pNFS: Clear NFS_LAYOUT_RETURN_REQUESTED when invalidating the layout stateid
authorTrond Myklebust <trond.myklebust@primarydata.com>
Mon, 14 Nov 2016 19:34:18 +0000 (14:34 -0500)
committerTrond Myklebust <trond.myklebust@primarydata.com>
Thu, 1 Dec 2016 22:21:39 +0000 (17:21 -0500)
We must ensure that we don't schedule a layoutreturn if the layout stateid
has been marked as invalid.

Fixes: 2a59a0411671e ("pNFS: Fix pnfs_set_layout_stateid() to clear...")
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Cc: stable@vger.kernel.org # v4.8+
fs/nfs/pnfs.c

index 09bbb07d0494b2acdee241cfa72af48e509bd444..d4e06b7459f4c74f7f2049891c20734c5b1954e3 100644 (file)
@@ -299,6 +299,14 @@ pnfs_put_layout_hdr(struct pnfs_layout_hdr *lo)
        }
 }
 
+static void
+pnfs_clear_layoutreturn_info(struct pnfs_layout_hdr *lo)
+{
+       lo->plh_return_iomode = 0;
+       lo->plh_return_seq = 0;
+       clear_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags);
+}
+
 /*
  * Mark a pnfs_layout_hdr and all associated layout segments as invalid
  *
@@ -317,6 +325,7 @@ pnfs_mark_layout_stateid_invalid(struct pnfs_layout_hdr *lo,
        };
 
        set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);
+       pnfs_clear_layoutreturn_info(lo);
        return pnfs_mark_matching_lsegs_invalid(lo, lseg_list, &range, 0);
 }
 
@@ -818,14 +827,6 @@ pnfs_destroy_all_layouts(struct nfs_client *clp)
        pnfs_destroy_layouts_byclid(clp, false);
 }
 
-static void
-pnfs_clear_layoutreturn_info(struct pnfs_layout_hdr *lo)
-{
-       lo->plh_return_iomode = 0;
-       lo->plh_return_seq = 0;
-       clear_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags);
-}
-
 /* update lo->plh_stateid with new if is more recent */
 void
 pnfs_set_layout_stateid(struct pnfs_layout_hdr *lo, const nfs4_stateid *new,