fscrypt: make fscrypt_operations.key_prefix a string
authorEric Biggers <ebiggers@google.com>
Thu, 5 Jan 2017 21:51:18 +0000 (13:51 -0800)
committerTheodore Ts'o <tytso@mit.edu>
Sun, 8 Jan 2017 06:03:41 +0000 (01:03 -0500)
commita5d431eff2e0bb22156897435aa277ddc96074f7
tree21fc94db3331336db3fd7bce15820907d6da5261
parentf099d616dd689d27b08dec95d0b6f1f302cf8ec4
fscrypt: make fscrypt_operations.key_prefix a string

There was an unnecessary amount of complexity around requesting the
filesystem-specific key prefix.  It was unclear why; perhaps it was
envisioned that different instances of the same filesystem type could
use different key prefixes, or that key prefixes could be binary.
However, neither of those things were implemented or really make sense
at all.  So simplify the code by making key_prefix a const char *.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
fs/crypto/keyinfo.c
fs/ext4/ext4.h
fs/ext4/super.c
fs/f2fs/f2fs.h
fs/f2fs/super.c
fs/ubifs/crypto.c
include/linux/fscrypto.h