Return-Path: linux-nfs-owner@vger.kernel.org Received: from bombadil.infradead.org ([198.137.202.9]:44983 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751331Ab3KTIYM (ORCPT ); Wed, 20 Nov 2013 03:24:12 -0500 Date: Wed, 20 Nov 2013 00:24:11 -0800 From: Christoph Hellwig To: bfields@fieldses.org Cc: linux-nfs@vger.kernel.org Subject: [PATCH] nfsd: start documenting some XDR handling functions Message-ID: <20131120082411.GA30072@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-nfs-owner@vger.kernel.org List-ID: Signed-off-by: Christoph Hellwig diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index fc10dd7..9423522 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -193,6 +193,15 @@ static int zero_clientid(clientid_t *clid) return (clid->cl_boot == 0) && (clid->cl_id == 0); } +/** + * defer_free - mark an allocation as deferred freed + * @argp: NFSv4 compound argument structure to be freed with + * @release: release callback to free @p, typically kfree() + * @p: pointer to be freed + * + * Marks @p to be freed when processing the compound operation + * described in @argp finishes. + */ static int defer_free(struct nfsd4_compoundargs *argp, void (*release)(const void *), void *p) @@ -209,6 +218,16 @@ defer_free(struct nfsd4_compoundargs *argp, return 0; } +/** + * savemem - duplicate a chunk of memory for later processing + * @argp: NFSv4 compound argument structure to be freed with + * @p: pointer to be duplicated + * @nbytes: length to be duplicated + * + * Returns a pointer to a copy of @nbytes bytes of memory at @p + * that are preserved until processing of the NFSv4 compound + * operation described by @argp finishes. + */ static char *savemem(struct nfsd4_compoundargs *argp, __be32 *p, int nbytes) { if (p == argp->tmp) {