LU-11956 mdd: do not reset original lu_buf.lb_len

[fs/lustre-release.git] / lustre / mdd / mdd_dir.c

diff --git a/lustre/mdd/mdd_dir.c b/lustre/mdd/mdd_dir.c
index a8e4b60..d069874 100644 (file)
--- a/lustre/mdd/mdd_dir.c
+++ b/lustre/mdd/mdd_dir.c
@@ -3512,6 +3512,7 @@ static int mdd_iterate_xattrs(const struct lu_env *env,
        struct mdd_thread_info *info = mdd_env_info(env);
        char *xname;
        struct lu_buf list_xbuf;
+       struct lu_buf cbxbuf;
        struct lu_buf xbuf = { NULL };
        int list_xsize;
        int xlen;
@@ -3568,14 +3569,15 @@ static int mdd_iterate_xattrs(const struct lu_env *env,
                if (rc < 0)
                        GOTO(out, rc);
 
+               cbxbuf = xbuf;
 repeat:
-               rc = cb(env, tobj, &xbuf, xname, 0, handle);
+               rc = cb(env, tobj, &cbxbuf, xname, 0, handle);
                if (unlikely(rc == -ENOSPC &&
                             strcmp(xname, XATTR_NAME_LINK) == 0)) {
                        rc = linkea_overflow_shrink(
-                                       (struct linkea_data *)(xbuf.lb_buf));
+                                       (struct linkea_data *)(cbxbuf.lb_buf));
                        if (likely(rc > 0)) {
-                               xbuf.lb_len = rc;
+                               cbxbuf.lb_len = rc;
                                goto repeat;
                        }
                }