f2fs crypto: add f2fs encryption facilities
Most of parts were copied from ext4, except: - add f2fs_restore_and_release_control_page which returns control page and restore control page - remove ext4_encrypted_zeroout() - remove sbi->s_file_encryption_mode & sbi->s_dir_encryption_mode - add f2fs_end_io_crypto_work for mpage_end_io Signed-off-by: Michael Halcrow <mhalcrow@google.com> Signed-off-by: Ildar Muslukhov <ildarm@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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fs/f2fs/crypto.c
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