From: "J. Bruce Fields" <bfields@redhat.com>
To: linux-nfs@vger.kernel.org
Cc: Christoph Hellwig <hch@infradead.org>,
"J. Bruce Fields" <bfields@redhat.com>
Subject: [PATCH 50/52] nfsd4: kill WRITEMEM
Date: Thu, 22 May 2014 15:32:25 -0400 [thread overview]
Message-ID: <1400787148-25941-51-git-send-email-bfields@redhat.com> (raw)
In-Reply-To: <1400787148-25941-1-git-send-email-bfields@redhat.com>
From: "J. Bruce Fields" <bfields@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
fs/nfsd/nfs4xdr.c | 62 +++++++++++++++++++++++++------------------------------
1 file changed, 28 insertions(+), 34 deletions(-)
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 46fc861..2a5bd29 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1683,12 +1683,6 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
DECODE_TAIL;
}
-#define WRITEMEM(ptr,nbytes) do { if (nbytes > 0) { \
- *(p + XDR_QUADLEN(nbytes) -1) = 0; \
- memcpy(p, ptr, nbytes); \
- p += XDR_QUADLEN(nbytes); \
-}} while (0)
-
static void write32(__be32 **p, u32 n)
{
*(*p)++ = htonl(n);
@@ -1769,8 +1763,7 @@ static __be32 nfsd4_encode_components_esc(struct xdr_stream *xdr, char sep,
p = xdr_reserve_space(xdr, strlen + 4);
if (!p)
return nfserr_resource;
- *p++ = cpu_to_be32(strlen);
- WRITEMEM(str, strlen);
+ p = xdr_encode_opaque(p, str, strlen);
count++;
}
else
@@ -1865,8 +1858,7 @@ static __be32 nfsd4_encode_path(struct xdr_stream *xdr,
spin_unlock(&dentry->d_lock);
goto out_free;
}
- *p++ = cpu_to_be32(len);
- WRITEMEM(dentry->d_name.name, len);
+ p = xdr_encode_opaque(p, dentry->d_name.name, len);
dprintk("/%s", dentry->d_name.name);
spin_unlock(&dentry->d_lock);
dput(dentry);
@@ -2239,7 +2231,7 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
*p++ = cpu_to_be32(MINOR(stat.dev));
break;
case FSIDSOURCE_UUID:
- WRITEMEM(exp->ex_uuid, 16);
+ p = xdr_encode_opaque_fixed(p, exp->ex_uuid, 16);
break;
}
}
@@ -2326,8 +2318,8 @@ out_acl:
p = xdr_reserve_space(xdr, fhp->fh_handle.fh_size + 4);
if (!p)
goto out_resource;
- *p++ = cpu_to_be32(fhp->fh_handle.fh_size);
- WRITEMEM(&fhp->fh_handle.fh_base, fhp->fh_handle.fh_size);
+ p = xdr_encode_opaque(p, &fhp->fh_handle.fh_base,
+ fhp->fh_handle.fh_size);
}
if (bmval0 & FATTR4_WORD0_FILEID) {
p = xdr_reserve_space(xdr, 8);
@@ -2748,7 +2740,8 @@ nfsd4_encode_stateid(struct xdr_stream *xdr, stateid_t *sid)
if (!p)
return nfserr_resource;
*p++ = cpu_to_be32(sid->si_generation);
- WRITEMEM(&sid->si_opaque, sizeof(stateid_opaque_t));
+ p = xdr_encode_opaque_fixed(p, &sid->si_opaque,
+ sizeof(stateid_opaque_t));
return 0;
}
@@ -2777,7 +2770,8 @@ static __be32 nfsd4_encode_bind_conn_to_session(struct nfsd4_compoundres *resp,
p = xdr_reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 8);
if (!p)
return nfserr_resource;
- WRITEMEM(bcts->sessionid.data, NFS4_MAX_SESSIONID_LEN);
+ p = xdr_encode_opaque_fixed(p, bcts->sessionid.data,
+ NFS4_MAX_SESSIONID_LEN);
*p++ = cpu_to_be32(bcts->dir);
/* Sorry, we do not yet support RDMA over 4.1: */
*p++ = cpu_to_be32(0);
@@ -2807,7 +2801,8 @@ nfsd4_encode_commit(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_
p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE);
