Re: [RFC][PATCH] VFS interface for extended attributes

[Andreas Dilger]

On Nov 15, 2001  16:08 +1100, Nathan Scott wrote:
> +	if (ops) {
> +		if (flags & EA_CREATE) {
> +			if (ops->create)
> +				error = ops->create(i, name, value, size);
> +		}
> +		else if (flags & EA_REPLACE) {
> +			if (ops->replace)
> +				error = ops->replace(i, name, value, size);
> +		}
> +		else if (flags & EA_REMOVE) {
> +			if (ops->remove)
> +				error = ops->remove(i, name);
> +		}
> +		else if (ops->set)
> +			error = ops->set(i, name, value, size);
> +	}

> +	int (*create) (struct inode *, char *, void *, size_t);
> +	int (*replace) (struct inode *, char *, void *, size_t);
> +	int (*set) (struct inode *, char *, void *, size_t);

What is the distinction between "set" and "replace" or "set" and "create"?
Is it analogous to open(,O_CREAT|O_EXCL)?  If so, why are there not just
flags to distinguish the two, but also separate VFS operations?

Cheers, Andreas
--
Andreas Dilger
http://sourceforge.net/projects/ext2resize/
http://www-mddsp.enel.ucalgary.ca/People/adilger/