Return-Path: linux-nfs-owner@vger.kernel.org Received: from mx1.redhat.com ([209.132.183.28]:34109 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762240Ab3DBVqK (ORCPT ); Tue, 2 Apr 2013 17:46:10 -0400 From: Steve Dickson To: Trond Myklebust , "J. Bruce Fields" , "David P. Quigley" Cc: Linux NFS list , Linux FS devel list , Linux Security List , SELinux List Subject: [PATCH 07/19] NFSv4: Extend fattr bitmaps to support all 3 words Date: Tue, 2 Apr 2013 17:45:48 -0400 Message-Id: <1364939160-20874-8-git-send-email-SteveD@redhat.com> In-Reply-To: <1364939160-20874-1-git-send-email-SteveD@redhat.com> References: <1364939160-20874-1-git-send-email-SteveD@redhat.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: From: David Quigley The fattr handling bitmap code only uses the first two fattr words sofar. This patch adds the 3rd word to being sent but doesn't populate it yet. Signed-off-by: Miguel Rodel Felipe Signed-off-by: Phua Eu Gene Signed-off-by: Khin Mi Mi Aung --- fs/nfs/nfs4_fs.h | 6 +++--- fs/nfs/nfs4proc.c | 10 +++++----- fs/nfs/nfs4xdr.c | 20 ++++++++++++-------- fs/nfs/super.c | 1 + include/linux/nfs_fs_sb.h | 2 +- 5 files changed, 22 insertions(+), 17 deletions(-) diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 944c9a5..1de30a8 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -295,10 +295,10 @@ is_ds_client(struct nfs_client *clp) extern const struct nfs4_minor_version_ops *nfs_v4_minor_ops[]; extern const u32 nfs4_fattr_bitmap[3]; -extern const u32 nfs4_statfs_bitmap[2]; -extern const u32 nfs4_pathconf_bitmap[2]; +extern const u32 nfs4_statfs_bitmap[3]; +extern const u32 nfs4_pathconf_bitmap[3]; extern const u32 nfs4_fsinfo_bitmap[3]; -extern const u32 nfs4_fs_locations_bitmap[2]; +extern const u32 nfs4_fs_locations_bitmap[3]; void nfs4_free_client(struct nfs_client *); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 26431cf..a975962 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -159,7 +159,7 @@ static const u32 nfs4_open_noattr_bitmap[3] = { | FATTR4_WORD0_FILEID, }; -const u32 nfs4_statfs_bitmap[2] = { +const u32 nfs4_statfs_bitmap[3] = { FATTR4_WORD0_FILES_AVAIL | FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL, @@ -168,7 +168,7 @@ const u32 nfs4_statfs_bitmap[2] = { | FATTR4_WORD1_SPACE_TOTAL }; -const u32 nfs4_pathconf_bitmap[2] = { +const u32 nfs4_pathconf_bitmap[3] = { FATTR4_WORD0_MAXLINK | FATTR4_WORD0_MAXNAME, 0 @@ -183,7 +183,7 @@ const u32 nfs4_fsinfo_bitmap[3] = { FATTR4_WORD0_MAXFILESIZE FATTR4_WORD2_LAYOUT_BLKSIZE }; -const u32 nfs4_fs_locations_bitmap[2] = { +const u32 nfs4_fs_locations_bitmap[3] = { FATTR4_WORD0_TYPE | FATTR4_WORD0_CHANGE | FATTR4_WORD0_SIZE @@ -199,7 +199,7 @@ const u32 nfs4_fs_locations_bitmap[2] = { | FATTR4_WORD1_TIME_ACCESS | FATTR4_WORD1_TIME_METADATA | FATTR4_WORD1_TIME_MODIFY - | FATTR4_WORD1_MOUNTED_ON_FILEID + | FATTR4_WORD1_MOUNTED_ON_FILEID, }; static void nfs4_setup_readdir(u64 cookie, __be32 *verifier, struct dentry *dentry, @@ -5135,7 +5135,7 @@ static int _nfs4_proc_fs_locations(struct rpc_clnt *client, struct inode *dir, struct page *page) { struct nfs_server *server = NFS_SERVER(dir); - u32 bitmask[2] = { + u32 bitmask[3] = { [0] = FATTR4_WORD0_FSID | FATTR4_WORD0_FS_LOCATIONS, }; struct nfs4_fs_locations_arg args = { diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index e3edda5..4fa0bf1 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -983,15 +983,16 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const int len; uint32_t bmval0 = 0; uint32_t bmval1 = 0; + uint32_t bmval2 = 0; /* * We reserve enough space to write the entire attribute buffer at once. * In the worst-case, this would be - * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) - * = 36 bytes, plus any contribution from variable-length fields + * 16(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) + * = 40 bytes, plus any contribution from variable-length fields * such as owner/group. */ - len = 16; + len = 20; /* Sigh */ if (iap->ia_valid & ATTR_SIZE) @@ -1035,9 +1036,9 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const * We write the bitmap length now, but leave the bitmap and the attribute * buffer length to be backfilled at the end of this routine. */ - *p++ = cpu_to_be32(2); + *p++ = cpu_to_be32(3); q = p; - p += 3; + p += 4; if (iap->ia_valid & ATTR_SIZE) { bmval0 |= FATTR4_WORD0_SIZE; @@ -1086,9 +1087,10 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const len, ((char *)p - (char *)q) + 4); BUG(); } - len = (char *)p - (char *)q - 12; + len = (char *)p - (char *)q - 16; *q++ = htonl(bmval0); *q++ = htonl(bmval1); + *q++ = htonl(bmval2); *q = htonl(len); /* out: */ @@ -1194,8 +1196,10 @@ encode_getattr_three(struct xdr_stream *xdr, static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) { - encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], - bitmask[1] & nfs4_fattr_bitmap[1], hdr); + encode_getattr_three(xdr, bitmask[0] & nfs4_fattr_bitmap[0], + bitmask[1] & nfs4_fattr_bitmap[1], + bitmask[2] & nfs4_fattr_bitmap[2], + hdr); } static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask, diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 56e9963..0d94b27d 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -832,6 +832,7 @@ int nfs_show_stats(struct seq_file *m, struct dentry *root) seq_printf(m, "\n\tnfsv4:\t"); seq_printf(m, "bm0=0x%x", nfss->attr_bitmask[0]); seq_printf(m, ",bm1=0x%x", nfss->attr_bitmask[1]); + seq_printf(m, ",bm2=0x%x", nfss->attr_bitmask[2]); seq_printf(m, ",acl=0x%x", nfss->acl_bitmask); show_sessions(m, nfss); show_pnfs(m, nfss); diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index d507357..e6ed3c2 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -145,7 +145,7 @@ struct nfs_server { u32 attr_bitmask[3];/* V4 bitmask representing the set of attributes supported on this filesystem */ - u32 cache_consistency_bitmask[2]; + u32 cache_consistency_bitmask[3]; /* V4 bitmask representing the subset of change attribute, size, ctime and mtime attributes supported by -- 1.8.1.4