if (!p)
return nfserr_resource;
- WRITEMEM(commit->co_verf.data, NFS4_VERIFIER_SIZE);
+ p = xdr_encode_opaque_fixed(p, commit->co_verf.data,
+ NFS4_VERIFIER_SIZE);
}
return nfserr;
}
@@ -2858,8 +2853,7 @@ nfsd4_encode_getfh(struct nfsd4_compoundres *resp, __be32 nfserr, struct svc_fh
p = xdr_reserve_space(xdr, len + 4);
if (!p)
return nfserr_resource;
- *p++ = cpu_to_be32(len);
- WRITEMEM(&fhp->fh_handle.fh_base, len);
+ p = xdr_encode_opaque(p, &fhp->fh_handle.fh_base, len);
}
return nfserr;
}
@@ -2892,9 +2886,8 @@ again:
p = xdr_encode_hyper(p, ld->ld_length);
*p++ = cpu_to_be32(ld->ld_type);
if (conf->len) {
- WRITEMEM(&ld->ld_clientid, 8);
- *p++ = cpu_to_be32(conf->len);
- WRITEMEM(conf->data, conf->len);
+ p = xdr_encode_opaque_fixed(p, &ld->ld_clientid, 8);
+ p = xdr_encode_opaque(p, conf->data, conf->len);
} else { /* non - nfsv4 lock in conflict, no clientid nor owner */
p = xdr_encode_hyper(p, (u64)0); /* clientid */
*p++ = cpu_to_be32(0); /* length of owner name */
@@ -3461,8 +3454,7 @@ nfsd4_do_encode_secinfo(struct xdr_stream *xdr,
if (!p)
goto out;
*p++ = cpu_to_be32(RPC_AUTH_GSS);
- *p++ = cpu_to_be32(info.oid.len);
- WRITEMEM(info.oid.data, info.oid.len);
+ p = xdr_encode_opaque(p, info.oid.data, info.oid.len);
*p++ = cpu_to_be32(info.qop);
*p++ = cpu_to_be32(info.service);
} else if (pf < RPC_AUTH_MAXFLAVOR) {
@@ -3544,8 +3536,9 @@ nfsd4_encode_setclientid(struct nfsd4_compoundres *resp, __be32 nfserr, struct n
p = xdr_reserve_space(xdr, 8 + NFS4_VERIFIER_SIZE);
if (!p)
return nfserr_resource;
- WRITEMEM(&scd->se_clientid, 8);
- WRITEMEM(&scd->se_confirm, NFS4_VERIFIER_SIZE);
+ p = xdr_encode_opaque_fixed(p, &scd->se_clientid, 8);
+ p = xdr_encode_opaque_fixed(p, &scd->se_confirm,
+ NFS4_VERIFIER_SIZE);
}
else if (nfserr == nfserr_clid_inuse) {
p = xdr_reserve_space(xdr, 8);
@@ -3569,7 +3562,8 @@ nfsd4_encode_write(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_w
return nfserr_resource;
*p++ = cpu_to_be32(write->wr_bytes_written);
*p++ = cpu_to_be32(write->wr_how_written);
- WRITEMEM(write->wr_verifier.data, NFS4_VERIFIER_SIZE);
+ p = xdr_encode_opaque_fixed(p, write->wr_verifier.data,
+ NFS4_VERIFIER_SIZE);
}
return nfserr;
}
@@ -3610,7 +3604,7 @@ nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr,
if (!p)
return nfserr_resource;
- WRITEMEM(&exid->clientid, 8);
+ p = xdr_encode_opaque_fixed(p, &exid->clientid, 8);
*p++ = cpu_to_be32(exid->seqid);
*p++ = cpu_to_be32(exid->flags);
@@ -3650,12 +3644,10 @@ nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr,
/* The server_owner struct */
p = xdr_encode_hyper(p, minor_id); /* Minor id */
/* major id */
- *p++ = cpu_to_be32(major_id_sz);
- WRITEMEM(major_id, major_id_sz);
+ p = xdr_encode_opaque(p, major_id, major_id_sz);
/* Server scope */
- *p++ = cpu_to_be32(server_scope_sz);
- WRITEMEM(server_scope, server_scope_sz);
+ p = xdr_encode_opaque(p, server_scope, server_scope_sz);
/* Implementation id */
*p++ = cpu_to_be32(0); /* zero length nfs_impl_id4 array */
@@ -3675,7 +3667,8 @@ nfsd4_encode_create_session(struct nfsd4_compoundres *resp, __be32 nfserr,
p = xdr_reserve_space(xdr, 24);
if (!p)
return nfserr_resource;
