rpc: let xdr layer allocate gssproxy receieve pages
authorJ. Bruce Fields <bfields@redhat.com>
Fri, 23 Aug 2013 21:26:28 +0000 (17:26 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 1 Oct 2013 16:17:48 +0000 (09:17 -0700)
commitab2b9429c40a4083d675e15d79dc34f363096235
tree220d2bda6a36d0c9e8921e87494d62bf093fd380
parentfea655196e39b35ef0d6c5a6372edb53315031db
rpc: let xdr layer allocate gssproxy receieve pages

commit d4a516560fc96a9d486a9939bcb567e3fdce8f49 upstream.

In theory the linux cred in a gssproxy reply can include up to
NGROUPS_MAX data, 256K of data.  In the common case we expect it to be
shorter.  So do as the nfsv3 ACL code does and let the xdr code allocate
the pages as they come in, instead of allocating a lot of pages that
won't typically be used.

Tested-by: Simo Sorce <simo@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/sunrpc/auth_gss/gss_rpc_upcall.c