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 power subsystem will first freeze the filesystems before it goes freeze threads anyway. So them remaining freezable should not affect anything, right?
