Return-Path: linux-nfs-owner@vger.kernel.org Received: from casper.infradead.org ([85.118.1.10]:55217 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754132AbbAFQ3i (ORCPT ); Tue, 6 Jan 2015 11:29:38 -0500 From: Christoph Hellwig To: "J. Bruce Fields" Cc: Jeff Layton , linux-nfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com Subject: [PATCH 05/18] nfsd: add fh_fsid_match helper Date: Tue, 6 Jan 2015 17:28:28 +0100 Message-Id: <1420561721-9150-6-git-send-email-hch@lst.de> In-Reply-To: <1420561721-9150-1-git-send-email-hch@lst.de> References: <1420561721-9150-1-git-send-email-hch@lst.de> Sender: linux-nfs-owner@vger.kernel.org List-ID: Add a helper to check that the fsid parts of two file handles match. Signed-off-by: Christoph Hellwig --- fs/nfsd/nfsfh.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/fs/nfsd/nfsfh.h b/fs/nfsd/nfsfh.h index e24d954..84cae20 100644 --- a/fs/nfsd/nfsfh.h +++ b/fs/nfsd/nfsfh.h @@ -196,6 +196,15 @@ static inline bool fh_match(struct knfsd_fh *fh1, struct knfsd_fh *fh2) return true; } +static inline bool fh_fsid_match(struct knfsd_fh *fh1, struct knfsd_fh *fh2) +{ + if (fh1->fh_fsid_type != fh2->fh_fsid_type) + return false; + if (memcmp(fh1->fh_fsid, fh2->fh_fsid, key_len(fh1->fh_fsid_type) != 0)) + return false; + return true; +} + #ifdef CONFIG_NFSD_V3 /* * The wcc data stored in current_fh should be cleared -- 1.9.1