From: Benny Halevy Subject: [PATCH v2 45/47] nfsd41: SUPPATTR_EXCLCREAT attribute Date: Sat, 28 Mar 2009 11:35:15 +0300 Message-ID: <1238229315-11675-1-git-send-email-bhalevy@panasas.com> References: <49CDDFC2.4070402@panasas.com> Cc: linux-nfs@vger.kernel.org, pnfs@linux-nfs.org To: " J. Bruce Fields" Return-path: Received: from gw-ca.panasas.com ([209.116.51.66]:1232 "EHLO laguna.int.panasas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754358AbZC1IfV (ORCPT ); Sat, 28 Mar 2009 04:35:21 -0400 In-Reply-To: <49CDDFC2.4070402@panasas.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: Return bitmask for supported EXCLUSIVE4_1 create attributes. Signed-off-by: Benny Halevy --- fs/nfsd/nfs4xdr.c | 7 ++++++- include/linux/nfs4.h | 2 ++ include/linux/nfsd/nfsd.h | 14 +++++++++++++- 3 files changed, 21 insertions(+), 2 deletions(-) diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 079626c..288332c 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -2154,7 +2154,12 @@ out_acl: } WRITE64(stat.ino); } - BUG_ON(bmval2); /* FIXME: not implemented yet */ + if (bmval2 & FATTR4_WORD2_SUPPATTR_EXCLCREAT) { + WRITE32(3); + WRITE32(NFSD_SUPPATTR_EXCLCREAT_WORD0); + WRITE32(NFSD_SUPPATTR_EXCLCREAT_WORD1); + WRITE32(NFSD_SUPPATTR_EXCLCREAT_WORD2); + } *attrlenp = htonl((char *)p - (char *)attrlenp - 4); *countp = p - buffer; diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h index a34683e..735c7d8 100644 --- a/include/linux/nfs4.h +++ b/include/linux/nfs4.h @@ -404,6 +404,8 @@ enum lock_type4 { #define FATTR4_WORD0_UNIQUE_HANDLES (1UL << 9) #define FATTR4_WORD0_LEASE_TIME (1UL << 10) #define FATTR4_WORD0_RDATTR_ERROR (1UL << 11) +/* Mandatory in NFSv4.1 */ +#define FATTR4_WORD2_SUPPATTR_EXCLCREAT (1UL << 11) /* Recommended Attributes */ #define FATTR4_WORD0_ACL (1UL << 12) diff --git a/include/linux/nfsd/nfsd.h b/include/linux/nfsd/nfsd.h index 3dccb76..b9e6682 100644 --- a/include/linux/nfsd/nfsd.h +++ b/include/linux/nfsd/nfsd.h @@ -374,7 +374,7 @@ extern struct timeval nfssvc_boot; NFSD4_SUPPORTED_ATTRS_WORD1 #define NFSD4_1_SUPPORTED_ATTRS_WORD2 \ - NFSD4_SUPPORTED_ATTRS_WORD2 + (NFSD4_SUPPORTED_ATTRS_WORD2 | FATTR4_WORD2_SUPPATTR_EXCLCREAT) #if defined(CONFIG_NFSD_V4_1) @@ -427,6 +427,18 @@ static inline u32 nfsd_suppattrs2(u32 minorversion) | FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET) #define NFSD_WRITEABLE_ATTRS_WORD2 0 +#define NFSD_SUPPATTR_EXCLCREAT_WORD0 \ + NFSD_WRITEABLE_ATTRS_WORD0 +/* + * we currently store the exclusive create verifier in the v_{a,m}time + * attributes so the client can't set these at create time using EXCLUSIVE4_1 + */ +#define NFSD_SUPPATTR_EXCLCREAT_WORD1 \ + (NFSD_WRITEABLE_ATTRS_WORD1 & \ + ~(FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET)) +#define NFSD_SUPPATTR_EXCLCREAT_WORD2 \ + NFSD_WRITEABLE_ATTRS_WORD2 + #endif /* CONFIG_NFSD_V4 */ #endif /* LINUX_NFSD_NFSD_H */ -- 1.6.2.1