From 0094f981bbaca3ae707c95c5e5977429d29c2dd0 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 5 Nov 2019 17:44:30 +0100 Subject: jbd2: Provide trace event for handle restarts Provide trace event for handle restarts to ease debugging. Reviewed-by: Theodore Ts'o Signed-off-by: Jan Kara Link: https://lore.kernel.org/r/20191105164437.32602-24-jack@suse.cz Signed-off-by: Theodore Ts'o --- fs/jbd2/transaction.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'fs/jbd2') diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c index 8f11b2d48ca0..a3374c1a3d41 100644 --- a/fs/jbd2/transaction.c +++ b/fs/jbd2/transaction.c @@ -747,6 +747,7 @@ int jbd2__journal_restart(handle_t *handle, int nblocks, int revoke_records, journal_t *journal; tid_t tid; int need_to_start; + int ret; /* If we've had an abort of any type, don't even think about * actually doing the restart! */ @@ -776,7 +777,12 @@ int jbd2__journal_restart(handle_t *handle, int nblocks, int revoke_records, DIV_ROUND_UP(revoke_records, journal->j_revoke_records_per_block); handle->h_revoke_credits = revoke_records; - return start_this_handle(journal, handle, gfp_mask); + ret = start_this_handle(journal, handle, gfp_mask); + trace_jbd2_handle_restart(journal->j_fs_dev->bd_dev, + ret ? 0 : handle->h_transaction->t_tid, + handle->h_type, handle->h_line_no, + handle->h_total_credits); + return ret; } EXPORT_SYMBOL(jbd2__journal_restart); -- cgit v1.2.3