On Wed, Feb 10, 2021 at 06:56:06PM +0000, Matthew Wilcox wrote: > On Wed, Feb 10, 2021 at 08:29:01AM -0800, Ira Weiny wrote: > > And I thought it was a good idea. Any file system development should have > > tests with DEBUG_VM which should cover Matthew's concern while not having the > > overhead in production. Seemed like a decent compromise? > > Why do you think these paths are only used during file system development? I can't guarantee it but right now most of the conversions I have worked on are in FS's. > They're definitely used by networking, by device drivers of all kinds > and they're probably even used by the graphics system. > > While developers *should* turn on DEBUG_VM during development, a > shockingly high percentage don't even turn on lockdep. Honestly, I don't feel strongly enough to argue it. Andrew? David? David this is going through your tree so would you feel more comfortable with 1 or the other? Ira
