Re: [PATCH v2 1/9] ima: Rename backing_inode to real_inode

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On Mon, Feb 5, 2024 at 8:25 PM Stefan Berger <stefanb@xxxxxxxxxxxxx> wrote:
>
> Rename the backing_inode variable to real_inode since it gets its value
> from real_inode().
>
> Suggested-by: Amir Goldstein <amir73il@xxxxxxxxx>
> Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxxxxx>

Acked-by: Amir Goldstein <amir73il@xxxxxxxxx>

> ---
>  security/integrity/ima/ima_main.c | 18 ++++++++++--------
>  1 file changed, 10 insertions(+), 8 deletions(-)
>
> diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
> index cc1217ac2c6f..f1a01d32b92a 100644
> --- a/security/integrity/ima/ima_main.c
> +++ b/security/integrity/ima/ima_main.c
> @@ -208,7 +208,7 @@ static int process_measurement(struct file *file, const struct cred *cred,
>                                u32 secid, char *buf, loff_t size, int mask,
>                                enum ima_hooks func)
>  {
> -       struct inode *backing_inode, *inode = file_inode(file);
> +       struct inode *real_inode, *inode = file_inode(file);
>         struct integrity_iint_cache *iint = NULL;
>         struct ima_template_desc *template_desc = NULL;
>         char *pathbuf = NULL;
> @@ -285,14 +285,16 @@ static int process_measurement(struct file *file, const struct cred *cred,
>                 iint->measured_pcrs = 0;
>         }
>
> -       /* Detect and re-evaluate changes made to the backing file. */
> -       backing_inode = d_real_inode(file_dentry(file));
> -       if (backing_inode != inode &&
> +       /*
> +        * Detect and re-evaluate changes made to the inode holding file data.
> +        */
> +       real_inode = d_real_inode(file_dentry(file));
> +       if (real_inode != inode &&
>             (action & IMA_DO_MASK) && (iint->flags & IMA_DONE_MASK)) {
> -               if (!IS_I_VERSION(backing_inode) ||
> -                   backing_inode->i_sb->s_dev != iint->real_dev ||
> -                   backing_inode->i_ino != iint->real_ino ||
> -                   !inode_eq_iversion(backing_inode, iint->version)) {
> +               if (!IS_I_VERSION(real_inode) ||
> +                   real_inode->i_sb->s_dev != iint->real_dev ||
> +                   real_inode->i_ino != iint->real_ino ||
> +                   !inode_eq_iversion(real_inode, iint->version)) {
>                         iint->flags &= ~IMA_DONE_MASK;
>                         iint->measured_pcrs = 0;
>                 }
> --
> 2.43.0
>





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