linux-ext4 - [PATCH 4/4] ext4.5: document the journal_cycle

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Message-Id: <20230314141058.3267404-5-yi.zhang@huaweicloud.com>
Date:   Tue, 14 Mar 2023 22:10:58 +0800
From:   Zhang Yi <yi.zhang@...weicloud.com>
To:     linux-ext4@...r.kernel.org
Cc:     tytso@....edu, adilger.kernel@...ger.ca, jack@...e.cz,
        yi.zhang@...wei.com, yi.zhang@...weicloud.com, yukuai3@...wei.com
Subject: [PATCH 4/4] ext4.5: document the journal_cycle_record mount options

From: Zhang Yi <yi.zhang@...wei.com>

Signed-off-by: Zhang Yi <yi.zhang@...wei.com>
---
 misc/ext4.5.in | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/misc/ext4.5.in b/misc/ext4.5.in
index c835a344..45392d1b 100644
--- a/misc/ext4.5.in
+++ b/misc/ext4.5.in
@@ -574,6 +574,12 @@ Commit block can be written to disk without waiting for descriptor blocks. If
 enabled older kernels cannot mount the device.
 This will enable 'journal_checksum' internally.
 .TP
+.B journal_cycle_record
+The journal continue to record transactions in a new mount behind the previous
+mount, instead of always record from the start of the logging area. This will
+alow logdump code in debugfs to dump continuous transactions between each
+mount.
+.TP
 .BR barrier=0 " / " barrier=1 " / " barrier " / " nobarrier
 These mount options have the same effect as in ext3.  The mount options
 "barrier" and "nobarrier" are added for consistency with other ext4 mount
-- 
2.31.1