[tip:core/rcu] rcutorture: Note diffs from git commits

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Commit-ID:  8be7f505f9f04924025b568e5f135d9b082dfc1d
Gitweb:     http://git.kernel.org/tip/8be7f505f9f04924025b568e5f135d9b082dfc1d
Author:     Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
AuthorDate: Mon, 24 Mar 2014 13:15:49 -0700
Committer:  Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Wed, 14 May 2014 09:46:25 -0700

rcutorture: Note diffs from git commits

The current scripting only keeps track of the git SHA-1 of the current
HEAD.  This can cause confusion in cases where testing ran in a git
tree where changes had not yet been checked in.  This commit therefore
also records the output of "git diff HEAD" to provide the information
needed to reconstruct the source tree that was tested.

Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
---
 tools/testing/selftests/rcutorture/bin/kvm.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index 468d92f..40285c5 100644
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -276,6 +276,10 @@ if test -d .git
 then
 	git status >> $resdir/$ds/testid.txt
 	git rev-parse HEAD >> $resdir/$ds/testid.txt
+	if ! git diff HEAD > $T/git-diff 2>&1
+	then
+		cp $T/git-diff $resdir/$ds
+	fi
 fi
 ___EOF___
 awk < $T/cfgcpu.pack \
--
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