LU-4691 lmv: honor MDT index when creating volatile file

[fs/lustre-release.git] / lustre / llite / dir.c

diff --git a/lustre/llite/dir.c b/lustre/llite/dir.c
index 3fcaa6b..7a761b2 100644 (file)
--- a/lustre/llite/dir.c
+++ b/lustre/llite/dir.c
@@ -1650,8 +1650,25 @@ out_rmdir:
                 rc = copy_and_ioctl(cmd, sbi->ll_md_exp, (void *)arg,
                                     sizeof(struct ioc_changelog));
                 RETURN(rc);
-        case OBD_IOC_FID2PATH:
+       case OBD_IOC_FID2PATH:
                RETURN(ll_fid2path(inode, (void *)arg));
+       case LL_IOC_FID2MDTIDX: {
+               struct obd_export *exp = ll_i2mdexp(inode);
+               struct lu_fid     fid;
+               __u32             index;
+
+               if (copy_from_user(&fid, (const struct lu_fid __user *)arg,
+                                  sizeof(fid)))
+                       RETURN(-EFAULT);
+
+               /* Call mdc_iocontrol */
+               rc = obd_iocontrol(LL_IOC_FID2MDTIDX, exp, sizeof(fid), &fid,
+                                  &index);
+               if (rc != 0)
+                       RETURN(rc);
+
+               RETURN(index);
+       }
        case LL_IOC_HSM_REQUEST: {
                struct hsm_user_request *hur;
                ssize_t                  totalsize;