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Diffstat (limited to 'fs/jbd2/transaction.c')
-rw-r--r--fs/jbd2/transaction.c29
1 files changed, 27 insertions, 2 deletions
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index df9f29760efa..b7e2385c6e92 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -30,6 +30,8 @@
#include <linux/bug.h>
#include <linux/module.h>
+#include <trace/events/jbd2.h>
+
static void __jbd2_journal_temp_unlink_buffer(struct journal_head *jh);
static void __jbd2_journal_unfile_buffer(struct journal_head *jh);
@@ -100,6 +102,7 @@ jbd2_get_transaction(journal_t *journal, transaction_t *transaction)
journal->j_running_transaction = transaction;
transaction->t_max_wait = 0;
transaction->t_start = jiffies;
+ transaction->t_requested = 0;
return transaction;
}
@@ -306,6 +309,8 @@ repeat:
*/
update_t_max_wait(transaction, ts);
handle->h_transaction = transaction;
+ handle->h_requested_credits = nblocks;
+ handle->h_start_jiffies = jiffies;
atomic_inc(&transaction->t_updates);
atomic_inc(&transaction->t_handle_count);
jbd_debug(4, "Handle %p given %d credits (total %d, free %d)\n",
@@ -352,7 +357,8 @@ static handle_t *new_handle(int nblocks)
* Return a pointer to a newly allocated handle, or an ERR_PTR() value
* on failure.
*/
-handle_t *jbd2__journal_start(journal_t *journal, int nblocks, gfp_t gfp_mask)
+handle_t *jbd2__journal_start(journal_t *journal, int nblocks, gfp_t gfp_mask,
+ unsigned int type, unsigned int line_no)
{
handle_t *handle = journal_current_handle();
int err;
@@ -378,6 +384,11 @@ handle_t *jbd2__journal_start(journal_t *journal, int nblocks, gfp_t gfp_mask)
current->journal_info = NULL;
handle = ERR_PTR(err);
}
+ handle->h_type = type;
+ handle->h_line_no = line_no;
+ trace_jbd2_handle_start(journal->j_fs_dev->bd_dev,
+ handle->h_transaction->t_tid, type,
+ line_no, nblocks);
return handle;
}
EXPORT_SYMBOL(jbd2__journal_start);
@@ -385,7 +396,7 @@ EXPORT_SYMBOL(jbd2__journal_start);
handle_t *jbd2_journal_start(journal_t *journal, int nblocks)
{
- return jbd2__journal_start(journal, nblocks, GFP_NOFS);
+ return jbd2__journal_start(journal, nblocks, GFP_NOFS, 0, 0);
}
EXPORT_SYMBOL(jbd2_journal_start);
@@ -447,7 +458,14 @@ int jbd2_journal_extend(handle_t *handle, int nblocks)
goto unlock;
}
+ trace_jbd2_handle_extend(journal->j_fs_dev->bd_dev,
+ handle->h_transaction->t_tid,
+ handle->h_type, handle->h_line_no,
+ handle->h_buffer_credits,
+ nblocks);
+
handle->h_buffer_credits += nblocks;
+ handle->h_requested_credits += nblocks;
atomic_add(nblocks, &transaction->t_outstanding_credits);
result = 0;
@@ -1376,6 +1394,13 @@ int jbd2_journal_stop(handle_t *handle)
}
jbd_debug(4, "Handle %p going down\n", handle);
+ trace_jbd2_handle_stats(journal->j_fs_dev->bd_dev,
+ handle->h_transaction->t_tid,
+ handle->h_type, handle->h_line_no,
+ jiffies - handle->h_start_jiffies,
+ handle->h_sync, handle->h_requested_credits,
+ (handle->h_requested_credits -
+ handle->h_buffer_credits));
/*
* Implement synchronous transaction batching. If the handle