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Kirill Smelkov
linux
Commits
829186b7
Commit
829186b7
authored
Apr 10, 2004
by
Trond Myklebust
Browse files
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Plain Diff
NFSv4: use the (more efficient) NFSv2/v3-like XDR scheme for generating
READDIR RPC calls.
parent
1513be7e
Changes
4
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Showing
4 changed files
with
108 additions
and
315 deletions
+108
-315
fs/nfs/nfs4proc.c
fs/nfs/nfs4proc.c
+35
-97
fs/nfs/nfs4xdr.c
fs/nfs/nfs4xdr.c
+62
-130
include/linux/nfs4.h
include/linux/nfs4.h
+1
-1
include/linux/nfs_xdr.h
include/linux/nfs_xdr.h
+10
-87
No files found.
fs/nfs/nfs4proc.c
View file @
829186b7
...
@@ -51,9 +51,6 @@
...
@@ -51,9 +51,6 @@
#define NFS4_POLL_RETRY_TIME (15*HZ)
#define NFS4_POLL_RETRY_TIME (15*HZ)
#define GET_OP(cp,name) &cp->ops[cp->req_nops].u.name
#define OPNUM(cp) cp->ops[cp->req_nops].opnum
static
int
nfs4_do_fsinfo
(
struct
nfs_server
*
,
struct
nfs_fh
*
,
struct
nfs_fsinfo
*
);
static
int
nfs4_do_fsinfo
(
struct
nfs_server
*
,
struct
nfs_fh
*
,
struct
nfs_fsinfo
*
);
static
int
nfs4_async_handle_error
(
struct
rpc_task
*
,
struct
nfs_server
*
);
static
int
nfs4_async_handle_error
(
struct
rpc_task
*
,
struct
nfs_server
*
);
extern
u32
*
nfs4_decode_dirent
(
u32
*
p
,
struct
nfs_entry
*
entry
,
int
plus
);
extern
u32
*
nfs4_decode_dirent
(
u32
*
p
,
struct
nfs_entry
*
entry
,
int
plus
);
...
@@ -72,15 +69,6 @@ static inline int nfs4_map_errors(int err)
...
@@ -72,15 +69,6 @@ static inline int nfs4_map_errors(int err)
return
err
;
return
err
;
}
}
static
void
nfs4_setup_compound
(
struct
nfs4_compound
*
cp
,
struct
nfs4_op
*
ops
,
struct
nfs_server
*
server
,
char
*
tag
)
{
memset
(
cp
,
0
,
sizeof
(
*
cp
));
cp
->
ops
=
ops
;
cp
->
server
=
server
;
}
/*
/*
* This is our standard bitmap for GETATTR requests.
* This is our standard bitmap for GETATTR requests.
*/
*/
...
@@ -116,37 +104,21 @@ u32 nfs4_pathconf_bitmap[2] = {
...
@@ -116,37 +104,21 @@ u32 nfs4_pathconf_bitmap[2] = {
0
0
};
};
static
void
static
void
nfs4_setup_readdir
(
u64
cookie
,
u32
*
verifier
,
struct
dentry
*
dentry
,
nfs4_setup_putfh
(
struct
nfs4_compound
*
cp
,
struct
nfs_fh
*
fhandle
)
struct
nfs4_readdir_arg
*
readdir
)
{
struct
nfs4_putfh
*
putfh
=
GET_OP
(
cp
,
putfh
);
putfh
->
pf_fhandle
=
fhandle
;
OPNUM
(
cp
)
=
OP_PUTFH
;
cp
->
req_nops
++
;
}
static
void
nfs4_setup_readdir
(
struct
nfs4_compound
*
cp
,
u64
cookie
,
u32
*
verifier
,
struct
page
**
pages
,
unsigned
int
bufsize
,
struct
dentry
*
dentry
)
{
{
u32
*
start
,
*
p
;
u32
*
start
,
*
p
;
struct
nfs4_readdir
*
readdir
=
GET_OP
(
cp
,
readdir
);
BUG_ON
(
bufsize
<
80
);
readdir
->
rd_cookie
=
(
cookie
>
2
)
?
cookie
:
0
;
memcpy
(
&
readdir
->
rd_req_verifier
,
verifier
,
sizeof
(
readdir
->
rd_req_verifier
));
readdir
->
rd_count
=
bufsize
;
readdir
->
rd_bmval
[
0
]
=
FATTR4_WORD0_FILEID
;
readdir
->
rd_bmval
[
1
]
=
0
;
readdir
->
rd_pages
=
pages
;
readdir
->
rd_pgbase
=
0
;
OPNUM
(
cp
)
=
OP_READDIR
;
cp
->
req_nops
++
;
if
(
cookie
>=
2
)
BUG_ON
(
readdir
->
count
<
80
);
if
(
cookie
>
2
)
{
readdir
->
cookie
=
(
cookie
>
2
)
?
