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

From: Khalid Aziz
Date: Fri Jul 01 2022 - 12:09:31 EST


On 6/30/22 16:57, Al Viro wrote:
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)?

I don't have a specific reason to use msharefs_d_hash(). If full_name_hash() can work, I don't mind reducing amount of code in my patch. I will take a look at it.

Thanks,
Khalid