On Wed, Oct 09, 2019 at 07:31:24PM +0800, Ian Kent wrote:
> Add the fs_context_operations method .free that performs fs
> context cleanup on context release.
>
> Signed-off-by: Ian Kent <raven@xxxxxxxxxx>
> ---
Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx>
> fs/xfs/xfs_super.c | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
> index 230b0e2a184c..c7c33395b648 100644
> --- a/fs/xfs/xfs_super.c
> +++ b/fs/xfs/xfs_super.c
> @@ -2127,10 +2127,29 @@ static const struct super_operations xfs_super_operations = {
> .free_cached_objects = xfs_fs_free_cached_objects,
> };
>
> +static void xfs_fc_free(struct fs_context *fc)
> +{
> + struct xfs_fs_context *ctx = fc->fs_private;
> + struct xfs_mount *mp = fc->s_fs_info;
> +
> + /*
> + * mp and ctx are stored in the fs_context when it is
> + * initialized. mp is transferred to the superblock on
> + * a successful mount, but if an error occurs before the
> + * transfer we have to free it here.
> + */
> + if (mp) {
> + xfs_free_fsname(mp);
> + kfree(mp);
> + }
> + kfree(ctx);
> +}
> +
> static const struct fs_context_operations xfs_context_ops = {
> .parse_param = xfs_parse_param,
> .get_tree = xfs_get_tree,
> .reconfigure = xfs_reconfigure,
> + .free = xfs_fc_free,
> };
>
> static struct file_system_type xfs_fs_type = {
>