cookie
:
0
;
memcpy
(
&
readdir
->
verifier
,
verifier
,
sizeof
(
readdir
->
verifier
));
return
;
}
readdir
->
cookie
=
0
;
memset
(
&
readdir
->
verifier
,
0
,
sizeof
(
readdir
->
verifier
));
if
(
cookie
==
2
)
return
;
return
;
/*
/*
...
@@ -156,7 +128,7 @@ nfs4_setup_readdir(struct nfs4_compound *cp, u64 cookie, u32 *verifier,
...
@@ -156,7 +128,7 @@ nfs4_setup_readdir(struct nfs4_compound *cp, u64 cookie, u32 *verifier,
* when talking to the server, we always send cookie 0
* when talking to the server, we always send cookie 0
* instead of 1 or 2.
* instead of 1 or 2.
*/
*/
start
=
p
=
(
u32
*
)
kmap_atomic
(
*
pages
,
KM_USER0
);
start
=
p
=
(
u32
*
)
kmap_atomic
(
*
readdir
->
pages
,
KM_USER0
);
if
(
cookie
==
0
)
{
if
(
cookie
==
0
)
{
*
p
++
=
xdr_one
;
/* next */
*
p
++
=
xdr_one
;
/* next */
...
@@ -168,7 +140,7 @@ nfs4_setup_readdir(struct nfs4_compound *cp, u64 cookie, u32 *verifier,
...
@@ -168,7 +140,7 @@ nfs4_setup_readdir(struct nfs4_compound *cp, u64 cookie, u32 *verifier,
*
p
++
=
xdr_one
;
/* bitmap length */
*
p
++
=
xdr_one
;
/* bitmap length */
*
p
++
=
htonl
(
FATTR4_WORD0_FILEID
);
/* bitmap */
*
p
++
=
htonl
(
FATTR4_WORD0_FILEID
);
/* bitmap */
*
p
++
=
htonl
(
8
);
/* attribute buffer length */
*
p
++
=
htonl
(
8
);
/* attribute buffer length */
p
=
xdr_encode_hyper
(
p
,
NFS_FILEID
(
dentry
->
d_inode
)
);
p
=
xdr_encode_hyper
(
p
,
dentry
->
d_inode
->
i_ino
);
}
}
*
p
++
=
xdr_one
;
/* next */
*
p
++
=
xdr_one
;
/* next */
...
@@ -180,10 +152,10 @@ nfs4_setup_readdir(struct nfs4_compound *cp, u64 cookie, u32 *verifier,
...
@@ -180,10 +152,10 @@ nfs4_setup_readdir(struct nfs4_compound *cp, u64 cookie, u32 *verifier,
*
p
++
=
xdr_one
;
/* bitmap length */
*
p
++
=
xdr_one
;
/* bitmap length */
*
p
++
=
htonl
(
FATTR4_WORD0_FILEID
);
/* bitmap */
*
p
++
=
htonl
(
FATTR4_WORD0_FILEID
);
/* bitmap */
*
p
++
=
htonl
(
8
);
/* attribute buffer length */
*
p
++
=
htonl
(
8
);
/* attribute buffer length */
p
=
xdr_encode_hyper
(
p
,
NFS_FILEID
(
dentry
->
d_parent
->
d_inode
)
);
p
=
xdr_encode_hyper
(
p
,
dentry
->
d_parent
->
d_inode
->
i_ino
);
readdir
->
rd_
pgbase
=
(
char
*
)
p
-
(
char
*
)
start
;
readdir
->
pgbase
=
(
char
*
)
p
-
(
char
*
)
start
;
readdir
->
rd_count
-=
readdir
->
rd_
pgbase
;
readdir
->
count
-=
readdir
->
pgbase
;
kunmap_atomic
(
start
,
KM_USER0
);
kunmap_atomic
(
start
,
KM_USER0
);
}
}
...
@@ -197,47 +169,6 @@ renew_lease(struct nfs_server *server, unsigned long timestamp)
...
