Hey, I've recently looked for some free space in struct inode again because of some exec kerfuffle we recently had and while my idea didn't turn into anything I noticed that we often waste bytes when using wait bit operations. So I set out to switch that to another mechanism that would allow us to free up bytes. So this is the attempt to turn i_state from an unsigned long into an u32 using the address of the i_state bit in the wait var event mechanism. This survives LTP, xfstests on various filesystems, and will-it-scale. It's possible I got it all wrong but I want to have the RFC out. --- --- base-commit: 01e603fb789c75b3a0c63bddd42a42a710da7a52 change-id: 20240820-work-i_state-4e34db39bcf8
