index-pack: work around thread-unsafe pread()

diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index 36273dd6f0ebf3eab1062a0e24b9aa0c1834ce02..541667f1026d7ba62be8e029c31138d5661f65c7 100644 (file)
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -737,8 +737,6 @@ static void write_pack_file(void)
                        f = create_tmp_packfile(&pack_tmp_name);
 
                offset = write_pack_header(f, nr_remaining);
-               if (!offset)
-                       die_errno("unable to write pack header");
                nr_written = 0;
                for (; i < nr_objects; i++) {
                        struct object_entry *e = write_order[i];
@@ -2032,7 +2030,7 @@ static int add_ref_tag(const char *path, const unsigned char *sha1, int flag, vo
 {
        unsigned char peeled[20];
 
-       if (!prefixcmp(path, "refs/tags/") && /* is a tag? */
+       if (starts_with(path, "refs/tags/") && /* is a tag? */
            !peel_ref(path, peeled)        && /* peelable? */
            locate_object_entry(peeled))      /* object packed? */
                add_object_entry(sha1, OBJ_TAG, NULL, 0);