From: Jan Kara jack@suse.cz
[ Upstream commit 015c6033068208d6227612c878877919f3fcf6b6 ]
jbd2 statistics counting number of blocks logged in a transaction was wrong. It didn't count the commit block and more importantly it didn't count revoke descriptor blocks. Make sure these get properly counted.
Reviewed-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Jan Kara jack@suse.cz Link: https://lore.kernel.org/r/20191105164437.32602-13-jack@suse.cz Signed-off-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- fs/jbd2/commit.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c index 04a1ee8..d4e6288 100644 --- a/fs/jbd2/commit.c +++ b/fs/jbd2/commit.c @@ -724,7 +724,6 @@ void jbd2_journal_commit_transaction(journal_t *journal) submit_bh(REQ_OP_WRITE, REQ_SYNC, bh); } cond_resched(); - stats.run.rs_blocks_logged += bufs;
/* Force a new descriptor to be generated next time round the loop. */ @@ -811,6 +810,7 @@ void jbd2_journal_commit_transaction(journal_t *journal) if (unlikely(!buffer_uptodate(bh))) err = -EIO; jbd2_unfile_log_bh(bh); + stats.run.rs_blocks_logged++;
/* * The list contains temporary buffer heads created by @@ -856,6 +856,7 @@ void jbd2_journal_commit_transaction(journal_t *journal) BUFFER_TRACE(bh, "ph5: control buffer writeout done: unfile"); clear_buffer_jwrite(bh); jbd2_unfile_log_bh(bh); + stats.run.rs_blocks_logged++; __brelse(bh); /* One for getblk */ /* AKPM: bforget here */ } @@ -877,6 +878,7 @@ void jbd2_journal_commit_transaction(journal_t *journal) } if (cbh) err = journal_wait_on_commit_record(journal, cbh); + stats.run.rs_blocks_logged++; if (jbd2_has_feature_async_commit(journal) && journal->j_flags & JBD2_BARRIER) { blkdev_issue_flush(journal->j_dev, GFP_NOFS, NULL);