On Thu, 2011-12-22 at 12:54 +0200, Dmitry Kasatkin wrote:
> 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.
>
> Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@xxxxxxxxx>
Acked-by: Mimi Zohar <zohar@xxxxxxxxxx>
(Stable should be cc'ed on this patch.)
thanks,
Mimi
> ---
> fs/attr.c | 5 +++++
> 1 files changed, 5 insertions(+), 0 deletions(-)
>
> diff --git a/fs/attr.c b/fs/attr.c
> index 7ee7ba4..b8f55c4 100644
> --- a/fs/attr.c
> +++ b/fs/attr.c
> @@ -176,6 +176,11 @@ int notify_change(struct dentry * dentry, struct iattr * attr)
> 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)) {
> mode_t amode = attr->ia_mode;
> /* Flag setting protected by i_mutex */
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