tree 1ab172e639f055eddf80b6e679ba07445625e8c9
parent 57e5055b0a5e33267b8be366ee52ce5cdc239bc7
author Jaegeuk Kim <jaegeuk@kernel.org> 1429658627 -0700
committer Jaegeuk Kim <jaegeuk@kernel.org> 1432852909 -0700

f2fs crypto: add encryption key management facilities

This patch copies from encrypt_key.c in ext4, and modifies for f2fs.

Use GFP_NOFS, since _f2fs_get_encryption_info is called under f2fs_lock_op.

Signed-off-by: Michael Halcrow <mhalcrow@google.com>
Signed-off-by: Ildar Muslukhov <muslukhovi@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>