Hi Naman, On 2025-07-31 21:13:27+0530, Naman Jain wrote: > On 7/30/2025 1:15 AM, Michael Kelley wrote: > > From: Thomas Weißschuh <li...@weissschuh.net> Sent: Tuesday, July 29, 2025 > > 11:47 AM > > > On 2025-07-29 18:39:45+0000, Michael Kelley wrote: > > > > From: Naman Jain <namj...@linux.microsoft.com> Sent: Wednesday, July > > > > 23, 2025 12:02 AM <snip>
> > > > Unfortunately, I don't see a fix, short of backporting support for the > > > > .bin_size function, as this is exactly the problem that function solves. > > > > > > It should work out in practice. (I introduced the .bin_size function) > > > > The race I describe is unlikely, particularly if attribute groups are > > created > > once and then not disturbed. But note that the Hyper-V fcopy group can > > get updated in a running VM via update_sysfs_group(), which also calls > > create_files(). Such an update might marginally increase the potential for > > the race and for getting the wrong size. Still, I agree it should work out > > in practice. > > > > Michael > > > > > > > > Thomas > > hi Thomas, > Would it be possible to port your changes on 6.12 kernel, to avoid such > race conditions? Possible, surely. But Greg has to accept it. And you will need to do the backports. > Or if it has a lot of dependencies, or if you have a > follow-up advice, please let us us know. Not more than mentioned before. Thomas
