NFS: Fix potential race in nfs_fhget()

If we don't set the mode correctly in nfs_init_locked(), then there is
potential for a race with a second call to nfs_fhget that will cause
inode aliasing.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 52e7d6869e3b2445dc6417875b3c753edb681ecc..dda689d7a8a706862e21737cb5189ab175d976e1 100644 (file)
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -282,6 +282,7 @@ nfs_init_locked(struct inode *inode, void *opaque)
        struct nfs_fattr        *fattr = desc->fattr;
 
        set_nfs_fileid(inode, fattr->fileid);
+       inode->i_mode = fattr->mode;
        nfs_copy_fh(NFS_FH(inode), desc->fh);
        return 0;
 }