

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