From 1d0a442405e8fc7a0742a8f8db2ea0f874f750a5 Mon Sep 17 00:00:00 2001
From: Jakob Unterwurzacher
Date: Sun, 29 Nov 2015 19:57:48 +0100
Subject: OpenDir performance: Read DirIV once and reuse it for all names

Formerly, we called decryptPath for every name.
That resulted in a directory walk that reads in all diriv files
on the way.

Massive improvement for RM and LS (check performance.txt for details)

VERSION         UNTAR   RM   LS
v0.4               48    5    1.5
v0.5-rc1           56   19    7
v0.5-rc1-1         54    9    4.1   <---- THIS VERSION
---
 cryptfs/cryptfs_names.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'cryptfs/cryptfs_names.go')

diff --git a/cryptfs/cryptfs_names.go b/cryptfs/cryptfs_names.go
index 2a5f158..8f8486b 100644
--- a/cryptfs/cryptfs_names.go
+++ b/cryptfs/cryptfs_names.go
@@ -17,7 +17,7 @@ const (
 )
 
 // DecryptName - decrypt base64-encoded encrypted filename "cipherName"
-func (be *CryptFS) decryptName(cipherName string, iv []byte) (string, error) {
+func (be *CryptFS) DecryptName(cipherName string, iv []byte) (string, error) {
 
 	// Make sure relative symlinks still work after encryption
 	// by passing these through unchanged
@@ -91,7 +91,7 @@ func (be *CryptFS) TranslatePathZeroIV(path string, op int) (string, error) {
 		if op == OpEncrypt {
 			newPart = be.encryptName(part, zeroIV)
 		} else {
-			newPart, err = be.decryptName(part, zeroIV)
+			newPart, err = be.DecryptName(part, zeroIV)
 			if err != nil {
 				return "", err
 			}
-- 
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