write_ref_sha1(): only invalidate the loose ref cache

Since write_ref_sha1() can only write loose refs and cannot write
symbolic refs, there is no need for it to invalidate the packed ref
cache.

Suggested by: Martin Fick <mfick@codeaurora.org>
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/refs.c b/refs.c
index 2a21dc344338a4dc69fe9785e04b2f9829c24afc..a888cea56eb6c8142f4a31e9214bf349965f3d66 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -1534,7 +1534,7 @@ int write_ref_sha1(struct ref_lock *lock,
                unlock_ref(lock);
                return -1;
        }
-       invalidate_ref_cache(NULL);
+       clear_loose_ref_cache(get_ref_cache(NULL));
        if (log_ref_write(lock->ref_name, lock->old_sha1, sha1, logmsg) < 0 ||
            (strcmp(lock->ref_name, lock->orig_ref_name) &&
             log_ref_write(lock->orig_ref_name, lock->old_sha1, sha1, logmsg) < 0)) {