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Message-Id: <200803212029.m2LKTW5H008881@imap1.linux-foundation.org>
Date: Fri, 21 Mar 2008 13:29:32 -0700
From: akpm@...ux-foundation.org
To: duaneg@...da.com, jack@...e.cz, linux-ext4@...r.kernel.org,
stable@...nel.org, mm-commits@...r.kernel.org
Subject: - jbd-correctly-unescape-journal-data-blocks.patch removed from -mm tree
The patch titled
jbd: correctly unescape journal data blocks
has been removed from the -mm tree. Its filename was
jbd-correctly-unescape-journal-data-blocks.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: jbd: correctly unescape journal data blocks
From: "Duane Griffin" <duaneg@...da.com>
Fix a long-standing typo (predating git) that will cause data corruption if a
journal data block needs unescaping. At the moment the wrong buffer head's
data is being unescaped.
To test this case mount a filesystem with data=journal, start creating and
deleting a bunch of files containing only JFS_MAGIC_NUMBER (0xc03b3998), then
pull the plug on the device. Without this patch the files will contain zeros
instead of the correct data after recovery.
Signed-off-by: Duane Griffin <duaneg@...da.com>
Acked-by: Jan Kara <jack@...e.cz>
Cc: <linux-ext4@...r.kernel.org>
Cc: <stable@...nel.org>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
---
fs/jbd/recovery.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN fs/jbd/recovery.c~jbd-correctly-unescape-journal-data-blocks fs/jbd/recovery.c
--- a/fs/jbd/recovery.c~jbd-correctly-unescape-journal-data-blocks
+++ a/fs/jbd/recovery.c
@@ -478,7 +478,7 @@ static int do_one_pass(journal_t *journa
memcpy(nbh->b_data, obh->b_data,
journal->j_blocksize);
if (flags & JFS_FLAG_ESCAPE) {
- *((__be32 *)bh->b_data) =
+ *((__be32 *)nbh->b_data) =
cpu_to_be32(JFS_MAGIC_NUMBER);
}
_
Patches currently in -mm which might be from duaneg@...da.com are
origin.patch
jbd2-only-create-debugfs-and-stats-entries-if-cache-initialisation-is-successful.patch
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