[PATCH] Add man page for vfs_syncops

[Christoph Hellwig]

On Fri, Aug 09, 2013 at 11:08:03AM +0200, Karolin Seeger wrote:
> +	Some filesystems (even some journaled filesystems) require that a
> +	fsync() be performed on many meta data operations to ensure that the
> +	operation is guaranteed to remain in the filesystem after a power
> +	failure. This is particularly important for some cluster filesystems
> +	which are participating in a node failover system with clustered
> +	Samba. On those filesystems the <command>vfs_syncops</command> VFS module
> +	provides a way to perform those	operations safely.

I don't know a single Unix filesystems from the last 40 years where this
is not true.  Why isn't this the default behaviour in Samba instead of
having it in a module that very few people are going to use?