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| author | Lukas Czerner <lczerner@redhat.com> | 2011-05-23 18:33:02 +0200 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2011-06-25 17:29:51 +0200 |
| commit | 99cb1a318c37bf462c53d43f4dacb7b4896ce0c9 (patch) | |
| tree | 32a9046649777e8cc589bbc8e0afb382642ba450 /fs/jbd/checkpoint.c | |
| parent | 785c4bcc0d88ff006a0b2120815a71e86ecf21ce (diff) | |
| download | op-kernel-dev-99cb1a318c37bf462c53d43f4dacb7b4896ce0c9.zip op-kernel-dev-99cb1a318c37bf462c53d43f4dacb7b4896ce0c9.tar.gz | |
jbd: Add fixed tracepoints
This commit adds fixed tracepoint for jbd. It has been based on fixed
tracepoints for jbd2, however there are missing those for collecting
statistics, since I think that it will require more intrusive patch so I
should have its own commit, if someone decide that it is needed. Also
there are new tracepoints in __journal_drop_transaction() and
journal_update_superblock().
The list of jbd tracepoints:
jbd_checkpoint
jbd_start_commit
jbd_commit_locking
jbd_commit_flushing
jbd_commit_logging
jbd_drop_transaction
jbd_end_commit
jbd_do_submit_data
jbd_cleanup_journal_tail
jbd_update_superblock_end
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/jbd/checkpoint.c')
| -rw-r--r-- | fs/jbd/checkpoint.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/jbd/checkpoint.c b/fs/jbd/checkpoint.c index e4b87bc..dea7503b 100644 --- a/fs/jbd/checkpoint.c +++ b/fs/jbd/checkpoint.c @@ -22,6 +22,7 @@ #include <linux/jbd.h> #include <linux/errno.h> #include <linux/slab.h> +#include <trace/events/jbd.h> /* * Unlink a buffer from a transaction checkpoint list. @@ -358,6 +359,7 @@ int log_do_checkpoint(journal_t *journal) * journal straight away. */ result = cleanup_journal_tail(journal); + trace_jbd_checkpoint(journal, result); jbd_debug(1, "cleanup_journal_tail returned %d\n", result); if (result <= 0) return result; @@ -503,6 +505,7 @@ int cleanup_journal_tail(journal_t *journal) if (blocknr < journal->j_tail) freed = freed + journal->j_last - journal->j_first; + trace_jbd_cleanup_journal_tail(journal, first_tid, blocknr, freed); jbd_debug(1, "Cleaning journal tail from %d to %d (offset %u), " "freeing %u\n", @@ -752,6 +755,7 @@ void __journal_drop_transaction(journal_t *journal, transaction_t *transaction) J_ASSERT(journal->j_committing_transaction != transaction); J_ASSERT(journal->j_running_transaction != transaction); + trace_jbd_drop_transaction(journal, transaction); jbd_debug(1, "Dropping transaction %d, all done\n", transaction->t_tid); kfree(transaction); } |
