# HG changeset patch
# User mpm@selenic.com
# Date 1120149862 28800
# Node ID 0e9234a1a3f6ca9ab6fd5b1b4e4c4ff80ecfb37f
# Parent  c5b8ed036433542282ed1283254f7e1f5cea61a9
Hashing speed-up

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hashing speed-up

- From Chris Mason

manifest hash: c10091676647015b907a3ddce4dc629cb485de36
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.0 (GNU/Linux)

iD8DBQFCxCFmywK+sNU5EO8RAjiEAJ98eBaomWIUtT7DAm5dCbcAOe1I7gCdFl/E
AvepXnn+tLC2Grk9et2sL3M=
=spZz
-----END PGP SIGNATURE-----


diff --git a/mercurial/revlog.py b/mercurial/revlog.py
--- a/mercurial/revlog.py
+++ b/mercurial/revlog.py
@@ -37,7 +37,10 @@ def decompress(bin):
 def hash(text, p1, p2):
     l = [p1, p2]
     l.sort()
-    return sha.sha(l[0] + l[1] + text).digest()
+    s = sha.new(l[0])
+    s.update(l[1])
+    s.update(text)
+    return s.digest()
 
 nullid = "\0" * 20
 indexformat = ">4l20s20s20s"