On Mar 21, 2013, at 8:58 AM, Konstantin Belousov <kostik...@gmail.com> wrote:
> On Wed, Mar 20, 2013 at 09:14:37PM -0400, Rick Macklem wrote: >> Well, read/write sharing of files over NFS is pretty rare, so I suspect >> a truncation of a file by another client (or locally in the NFS server) >> is a rare event. As such, not invalidating the buffers here doesn't seem >> like a big issue? (The client uses np->n_size to determine EOF.) >> >> Also, I think close-to-open consistency will typically throw away the >> buffers on the next open when it sees the mtime changed. (Yes, there >> won't necessarily be another open, but...) > nfs buffers are VMIO. Each VMIO buffer wires the pages it references. > Wired pages cannot be freed by vnode_pager_setsize() if the file is > truncated. Should I wait for a new patch, or should I give the one you sent yesterday a try? Thanks, /mich _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
