LU-13693 lfs: check early for MDS_OPEN_DIRECTORY

[fs/lustre-release.git] / lustre / mdt / mdt_open.c

diff --git a/lustre/mdt/mdt_open.c b/lustre/mdt/mdt_open.c
index bb46c20..5aa5314 100644 (file)
--- a/lustre/mdt/mdt_open.c
+++ b/lustre/mdt/mdt_open.c
@@ -1529,6 +1529,14 @@ int mdt_reint_open(struct mdt_thread_info *info, struct mdt_lock_handle *lhc)
                                result = -MDT_EREMOTE_OPEN;
                         GOTO(out_child, result);
                } else if (mdt_object_exists(child)) {
+                       /* Check early for MDS_OPEN_DIRECTORY/O_DIRECTORY to
+                        * avoid opening regular files from lfs getstripe
+                        * since doing so breaks the leases used by lfs
+                        * mirror. See LU-13693. */
+                       if (open_flags & MDS_OPEN_DIRECTORY &&
+                           S_ISREG(lu_object_attr(&child->mot_obj)))
+                               GOTO(out_child, result = -ENOTDIR);
+
                        /* We have to get attr & LOV EA & HSM for this
                         * object. */
                        mdt_prep_ma_buf_from_rep(info, child, ma);