From: Trond Myklebust trondmy@gmail.com
commit 387122478775be5d9816c34aa29de53d0b926835 upstream.
When comparing two 'struct cred' for equality w.r.t. behaviour under filesystem access, we need to use cred_fscmp().
Fixes: a52458b48af1 ("NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'.") Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com Signed-off-by: Anna Schumaker Anna.Schumaker@Netapp.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- fs/nfs/pnfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1425,7 +1425,7 @@ retry: /* lo ref dropped in pnfs_roc_release() */ layoutreturn = pnfs_prepare_layoutreturn(lo, &stateid, &iomode); /* If the creds don't match, we can't compound the layoutreturn */ - if (!layoutreturn || cred != lo->plh_lc_cred) + if (!layoutreturn || cred_fscmp(cred, lo->plh_lc_cred) != 0) goto out_noroc;
roc = layoutreturn;