This lays the ground work for enabling casefolding and encryption at the same time for ext4 and f2fs. A future set of patches will enable that functionality. These unify the highly similar dentry_operations that ext4 and f2fs both use for casefolding. In addition, they improve d_hash by not requiring a new string allocation. Daniel Rosenberg (4): unicode: Add utf8_casefold_hash fs: Add standard casefolding support f2fs: Use generic casefolding support ext4: Use generic casefolding support fs/ext4/dir.c | 64 +--------------------------- fs/ext4/ext4.h | 12 ------ fs/ext4/hash.c | 2 +- fs/ext4/namei.c | 20 ++++----- fs/ext4/super.c | 12 +++--- fs/f2fs/dir.c | 84 ++++-------------------------------- fs/f2fs/f2fs.h | 4 -- fs/f2fs/super.c | 10 ++--- fs/f2fs/sysfs.c | 10 +++-- fs/libfs.c | 94 +++++++++++++++++++++++++++++++++++++++++ fs/unicode/utf8-core.c | 23 +++++++++- include/linux/f2fs_fs.h | 3 -- include/linux/fs.h | 16 +++++++ include/linux/unicode.h | 3 ++ 14 files changed, 172 insertions(+), 185 deletions(-) -- 2.27.0.383.g050319c2ae-goog