This is a note to let you know that I've just added the patch titled
ext4: enable journal checksum when metadata checksum feature enabled
to the 3.17-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ext4-enable-journal-checksum-when-metadata-checksum-feature-enabled.patch
and it can be found in the queue-3.17 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 98c1a7593fa355fda7f5a5940c8bf5326ca964ba Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <darrick.wong@xxxxxxxxxx>
Date: Thu, 30 Oct 2014 10:53:16 -0400
Subject: ext4: enable journal checksum when metadata checksum feature enabled
From: "Darrick J. Wong" <darrick.wong@xxxxxxxxxx>
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@xxxxxxxxxx>
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/ext4/super.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3498,6 +3498,10 @@ static int ext4_fill_super(struct super_
#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)
Patches currently in stable-queue which might be from darrick.wong@xxxxxxxxxx are
queue-3.17/ext4-check-s_chksum_driver-when-looking-for-bg-csum-presence.patch
queue-3.17/ext4-check-ea-value-offset-when-loading.patch
queue-3.17/x86-bpf_jit-fix-two-bugs-in-ebpf-jit-compiler.patch
queue-3.17/jbd2-free-bh-when-descriptor-block-checksum-fails.patch
queue-3.17/ext4-enable-journal-checksum-when-metadata-checksum-feature-enabled.patch
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