I using linux mainline kernel on android. https://github.com/youling257/android-mainline/commits/6.4 https://github.com/youling257/android-mainline/commits/6.3 "ext4: Stop providing .writepage hook" cause some android app unable to read storage/emulated/0 files, i need to say android esdfs file system storage/emulated is ext4 data/media bind mount. I want to ask, why android storage/emulated need .writepage hook?
