From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: tytso@mit.edu, darrick.wong@oracle.com
Cc: linux-ext4@vger.kernel.org
Subject: [PATCH 1/2] ext4: enable journal checksum if metadata checksum feature enabled
Date: Mon, 20 Oct 2014 18:05:01 -0700 [thread overview]
Message-ID: <20141021010501.21404.59849.stgit@birch.djwong.org> (raw)
If metadata checksumming is turned on for the FS, we might as well
enable it for the journal too.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
fs/ext4/super.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index de38a96..5d51dbf 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3506,6 +3506,10 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
#ifdef CONFIG_EXT4_FS_POSIX_ACL
set_opt(sb, POSIX_ACL);
#endif
+ /* if metadata_csum, journal_csum is now defaulted on */
+ if (ext4_has_metadata_csum(sb))
+ set_opt(sb, JOURNAL_CHECKSUM);
+
if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_DATA)
set_opt(sb, JOURNAL_DATA);
else if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_ORDERED)
next reply other threads:[~2014-10-21 1:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-21 1:05 Darrick J. Wong [this message]
2014-10-21 1:05 ` [PATCH 2/2] ext4: create nojournal_checksum mount option Darrick J. Wong
2014-11-25 21:21 ` Theodore Ts'o
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20141021010501.21404.59849.stgit@birch.djwong.org \
--to=darrick.wong@oracle.com \
--cc=linux-ext4@vger.kernel.org \
--cc=tytso@mit.edu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).