ceph: include preferred_osd in file layout virtual xattr

Signed-off-by: Sage Weil <sage@newdream.net>

1 files changed, 8 insertions, 1 deletions

diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index 8eaac04d1b87..65b3a84bbb2e 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -91,11 +91,18 @@ static struct ceph_vxattr_cb ceph_dir_vxattrs[] = {
 static size_t ceph_vxattrcb_layout(struct ceph_inode_info *ci, char *val,
                                    size_t size)
 {
-        return snprintf(val, size,
+        int ret;
+
+        ret = snprintf(val, size,
                 "chunk_bytes=%lld\nstripe_count=%lld\nobject_size=%lld\n",
                 (unsigned long long)ceph_file_layout_su(ci->i_layout),
                 (unsigned long long)ceph_file_layout_stripe_count(ci->i_layout),
                 (unsigned long long)ceph_file_layout_object_size(ci->i_layout));
+        if (ceph_file_layout_pg_preferred(ci->i_layout))
+                ret += snprintf(val + ret, size, "preferred_osd=%lld\n",
+                            (unsigned long long)ceph_file_layout_pg_preferred(
+                                    ci->i_layout));
+        return ret;
 }
 
 static struct ceph_vxattr_cb ceph_file_vxattrs[] = {