- WRITEMEM(sess->sessionid.data, NFS4_MAX_SESSIONID_LEN);
+ p = xdr_encode_opaque_fixed(p, sess->sessionid.data,
+ NFS4_MAX_SESSIONID_LEN);
*p++ = cpu_to_be32(sess->seqid);
*p++ = cpu_to_be32(sess->flags);
@@ -3730,7 +3723,8 @@ nfsd4_encode_sequence(struct nfsd4_compoundres *resp, __be32 nfserr,
p = xdr_reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 20);
if (!p)
return nfserr_resource;
- WRITEMEM(seq->sessionid.data, NFS4_MAX_SESSIONID_LEN);
+ p = xdr_encode_opaque_fixed(p, seq->sessionid.data,
+ NFS4_MAX_SESSIONID_LEN);
*p++ = cpu_to_be32(seq->seqid);
*p++ = cpu_to_be32(seq->slotid);
/* Note slotid's are numbered from zero: */
@@ -3959,7 +3953,7 @@ nfsd4_encode_replay(struct xdr_stream *xdr, struct nfsd4_op *op)
*p++ = cpu_to_be32(op->opnum);
*p++ = rp->rp_status; /* already xdr'ed */
- WRITEMEM(rp->rp_buf, rp->rp_buflen);
+ p = xdr_encode_opaque_fixed(p, rp->rp_buf, rp->rp_buflen);
}
int
--
1.9.0
next prev parent reply other threads:[~2014-05-22 19:32 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-22 19:31 xdr encoding fixes (v3) J. Bruce Fields
2014-05-22 19:31 ` [PATCH 01/52] nfsd4: READ, READDIR, etc., are idempotent J. Bruce Fields
2014-05-23 1:21 ` Kinglong Mee
2014-05-23 13:15 ` J. Bruce Fields
2014-05-22 19:31 ` [PATCH 02/52] nfsd4: allow larger 4.1 session drc slots J. Bruce Fields
2014-05-22 19:31 ` [PATCH 03/52] nfsd4: fill in some missing op_name's J. Bruce Fields
2014-05-22 19:31 ` [PATCH 04/52] nfsd4: decoding errors can still be cached and require space J. Bruce Fields
2014-05-22 19:31 ` [PATCH 05/52] nfsd4: read size estimate should include padding J. Bruce Fields
2014-05-22 19:31 ` [PATCH 06/52] nfsd4: fix write reply size estimate J. Bruce Fields
2014-05-22 19:31 ` [PATCH 07/52] nfsd4: embed xdr_stream in nfsd4_compoundres J. Bruce Fields
2014-05-22 19:31 ` [PATCH 08/52] nfsd4: tweak nfsd4_encode_getattr to take xdr_stream J. Bruce Fields
2014-05-22 19:31 ` [PATCH 09/52] nfsd4: move proc_compound xdr encode init to helper J. Bruce Fields
2014-05-22 19:31 ` [PATCH 10/52] nfsd4: reserve head space for krb5 integ/priv info J. Bruce Fields
2014-05-22 19:31 ` [PATCH 11/52] nfsd4: fix encoding of out-of-space replies J. Bruce Fields
2014-05-22 19:31 ` [PATCH 12/52] nfsd4: allow space for final error return J. Bruce Fields
2014-05-22 19:31 ` [PATCH 13/52] nfsd4: use xdr_reserve_space in attribute encoding J. Bruce Fields
2014-05-25 8:46 ` Kinglong Mee
2014-05-22 19:31 ` [PATCH 14/52] nfsd4: use xdr_stream throughout compound encoding J. Bruce Fields
2014-05-22 19:31 ` [PATCH 15/52] nfsd4: remove ADJUST_ARGS J. Bruce Fields
2014-05-22 19:31 ` [PATCH 16/52] nfsd4: no need for encode_compoundres to adjust lengths J. Bruce Fields
2014-05-22 19:31 ` [PATCH 17/52] nfsd4: keep xdr buf length updated J. Bruce Fields
2014-05-22 19:31 ` [PATCH 18/52] rpc: xdr_truncate_encode J. Bruce Fields
2014-05-22 19:31 ` [PATCH 19/52] nfsd4: use xdr_truncate_encode J. Bruce Fields
2014-05-22 19:31 ` [PATCH 20/52] nfsd4: "backfill" using write_bytes_to_xdr_buf J. Bruce Fields
2014-05-22 19:31 ` [PATCH 21/52] nfsd4: teach encoders to handle reserve_space failures J. Bruce Fields
