Mark Saad wrote: > On Thu, Nov 17, 2011 at 1:36 PM, Alfred Perlstein <alf...@freebsd.org> > wrote: > > * Rick Macklem <rmack...@uoguelph.ca> [111116 21:16] wrote: > >> Alfred Perlstein wrote: > >> > Rick, I have a question, what will happen if the > >> > nfs_freesillyrename() > >> > call happens when the mount is down? Will it block the > >> > taskqueue_thread? > >> > > >> > If so, it might make more sense to make a taskqueue per mount > >> > point. > >> > > >> > If not, excuse me. :-) > >> > > >> Well, all nfs_freesillyrename() does is a vrele() on the parent > >> directory when the file node's use count has gone to 0. > >> I can't think why that would do any RPC, so I don't see a problem? > >> If you do see a problem with vrele() on the directory, please let > >> me > >> know. > >> > >> The problem this fixes is a LOR that would occur when the vrele() > >> on > >> the directory was done by the thread doing VOP_INACTIVE(), since it > >> already has the file vnode lock and the vrele() was locking the > >> parent > >> directory. This could cause a fairly rare deadlock. > > > > Yes, I understand the VFS deadlock. > > > > I see, I didn't realize the call was against the directory, > > thank you for explaining. > > > > -Alfred > Rick > Any chance this will make it back into 7.3-RELEASE and 7.4-RELEASE ? > I'm relatively new to FreeBSD, but I've never heard of an MFC to a Release branch. (As far as I know, if it ever happens, it's for a serious errata or security issue.)
Unless I'm incorrect (someone please correct me if I'm wrong), the answer would be no, rick. > > -- > mark saad | nones...@longcount.org _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
