On Tue, Apr 01, 2025 at 04:40:33PM +0200, Christian Brauner wrote: > On Tue, Apr 01, 2025 at 04:14:07PM +0200, Peter Zijlstra wrote: > > On Tue, Apr 01, 2025 at 02:32:45AM +0200, Christian Brauner wrote: > > > The whole shebang can also be found at: > > > https://web.git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git/log/?h=work.freeze > > > > > > I know nothing about power or hibernation. I've tested it as best as I > > > could. Works for me (TM). > > > > > > I need to catch some actual sleep now... > > > > > > --- > > > > > > Now all the pieces are in place to actually allow the power subsystem to > > > freeze/thaw filesystems during suspend/resume. Filesystems are only > > > frozen and thawed if the power subsystem does actually own the freeze. > > > > Urgh, I was relying on all kthreads to be freezable for live-patching: > > > > https://lkml.kernel.org/r/20250324134909.GA14718@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx > > > > So I understand the problem with freezing filesystems, but can't we > > leave the TASK_FREEZABLE in the kthreads? The way I understand it, the > > Yeah, we can. > > > power subsystem will first freeze the filesystems before it goes freeze > > threads anyway. So them remaining freezable should not affect anything, > > right? > > Yes. I've dropped the other patches. I've discussed this later > downthread with Jan. Thanks!
