From: <gregkh@linuxfoundation.org>
To: khlebnikov@yandex-team.ru, gregkh@linuxfoundation.org, tytso@mit.edu
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "ext4: keep existing extra fields when inode expands" has been added to the 4.9-stable tree
Date: Mon, 12 Jun 2017 11:07:12 +0200 [thread overview]
Message-ID: <14972584326665@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
ext4: keep existing extra fields when inode expands
to the 4.9-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-keep-existing-extra-fields-when-inode-expands.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From 887a9730614727c4fff7cb756711b190593fc1df Mon Sep 17 00:00:00 2001
From: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Date: Sun, 21 May 2017 22:36:23 -0400
Subject: ext4: keep existing extra fields when inode expands
From: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
commit 887a9730614727c4fff7cb756711b190593fc1df upstream.
ext4_expand_extra_isize() should clear only space between old and new
size.
Fixes: 6dd4ee7cab7e # v2.6.23
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/inode.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -5441,8 +5441,9 @@ static int ext4_expand_extra_isize(struc
/* No extended attributes present */
if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR) ||
header->h_magic != cpu_to_le32(EXT4_XATTR_MAGIC)) {
- memset((void *)raw_inode + EXT4_GOOD_OLD_INODE_SIZE, 0,
- new_extra_isize);
+ memset((void *)raw_inode + EXT4_GOOD_OLD_INODE_SIZE +
+ EXT4_I(inode)->i_extra_isize, 0,
+ new_extra_isize - EXT4_I(inode)->i_extra_isize);
EXT4_I(inode)->i_extra_isize = new_extra_isize;
return 0;
}
Patches currently in stable-queue which might be from khlebnikov@yandex-team.ru are
queue-4.9/ext4-keep-existing-extra-fields-when-inode-expands.patch
reply other threads:[~2017-06-12 9:07 UTC|newest]
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