[3.16.y-ckt extended stable] Patch "ext4: enable journal checksum when metadata checksum feature enabled" has been added to staging queue
Luis Henriques
luis.henriques at canonical.com
Mon Nov 10 11:33:57 UTC 2014
This is a note to let you know that I have just added a patch titled
ext4: enable journal checksum when metadata checksum feature enabled
to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree
which can be found at:
http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.16.y-queue
This patch is scheduled to be released in version 3.16.7-ckt1.
If you, or anyone else, feels it should not be added to this tree, please
reply to this email.
For more information about the 3.16.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable
Thanks.
-Luis
------
>From 678a43997243c8fbd8e98ef2c031df048a7e8cd9 Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <darrick.wong at oracle.com>
Date: Thu, 30 Oct 2014 10:53:16 -0400
Subject: ext4: enable journal checksum when metadata checksum feature enabled
commit 98c1a7593fa355fda7f5a5940c8bf5326ca964ba upstream.
If metadata checksumming is turned on for the FS, we need to tell the
journal to use checksumming too.
Signed-off-by: Darrick J. Wong <darrick.wong at oracle.com>
Signed-off-by: Theodore Ts'o <tytso at mit.edu>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
fs/ext4/super.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index a6c188bb5265..447ccd4af707 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3502,6 +3502,10 @@ 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
+ /* don't forget to enable journal_csum when metadata_csum is enabled. */
+ 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)
--
2.1.0
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