LU-2430 mdd: add lfs mv to migrate inode.

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

diff --git a/lustre/llite/dir.c b/lustre/llite/dir.c
index 6a1e3c5..27f23e4 100644 (file)
--- a/lustre/llite/dir.c
+++ b/lustre/llite/dir.c
@@ -579,6 +579,7 @@ int ll_dir_getstripe(struct inode *inode, void **plmm, int *plmm_size,
                        lustre_swab_lov_user_md_v3((struct lov_user_md_v3 *)lmm);
                break;
        case LMV_MAGIC:
+       case LMV_MAGIC_MIGRATE:
                if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC))
                        lustre_swab_lmv_mds_md((union lmv_mds_md *)lmm);
                break;
@@ -597,8 +598,7 @@ out:
        return rc;
 }
 
-static int ll_get_mdt_idx_by_fid(struct ll_sb_info *sbi,
-                                const struct lu_fid *fid)
+int ll_get_mdt_idx_by_fid(struct ll_sb_info *sbi, const struct lu_fid *fid)
 {
        struct md_op_data       *op_data;
        int                     rc;
@@ -1739,6 +1739,38 @@ out_rmdir:
                OBD_FREE_PTR(copy);
                RETURN(rc);
        }
+       case LL_IOC_MIGRATE: {
+               char            *buf = NULL;
+               const char      *filename;
+               int             namelen = 0;
+               int             len;
+               int             rc;
+               int             mdtidx;
+
+               rc = obd_ioctl_getdata(&buf, &len, (void __user *)arg);
+               if (rc < 0)
+                       RETURN(rc);
+
+               data = (struct obd_ioctl_data *)buf;
+               if (data->ioc_inlbuf1 == NULL || data->ioc_inlbuf2 == NULL ||
+                   data->ioc_inllen1 == 0 || data->ioc_inllen2 == 0)
+                       GOTO(migrate_free, rc = -EINVAL);
+
+               filename = data->ioc_inlbuf1;
+               namelen = data->ioc_inllen1;
+               if (namelen < 1)
+                       GOTO(migrate_free, rc = -EINVAL);
+
+               if (data->ioc_inllen2 != sizeof(mdtidx))
+                       GOTO(migrate_free, rc = -EINVAL);
+               mdtidx = *(int *)data->ioc_inlbuf2;
+
+               rc = ll_migrate(inode, file, mdtidx, filename, namelen);
+migrate_free:
+               obd_ioctl_freedata(buf, len);
+
+               RETURN(rc);
+       }
        default:
                RETURN(obd_iocontrol(cmd, sbi->ll_dt_exp, 0, NULL,
                                     (void *)arg));