NFSv4.1: Fix another refcount issue in pnfs_find_alloc_layout

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 8 insertions, 7 deletions

diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index d737557747b9..fe9968a62cad 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -907,18 +907,19 @@ pnfs_find_alloc_layout(struct inode *ino,
 
         dprintk("%s Begin ino=%p layout=%p\n", __func__, ino, nfsi->layout);
 
-        if (nfsi->layout) {
-                pnfs_get_layout_hdr(nfsi->layout);
-                return nfsi->layout;
-        }
+        if (nfsi->layout != NULL)
+                goto out_existing;
         spin_unlock(&ino->i_lock);
         new = alloc_init_layout_hdr(ino, ctx, gfp_flags);
         spin_lock(&ino->i_lock);
 
-        if (likely(nfsi->layout == NULL))       /* Won the race? */
+        if (likely(nfsi->layout == NULL)) {     /* Won the race? */
                 nfsi->layout = new;
-        else
-                pnfs_free_layout_hdr(new);
+                return new;
+        }
+        pnfs_free_layout_hdr(new);
+out_existing:
+        pnfs_get_layout_hdr(nfsi->layout);
         return nfsi->layout;
 }