[$] Filesystems and case-insensitivity

A recurring topic in filesystem-developer circles is on handling case-insensitive file names. Filesystems for other operating systems do so but, by and large, Linux filesystems do not. In the Kernel Summit track of the 2018 Linux Plumbers Conference (LPC), Gabriel Krisman Bertazi described his plans for making Linux filesystems encoding-aware as part of an effort to make ext4, and possibly other filesystems, interoperable with case-insensitivity in Android, Windows, and macOS.