Hi all, Here's some new stuff for e2fsprogs 1.45! The first three patches in this series formalize the e2croncheck contrib script into an e2scrub command that takes a snapshot of an lvm volume and e2fscks the snapshot to see if there's any serious corruption on the volume; creates an e2scrub_all script to find eligible lvm volumes; and packages all this into a nice cron job or systemd timer service. The second half of the series enhances the e2fsprogs build system to allow us to take advantage of new compiler technologies. The first patch enables LTO, which can perform executable-wide code optimizations (particularly eliminating dead functions). The three patches after that enable the sanitizers for undefined behavior, memory access, and thread safety. With these sanitizers we can collect runtime reports about questionable C code, memory access problems, and thread safety problems (though at the moment e2fsprogs isn't heavily threaded). Questions? Comments? --D
