Re: [PATCH v2 1/9] mm: Add msharefs filesystem

Al Viro
2022-06-30T22:58:26Z

On Wed, Jun 29, 2022 at 04:53:52PM -0600, Khalid Aziz wrote:
> +static int
> +msharefs_d_hash(const struct dentry *dentry, struct qstr *qstr)
> +{
> + unsigned long hash = init_name_hash(dentry);
> + const unsigned char *s = qstr->name;
> + unsigned int len = qstr->len;
> +
> + while (len--)
> + hash = partial_name_hash(*s++, hash);
> + qstr->hash = end_name_hash(hash);
> + return 0;
> +}

What do you need that for and how is it different from letting it
use full_name_hash() (which is what it will do if you leave
dentry_operations->d_hash equal to NULL)?