On Tue, May 16, 2017 at 7:45 AM, Amir Goldstein <amir73il@xxxxxxxxx> wrote:
> Fixes: 42f269b92540 ("ovl: rearrange code in ovl_copy_up_locked()")
> Cc: <stable@xxxxxxxxxxxxxxx> # v4.11
> Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx>
Thanks, applied.
Miklos
> ---
> fs/overlayfs/copy_up.c | 11 ++++++-----
> 1 file changed, 6 insertions(+), 5 deletions(-)
>
> Miklos,
>
> Found that fall out while trying to 'simplify' this function. (see WIP at
> https://github.com/amir73il/linux/commits/ovl-index-dir).
>
> Amir.
>
> diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c
> index 9008ab9..061a844 100644
> --- a/fs/overlayfs/copy_up.c
> +++ b/fs/overlayfs/copy_up.c
> @@ -343,12 +343,13 @@ static int ovl_copy_up_locked(struct dentry *workdir, struct dentry *upperdir,
> temp = ovl_do_tmpfile(upperdir, stat->mode);
> else
> temp = ovl_lookup_temp(workdir, dentry);
> - err = PTR_ERR(temp);
> - if (IS_ERR(temp))
> - goto out1;
> -
> err = 0;
> - if (!tmpfile)
> + if (IS_ERR(temp)) {
> + err = PTR_ERR(temp);
> + temp = NULL;
> + }
> +
> + if (!err && !tmpfile)
> err = ovl_create_real(wdir, temp, &cattr, NULL, true);
>
> if (new_creds) {
> --
> 2.7.4
>
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