On Fri, Nov 15, 2019 at 03:56:38PM +0100, Jan Kara wrote: > With some effort, we could even shrink struct buffer_head from 104 bytes > (on x86_64) to 96 bytes but I don't think that effort is worth it (I'd find > it better use of time to actually work on getting rid of buffer heads > completely). Is that really realistic? All aside from the very large number of file systems which use buffer_heads that would have to be reworked, the concept of buffer heads is pretty fundamental to how jbd2 is architected. - Ted
