On Thu, 05 Jan 2012 10:39:41 -0800
James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> wrote:
> > > Please, go read Documentation/stable_kernel_rules.txt for how to
> > > properly submit patches to the stable kernel tree. The information here
> > > needs to be in the patch changelog itself, not in some random email
> > > thread that will get lost instantly into my email-archive-from-hell
> > > after I am done reading this.
> > >
> > > greg k-h
> >
> > Yes, I've read Documentation/stable_kernel_rules.txt and think this
> > patch meets the criteria for being backported.
> >
> > As far as I'm aware, this patch hasn't been upstreamed yet and is
> > waiting for someone, besides myself, to Ack it. Once Acked, either
> > Dmitry or I can send a pull request with an updated patch description.
> > Should this patch go in via the security tree?
>
> If it hasn't been upstreamed yet, just make sure you put
>
> cc: stable@xxxxxxxxxx
>
> In the signoffs of the patch you're sending upstream and the backport
> will occur automatically when the patch is finally upstreamed.
Mimi didn't write or send the patch.
This happily git-free maintainer simply goes in and edits the
changelog. I do this very very frequently.
Here's what I currently have. I plan to send this to Rip Van Viro.
From: Dmitry Kasatkin <dmitry.kasatkin@xxxxxxxxx>
Subject: vfs: increment iversion when a file is truncated
When a file is truncated with truncate()/ftruncate() and then closed,
iversion is not updated. This patch uses ATTR_SIZE flag as an indication
to increment iversion.
Mimi said:
On fput(), i_version is used to detect and flag files that have changed
and need to be re-measured in the IMA measurement policy. When a file
is truncated with truncate()/ftruncate() and then closed, i_version is
not updated. As a result, although the file has changed, it will not be
re-measured and added to the IMA measurement list on subsequent access.
Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@xxxxxxxxx>
Acked-by: Mimi Zohar <zohar@xxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/attr.c | 5 +++++
1 file changed, 5 insertions(+)
diff -puN fs/attr.c~vfs-increment-iversion-when-a-file-is-truncated fs/attr.c
--- a/fs/attr.c~vfs-increment-iversion-when-a-file-is-truncated
+++ a/fs/attr.c
@@ -176,6 +176,11 @@ int notify_change(struct dentry * dentry
return -EPERM;
}
+ if ((ia_valid & ATTR_SIZE) && IS_I_VERSION(inode)) {
+ if (attr->ia_size != inode->i_size)
+ inode_inc_iversion(inode);
+ }
+
if ((ia_valid & ATTR_MODE)) {
umode_t amode = attr->ia_mode;
/* Flag setting protected by i_mutex */
_
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
