[GIT PULL] fscache rewrite -- please drop for now
David Howells
dhowells at redhat.com
Mon Aug 10 11:48:08 EDT 2020
Steve French <smfrench at gmail.com> wrote:
> cifs.ko also can set rsize quite small (even 1K for example, although
> that will be more than 10x slower than the default 4MB so hopefully no
> one is crazy enough to do that).
You can set rsize < PAGE_SIZE?
> I can't imagine an SMB3 server negotiating an rsize or wsize smaller than
> 64K in today's world (and typical is 1MB to 8MB) but the user can specify a
> much smaller rsize on mount. If 64K is an adequate minimum, we could change
> the cifs mount option parsing to require a certain minimum rsize if fscache
> is selected.
I've borrowed the 256K granule size used by various AFS implementations for
the moment. A 512-byte xattr can thus hold a bitmap covering 1G of file
space.
David
More information about the linux-afs
mailing list