[PATCH 04/18] f2fs crypto: add f2fs encryption Kconfig

From: Jaegeuk Kim
Date: Sat May 09 2015 - 00:25:14 EST

This patch adds f2fs encryption config.

Signed-off-by: Michael Halcrow <mhalcrow@xxxxxxxxxx>
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
fs/f2fs/Kconfig | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)

diff --git a/fs/f2fs/Kconfig b/fs/f2fs/Kconfig
index 05f0f66..28f21fe 100644
--- a/fs/f2fs/Kconfig
+++ b/fs/f2fs/Kconfig
@@ -72,6 +72,24 @@ config F2FS_CHECK_FS

If you want to improve the performance, say N.

+ bool "F2FS Encryption"
+ depends on F2FS_FS
+ depends on F2FS_FS_XATTR
+ select CRYPTO_AES
+ select CRYPTO_CBC
+ select CRYPTO_ECB
+ select CRYPTO_XTS
+ select CRYPTO_CTS
+ select CRYPTO_SHA256
+ select KEYS
+ help
+ Enable encryption of f2fs files and directories. This
+ feature is similar to ecryptfs, but it is more memory
+ efficient since it avoids caching the encrypted and
+ decrypted pages in the page cache.
config F2FS_IO_TRACE
bool "F2FS IO tracer"
depends on F2FS_FS

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