@@ -197,47 +169,6 @@ renew_lease(struct nfs_server *server, unsigned long timestamp)
spin_unlock
(
&
clp
->
cl_lock
);
spin_unlock
(
&
clp
->
cl_lock
);
}
}
static
inline
void
process_lease
(
struct
nfs4_compound
*
cp
)
{
/*
* Generic lease processing: If this operation contains a
* lease-renewing operation, and it succeeded, update the RENEW time
* in the superblock. Instead of the current time, we use the time
* when the request was sent out. (All we know is that the lease was
* renewed sometime between then and now, and we have to assume the
* worst case.)
*
* Notes:
* (1) renewd doesn't acquire the spinlock when messing with
* server->last_renewal; this is OK since rpciod always runs
* under the BKL.
* (2) cp->timestamp was set at the end of XDR encode.
*/
if
(
!
cp
->
renew_index
)
return
;
if
(
!
cp
->
toplevel_status
||
cp
->
resp_nops
>
cp
->
renew_index
)
renew_lease
(
cp
->
server
,
cp
->
timestamp
);
}
static
int
nfs4_call_compound
(
struct
nfs4_compound
*
cp
,
struct
rpc_cred
*
cred
,
int
flags
)
{
int
status
;
struct
rpc_message
msg
=
{
.
rpc_proc
=
&
nfs4_procedures
[
NFSPROC4_CLNT_COMPOUND
],
.
rpc_argp
=
cp
,
.
rpc_resp
=
cp
,
.
rpc_cred
=
cred
,
};
status
=
rpc_call_sync
(
cp
->
server
->
client
,
&
msg
,
flags
);
if
(
!
status
)
process_lease
(
cp
);
return
status
;
}
static
inline
void
static
inline
void
process_cinfo
(
struct
nfs4_change_info
*
info
,
struct
nfs_fattr
*
fattr
)
process_cinfo
(
struct
nfs4_change_info
*
info
,
struct
nfs_fattr
*
fattr
)
{
{
...
@@ -1209,24 +1140,31 @@ static int nfs4_proc_mkdir(struct inode *dir, struct qstr *name,
...
@@ -1209,24 +1140,31 @@ static int nfs4_proc_mkdir(struct inode *dir, struct qstr *name,
return
nfs4_map_errors
(
status
);
return
nfs4_map_errors
(
status
);
}
}
static
int
static
int
nfs4_proc_readdir
(
struct
dentry
*
dentry
,
struct
rpc_cred
*
cred
,
nfs4_proc_readdir
(
struct
dentry
*
dentry
,
struct
rpc_cred
*
cred
,
u64
cookie
,
struct
page
*
page
,
unsigned
int
count
,
int
plus
)
u64
cookie
,
struct
page
*
page
,
unsigned
int
count
,
int
plus
)
{
{
struct
inode
*
dir
=
dentry
->
d_inode
;
struct
inode
*
dir
=
dentry
->
d_inode
;
struct
nfs4_compound
compound
;
struct
nfs4_readdir_arg
args
=
{
struct
nfs4_op
ops
[
2
];
.
fh
=
NFS_FH
(
dir
),
.
pages
=
&
page
,
.
pgbase
=
0
,
.
count
=
count
,
};
struct
nfs4_readdir_res
res
;
struct
rpc_message
msg
=
{
.
rpc_proc
=
&
nfs4_procedures
[
NFSPROC4_CLNT_READDIR
],
.
rpc_argp
=
&
args
,
.
rpc_resp
=
&
res
,
.
rpc_cred
=
cred
,
};
int
status
;
int
status
;
lock_kernel
();
lock_kernel
();
nfs4_setup_readdir
(
cookie
,
NFS_COOKIEVERF
(
dir
),
dentry
,
&
args
);
nfs4_setup_compound
(
&
compound
,
ops
,
NFS_SERVER
(
dir
),
"readdir"
);
res
.
pgbase
=
args
.
pgbase
;
nfs4_setup_putfh
(
&
compound
,
NFS_FH
(
dir
));
status
=
rpc_call_sync
(
NFS_CLIENT
(
dir
),
&
msg
,
0
);
nfs4_setup_readdir
(
&
compound
,
cookie
,
NFS_COOKIEVERF
(
dir
),
&
page
,
count
,
dentry
);
status
=
nfs4_call_compound
(
&
compound
,
cred
,
0
);
if
(
status
==
0
)
if
(
status
==
0
)
memcpy
(
NFS_COOKIEVERF
(
dir
),
ops
[
1
].
u
.
readdir
.
rd_resp_verifier
.
data
,
NFS4_VERIFIER_SIZE
);
memcpy
(
NFS_COOKIEVERF
(
dir
),
res
.
verifier
.
data
,
NFS4_VERIFIER_SIZE
);
unlock_kernel
();
unlock_kernel
();
return
nfs4_map_errors
(
status
);
return
nfs4_map_errors
(
status
);
}
}
...
