On Tue, Mar 6, 2018 at 6:02 AM, yangerkun <yangerkun@xxxxxxxxxx> wrote:
>
> When there is no upper_mnt, lower multi hardlink should not construct
> multi inode for overlay since there won't copyup.
>
This doesn't really describe a problem.
AFAIK, the only problem has to do with fsnotify and the fix is already in
overlayfs-next:
764baba80168 ovl: hash non-dir by lower inode for fsnotify
Miklos,
Are you planning to send a pull request soon?
Thanks,
Amir.
> Signed-off-by: yangerkun <yangerkun@xxxxxxxxxx>
> ---
> fs/overlayfs/inode.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
> index fcd97b783fa1..fb0a8eff1d8c 100644
> --- a/fs/overlayfs/inode.c
> +++ b/fs/overlayfs/inode.c
> @@ -696,7 +696,7 @@ struct inode *ovl_get_inode(struct super_block *sb, struct dentry *upperdentry,
> * Hash non-indexed dir by upper inode for NFS export.
> */
> is_dir = S_ISDIR(realinode->i_mode);
> - if (is_dir && (indexed || !sb->s_export_op || !ofs->upper_mnt))
> + if (!ofs->upper_mnt || (is_dir && !sb->s_export_op))
> origin = lowerdentry;
>
> if (upperdentry || origin) {
> --
> 2.13.6
>
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