LU-13687 llite: return -ENODATA if no default layout

Don't return -ENOENT if fetching the default layout from the root
directory fails.  Otherwise, "lfs find" will print an error message
for every directory scanned in the filesystem:

     lfs find: /myth/tmp does not exist: No such file or directory

Fixes: 3e8fa8a7396c ("LU-11656 llite: fetch default layout for a directory")
Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Change-Id: I5e082c5d425c44ca7770d3b24cbb13bb7d2540e5
Reviewed-on: https://review.whamcloud.com/39200
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Jian Yu <yujian@whamcloud.com>
Reviewed-by: Lai Siyao <lai.siyao@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Oleg Drokin <green@whamcloud.com>

diff --git a/lustre/llite/dir.c b/lustre/llite/dir.c
index efc1dbd..7b39aa0 100644 (file)
--- a/lustre/llite/dir.c
+++ b/lustre/llite/dir.c
@@ -750,10 +750,13 @@ int ll_dir_getstripe_default(struct inode *inode, void **plmm, int *plmm_size,
        rc = ll_dir_get_default_layout(inode, (void **)&lmm, &lmm_size,
                                       &req, valid, 0);
        if (rc == -ENODATA && !fid_is_root(ll_inode2fid(inode)) &&
        rc = ll_dir_get_default_layout(inode, (void **)&lmm, &lmm_size,
                                       &req, valid, 0);
        if (rc == -ENODATA && !fid_is_root(ll_inode2fid(inode)) &&

-           !(valid & (OBD_MD_MEA|OBD_MD_DEFAULT_MEA)) && root_request != NULL)
-               rc = ll_dir_get_default_layout(inode, (void **)&lmm, &lmm_size,
-                                              &root_req, valid,
-                                              GET_DEFAULT_LAYOUT_ROOT);
+           !(valid & (OBD_MD_MEA|OBD_MD_DEFAULT_MEA)) && root_request != NULL){
+               int rc2 = ll_dir_get_default_layout(inode, (void **)&lmm,
+                                                   &lmm_size, &root_req, valid,
+                                                   GET_DEFAULT_LAYOUT_ROOT);
+               if (rc2 == 0)
+                       rc = 0;
+       }

 
        *plmm = lmm;
        *plmm_size = lmm_size;
 
        *plmm = lmm;
        *plmm_size = lmm_size;