linux-ext4 - [PATCH 4/7] jbd2: Drop unnecessary branch from jbd2_journal

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190802151356.777-5-jack@suse.cz>
Date:   Fri,  2 Aug 2019 17:13:53 +0200
From:   Jan Kara <jack@...e.cz>
To:     Ted Tso <tytso@....edu>
Cc:     <linux-ext4@...r.kernel.org>, Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Anna-Maria Gleixner <anna-maria@...utronix.de>,
        Julia Cartwright <julia@...com>, Jan Kara <jack@...e.cz>
Subject: [PATCH 4/7] jbd2: Drop unnecessary branch from jbd2_journal_forget()

We have cleared both dirty & jbddirty bits from the bh. So there's no
difference between bforget() and brelse(). Thus there's no point jumping
to no_jbd branch.

Signed-off-by: Jan Kara <jack@...e.cz>
---
 fs/jbd2/transaction.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index c4fe050e78c6..9ccef3d6e817 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -1596,10 +1596,6 @@ int jbd2_journal_forget (handle_t *handle, struct buffer_head *bh)
 		} else {
 			__jbd2_journal_unfile_buffer(jh);
 			jbd2_journal_put_journal_head(jh);
-			if (!buffer_jbd(bh)) {
-				spin_unlock(&journal->j_list_lock);
-				goto not_jbd;
-			}
 		}
 		spin_unlock(&journal->j_list_lock);
 	} else if (jh->b_transaction) {
-- 
2.16.4