Re: [PATCH 72/78] 9p: Lock directory streams with a CoMutex

[Michael Roth]

Quoting Greg Kurz (2020-06-16 11:41:36)
> On Tue, 16 Jun 2020 18:09:04 +0200
> Christian Schoenebeck <qemu_oss@crudebyte.com> wrote:
> 
> > On Dienstag, 16. Juni 2020 17:14:40 CEST Greg Kurz wrote:
> > > Cc'ing co-maintainer Christian Schoenebeck.
> > > 
> > > Christian,
> > > 
> > > If there are some more commits you think are worth being cherry picked
> > > for QEMU 4.2.1, please inform Michael before freeze on 2020-06-22.
> > 
> > Indeed, for that particular stable branch I would see the following 9p fixes
> > as additional candidates (chronologically top down):
> > 
> > 841b8d099c [trivial] 9pfs: local: Fix possible memory leak in local_link()
> > 846cf408a4 [maybe] 9p: local: always return -1 on error in 
> > local_unlinkat_common
> > 9580d60e66 [maybe] virtio-9p-device: fix memleak in 
> > virtio_9p_device_unrealize
> > 659f195328 [trivial] 9p/proxy: Fix export_flags
> > a5804fcf7b [maybe] 9pfs: local: ignore O_NOATIME if we don't have 
> > permissions
> > 03556ea920 [trivial] 9pfs: include linux/limits.h for XATTR_SIZE_MAX
> > a4c4d46272 [recommended] xen/9pfs: yield when there isn't enough room on 
> > the ring
> > 
> > What do you think Greg?
> > 
> 
> AFAIK, only regressions and fixes to severe bugs (QEMU crashes, hangs, CVEs) 
> go
> to stable QEMU releases. It doesn't seem to be the case for any of the commits
> listed above but I had only a quick look.

That's the main focus, but if memory leaks and other minor fixes get tagged
for stable I'll generally pull those in as well if the backport is fairly
straightforward. As that was the case with the patches above I went
ahead and pull those in.

> 
> > What's the recommended way for me to keep track of imminent stable picks/
> > freezes in future?
> > 
> 
> Hmm good question. I'm usually notified when Michael posts the patch round-up
> and a 9p patch is already in the list, like for the present patch. Other than
> that I watch qemu-stable from time to time or the planning pages in the wiki.
> 
> Michael, anything better to suggest to Christian ?

I think that about covers it. You can also subscribe to the planning
pages, e.g. https://wiki.qemu.org/Planning/5.0 (by clicking the
star/"add to watchlist" icon), then you'll get notifications when
additional release/freeze dates are added. Generally it will be updated
shortly before the patch round-up gets posted to qemu-stable.

> 
> > Best regards,
> > Christian Schoenebeck
> > 
> > 
>