2014-05-22 19:31 ` [PATCH 22/52] nfsd4: reserve space before inlining 0-copy pages J. Bruce Fields
2014-05-22 19:31 ` [PATCH 23/52] nfsd4: nfsd4_check_resp_size needn't recalculate length J. Bruce Fields
2014-05-22 19:31 ` [PATCH 24/52] nfsd4: remove redundant encode buffer size checking J. Bruce Fields
2014-05-22 19:32 ` [PATCH 25/52] nfsd4: size-checking cleanup J. Bruce Fields
2014-05-22 19:32 ` [PATCH 26/52] nfsd4: allow encoding across page boundaries J. Bruce Fields
2014-05-22 19:32 ` [PATCH 27/52] nfsd4: convert 4.1 replay encoding J. Bruce Fields
2014-05-22 19:32 ` [PATCH 28/52] nfsd4: don't try to encode conflicting owner if low on space J. Bruce Fields
2014-05-22 19:32 ` [PATCH 29/52] nfsd4: more precise nfsd4_max_reply J. Bruce Fields
2014-05-22 19:32 ` [PATCH 30/52] nfsd4: minor encode_read cleanup J. Bruce Fields
2014-05-22 19:32 ` [PATCH 31/52] nfsd4: nfsd4_check_resp_size should check against whole buffer J. Bruce Fields
2014-05-22 19:32 ` [PATCH 32/52] nfsd4: fix buflen calculation after read encoding J. Bruce Fields
2014-05-22 19:32 ` [PATCH 33/52] rpc: define xdr_restrict_buflen J. Bruce Fields
2014-05-22 19:32 ` [PATCH 34/52] nfsd4: adjust buflen to session channel limit J. Bruce Fields
2014-05-22 19:32 ` [PATCH 35/52] nfsd4: use session limits to release send buffer reservation J. Bruce Fields
2014-05-22 19:32 ` [PATCH 36/52] nfsd4: allow large readdirs J. Bruce Fields
2014-05-22 19:32 ` [PATCH 37/52] nfsd4: enforce rd_dircount J. Bruce Fields
2014-05-22 19:32 ` [PATCH 38/52] nfsd4: don't treat readlink like a zero-copy operation J. Bruce Fields
2014-05-22 19:32 ` [PATCH 39/52] nfsd4: better estimate of getattr response size J. Bruce Fields
2014-05-22 19:32 ` [PATCH 40/52] nfsd4: estimate sequence " J. Bruce Fields
2014-05-22 19:32 ` [PATCH 41/52] nfsd4: turn off zero-copy-read in exotic cases J. Bruce Fields
2014-05-28 8:09 ` Christoph Hellwig
2014-05-28 14:01 ` J. Bruce Fields
2014-05-28 14:13 ` Anna Schumaker
2014-05-28 14:23 ` J. Bruce Fields
2014-05-28 14:27 ` Anna Schumaker
2014-06-03 4:18 ` Weston Andros Adamson
2014-06-03 14:10 ` J. Bruce Fields
2014-06-03 14:24 ` Weston Andros Adamson
2014-06-03 14:35 ` J. Bruce Fields
2014-05-28 21:08 ` J. Bruce Fields
2014-06-02 22:12 ` J. Bruce Fields
2014-05-22 19:32 ` [PATCH 42/52] nfsd4: nfsd_vfs_read doesn't use file handle parameter J. Bruce Fields
2014-05-22 19:32 ` [PATCH 43/52] nfsd4: separate splice and readv cases J. Bruce Fields
2014-05-22 19:32 ` [PATCH 44/52] nfsd4: read encoding cleanup J. Bruce Fields
2014-05-22 19:32 ` [PATCH 45/52] nfsd4: more " J. Bruce Fields
2014-05-22 19:32 ` [PATCH 46/52] nfsd4: allow exotic read compounds J. Bruce Fields
2014-05-22 19:32 ` [PATCH 47/52] nfsd4: really fix nfs4err_resource in 4.1 case J. Bruce Fields
2014-05-22 19:32 ` [PATCH 48/52] nfsd4: kill WRITE32 J. Bruce Fields
2014-05-22 19:32 ` [PATCH 49/52] nfsd4: kill WRITE64 J. Bruce Fields
2014-05-22 19:32 ` J. Bruce Fields [this message]
2014-05-22 19:32 ` [PATCH 51/52] nfsd4: kill write32, write64 J. Bruce Fields
2014-05-22 19:32 ` [PATCH 52/52] nfsd4: better reservation of head space for krb5 J. Bruce Fields
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