RFC patch, 3 partspull: warning improvements part 2

diff --git a/Documentation/git-pull.txt b/Documentation/git-pull.txt
index 5c3fb67c01..e89d391b3b 100644
--- a/Documentation/git-pull.txt
+++ b/Documentation/git-pull.txt
@@ -41,16 +41,41 @@ Assume the following history exists and the current branch is
 ------------
 	  A---B---C master on origin
 	 /
-    D---E---F---G master
+    D---E master
 	^
 	origin/master in your repository
 ------------
 
 Then "`git pull`" will fetch and replay the changes from the remote
 `master` branch since it diverged from the local `master` (i.e., `E`)
-until its current commit (`C`) on top of `master` and record the
-result in a new commit along with the names of the two parent commits
-and a log message from the user describing the changes.
+until its current commit (`C`) on top of `master`.
+
+After the remote changes have been synchronized, the local `master` will
+be fast-forwarded to the same commit as the remote one, therefore
+creating a linear history.
+
+------------
+    D---E---A---B---C master, origin/master
+------------
+
+However, a non-fast-forward case looks very different:
+
+------------
+	  A---B---C origin/master
+	 /
+    D---E---F---G master
+------------
+
+If there are additional changes in the local `master`, it's
+not possible to fast-forward, so a decision must be made how to
+synchronize the local, and remote brances.
+
+In these situations `git pull` will warn you about your possible
+options, which are either merge, or rebase. However, by default it will
+continue doing a merge.
+
+A merge will create a new commit with two parent commits (`G` and `C`)
+and a log message describing the changes, which you can edit.
 
 ------------
 	  A---B---C origin/master
@@ -58,8 +83,11 @@ and a log message from the user describing the changes.
     D---E---F---G---H master
 ------------
 
+Once the merge commit is created (`H`), your local `master` branch has
+incorporated the changes of the remote `master` branch.
+
 See linkgit:git-merge[1] for details, including how conflicts
-are presented and handled.
+are presented and handled, and also linkgit:git-rebase[1].
 
 In Git 1.7.0 or later, to cancel a conflicting merge, use
 `git reset --merge`.  *Warning*: In older versions of Git, running 'git pull'

diff --git a/builtin/pull.c b/builtin/pull.c
index e8927fc2ff..a766d9762c 100644
--- a/builtin/pull.c
+++ b/builtin/pull.c
@@ -927,18 +927,20 @@ static int get_can_ff(struct object_id *orig_head, struct object_id *orig_merge_
 
 static void show_advice_pull_non_ff(void)
 {
-	advise(_("Pulling without specifying how to reconcile divergent branches is\n"
-		 "discouraged. You can squelch this message by running one of the following\n"
-		 "commands sometime before your next pull:\n"
+	advise(_("Pulling without specifying how to reconcile divergent branches is discouraged;\n"
+		 "you need to specify if you want a merge, or a rebase.\n"
 		 "\n"
-		 "  git config pull.rebase false  # merge (the default strategy)\n"
-		 "  git config pull.rebase true   # rebase\n"
-		 "  git config pull.ff only       # fast-forward only\n"
+		 "  git pull --no-rebase # the default (merge)\n"
+		 "  git pull --rebase\n"
 		 "\n"
-		 "You can replace \"git config\" with \"git config --global\" to set a default\n"
-		 "preference for all repositories. You can also pass --rebase, --no-rebase,\n"
-		 "or --ff-only on the command line to override the configured default per\n"
-		 "invocation.\n"));
+		 "You can squelch this message by running one of the following commands:\n"
+		 "\n"
+		 "  git config --global pull.rebase false  # merge\n"
+		 "  git config --global pull.rebase true   # rebase\n"
+		 "  git config --global pull.ff only       # fast-forward only\n"
+		 "\n"
+		 "If unsure, run \"git pull --no-rebase\".\n"
+		 "Read \"git pull --help\" for more information."));
 }
 
 int cmd_pull(int argc, const char **argv, const char *prefix)

diff --git a/builtin/pull.c b/builtin/pull.c
index a766d9762c..42cd6c38d8 100644
--- a/builtin/pull.c
+++ b/builtin/pull.c
@@ -949,7 +949,6 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
 	struct oid_array merge_heads = OID_ARRAY_INIT;
 	struct object_id orig_head, curr_head;
 	struct object_id rebase_fork_point;
-	int autostash;
 	int rebase_unspecified = 0;
 	int can_ff;
 
@@ -984,8 +983,8 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
 	if (get_oid("HEAD", &orig_head))
 		oidclr(&orig_head);
 
-	autostash = config_autostash;
 	if (opt_rebase) {
+		int autostash = config_autostash;
 		if (opt_autostash != -1)
 			autostash = opt_autostash;
 
@@ -1067,13 +1066,12 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
 		     recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND) &&
 		    submodule_touches_in_range(the_repository, &upstream, &curr_head))
 			die(_("cannot rebase with locally recorded submodule modifications"));
-		if (!autostash) {
-			if (can_ff) {
-				/* we can fast-forward this without invoking rebase */
-				opt_ff = "--ff-only";
-				ran_ff = 1;
-				ret = run_merge();
-			}
+
+		if (can_ff) {
+			/* we can fast-forward this without invoking rebase */
+			opt_ff = "--ff-only";
+			ran_ff = 1;
+			ret = run_merge();
 		}
 		if (!ran_ff)
 			ret = run_rebase(&newbase, &upstream);