pack-objects: equal objects in size should delta against newer objects

diff --git a/Documentation/howto/using-topic-branches.txt b/Documentation/howto/using-topic-branches.txt
index 4698abe46bff0b878dcfcd05771f5760483b4278..2c98194cb84d34bbcb5f3c0bc989728e46f7f9d3 100644 (file)
--- a/Documentation/howto/using-topic-branches.txt
+++ b/Documentation/howto/using-topic-branches.txt
@@ -9,7 +9,7 @@ GIT as a Linux subsystem maintainer.
 
 -Tony
 
-Last updated w.r.t. GIT 0.99.9f
+Last updated w.r.t. GIT 1.1
 
 Linux subsystem maintenance using GIT
 -------------------------------------
@@ -31,7 +31,7 @@ test tree and then pull to the release tree as that would leave trivial
 patches blocked in the test tree waiting for complex changes to accumulate
 enough test time to graduate.
 
-Back in the BitKeeper days I achieved this my creating small forests of
+Back in the BitKeeper days I achieved this by creating small forests of
 temporary trees, one tree for each logical grouping of patches, and then
 pulling changes from these trees first to the test tree, and then to the
 release tree.  At first I replicated this in GIT, but then I realised
@@ -42,7 +42,7 @@ So here is the step-by-step guide how this all works for me.
 
 First create your work tree by cloning Linus's public tree:
 
- $ git clone rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git work
+ $ git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git work
 
 Change directory into the cloned tree you just created
 
@@ -52,7 +52,7 @@ Set up a remotes file so that you can fetch the latest from Linus' master
 branch into a local branch named "linus":
 
  $ cat > .git/remotes/linus
- URL: rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
+ URL: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
  Pull: master:linus
  ^D
 
@@ -92,6 +92,14 @@ These can be easily kept up to date by merging from the "linus" branch:
  $ git checkout test && git merge "Auto-update from upstream" test linus
  $ git checkout release && git merge "Auto-update from upstream" release linus
 
+Important note!  If you have any local changes in these branches, then
+this merge will create a commit object in the history (with no local
+changes git will simply do a "Fast forward" merge).  Many people dislike
+the "noise" that this creates in the Linux history, so you should avoid
+doing this capriciously in the "release" branch, as these noisy commits
+will become part of the permanent history when you ask Linus to pull
+from the release branch.
+
 Set up so that you can push upstream to your public tree (you need to
 log-in to the remote system and create an empty tree there before the
 first push).