From 8e3a6f16ba5874b69968cd450334829262513fd1 Mon Sep 17 00:00:00 2001
From: Trevor Highland <trevor.highland@gmail.com>
Date: Wed, 6 Feb 2008 01:38:33 -0800
Subject: eCryptfs: set inode key only once per crypto operation

There is no need to keep re-setting the same key for any given eCryptfs inode.
This patch optimizes the use of the crypto API and helps performance a bit.

Signed-off-by: Trevor Highland <trevor.highland@gmail.com>
Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ecryptfs/ecryptfs_kernel.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'fs/ecryptfs/ecryptfs_kernel.h')

diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index 3d637e9ca36a..2a6103954c1e 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -234,6 +234,7 @@ struct ecryptfs_crypt_stat {
 #define ECRYPTFS_KEY_VALID          0x00000080
 #define ECRYPTFS_METADATA_IN_XATTR  0x00000100
 #define ECRYPTFS_VIEW_AS_ENCRYPTED  0x00000200
+#define ECRYPTFS_KEY_SET            0x00000400
 	u32 flags;
 	unsigned int file_version;
 	size_t iv_bytes;
-- 
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