diff options
| author | Konstantin Khlebnikov <khlebnikov@yandex-team.ru> | 2017-05-21 22:36:23 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-14 13:16:22 +0200 |
| commit | 7b9694cb7bf2fcd2b443807423b4b09fbbc3c4ff (patch) | |
| tree | ecf864ba4b0fb927dae1beb7768a8dea121ef3a2 /fs/ext4 | |
| parent | 08dc390b2745e0eb26375758534f52ce4eb983ae (diff) | |
ext4: keep existing extra fields when inode expands
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>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/inode.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index ccae64dad40c..27e34fbb0aa5 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -5162,8 +5162,9 @@ static int ext4_expand_extra_isize(struct inode *inode, /* 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; } |