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[4/4] ext4.5: document the journal_cycle_record mount options

Message ID 20230314141058.3267404-5-yi.zhang@huaweicloud.com
State Superseded
Headers show
Series e2fsprogs: journal cycled record transactions between each mount | expand

Commit Message

Zhang Yi March 14, 2023, 2:10 p.m. UTC 
From: Zhang Yi <yi.zhang@huawei.com>

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

Patch

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