...
fs/nfs/nfs4xdr.c
View file @
829186b7
...
@@ -138,6 +138,12 @@ static int nfs_stat_to_errno(int);
...
@@ -138,6 +138,12 @@ static int nfs_stat_to_errno(int);
#define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
#define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz)
op_decode_hdr_maxsz)
#define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
op_encode_hdr_maxsz + 9)
#define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz + 2)
#define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
#define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_putfh_maxsz + \
op_encode_hdr_maxsz + 8)
op_encode_hdr_maxsz + 8)
...
@@ -941,8 +947,7 @@ encode_read(struct xdr_stream *xdr, struct nfs_readargs *args)
...
@@ -941,8 +947,7 @@ encode_read(struct xdr_stream *xdr, struct nfs_readargs *args)
return
0
;
return
0
;
}
}
static
int
static
int
encode_readdir
(
struct
xdr_stream
*
xdr
,
const
struct
nfs4_readdir_arg
*
readdir
,
struct
rpc_rqst
*
req
)
encode_readdir
(
struct
xdr_stream
*
xdr
,
struct
nfs4_readdir
*
readdir
,
struct
rpc_rqst
*
req
)
{
{
struct
rpc_auth
*
auth
=
req
->
rq_task
->
tk_auth
;
struct
rpc_auth
*
auth
=
req
->
rq_task
->
tk_auth
;
int
replen
;
int
replen
;
...
@@ -950,21 +955,21 @@ encode_readdir(struct xdr_stream *xdr, struct nfs4_readdir *readdir, struct rpc_
...
@@ -950,21 +955,21 @@ encode_readdir(struct xdr_stream *xdr, struct nfs4_readdir *readdir, struct rpc_
RESERVE_SPACE
(
32
+
sizeof
(
nfs4_verifier
));
RESERVE_SPACE
(
32
+
sizeof
(
nfs4_verifier
));
WRITE32
(
OP_READDIR
);
WRITE32
(
OP_READDIR
);
WRITE64
(
readdir
->
rd_
cookie
);
WRITE64
(
readdir
->
cookie
);
WRITEMEM
(
readdir
->
rd_req_verifier
.
data
,
sizeof
(
readdir
->
rd_req_
verifier
.
data
));
WRITEMEM
(
readdir
->
verifier
.
data
,
sizeof
(
readdir
->
verifier
.
data
));
WRITE32
(
readdir
->
rd_
count
>>
5
);
/* meaningless "dircount" field */
WRITE32
(
readdir
->
count
>>
5
);
/* meaningless "dircount" field */
WRITE32
(
readdir
->
rd_
count
);
WRITE32
(
readdir
->
count
);
WRITE32
(
2
);
WRITE32
(
2
);
WRITE32
(
readdir
->
rd_bmval
[
0
]
);
WRITE32
(
FATTR4_WORD0_FILEID
);
WRITE32
(
readdir
->
rd_bmval
[
1
]
);
WRITE32
(
0
);
/* set up reply iovec
/* set up reply iovec
* toplevel_status + taglen + rescount + OP_PUTFH + status
* toplevel_status + taglen + rescount + OP_PUTFH + status
* + OP_READDIR + status + verifer(2) = 9
* + OP_READDIR + status + verifer(2) = 9
*/
*/
replen
=
(
RPC_REPHDRSIZE
+
auth
->
au_rslack
+
9
)
<<
2
;
replen
=
(
RPC_REPHDRSIZE
+
auth
->
au_rslack
+
9
)
<<
2
;
xdr_inline_pages
(
&
req
->
rq_rcv_buf
,
replen
,
readdir
->
rd_
pages
,
xdr_inline_pages
(
&
req
->
rq_rcv_buf
,
replen
,
readdir
->
pages
,
readdir
->
rd_pgbase
,
readdir
->
rd_
count
);
readdir
->
pgbase
,
readdir
->
count
);
return
0
;
return
0
;
}
}
...
@@ -1127,56 +1132,10 @@ encode_write(struct xdr_stream *xdr, struct nfs_writeargs *args)
...
@@ -1127,56 +1132,10 @@ encode_write(struct xdr_stream *xdr, struct nfs_writeargs *args)
return
0
;
return
0
;
}
}
/* FIXME: this sucks */
static
int
encode_compound
(
struct
xdr_stream
*
xdr
,
struct
nfs4_compound
*
cp
,
struct
rpc_rqst
*
req
)
{
struct
compound_hdr
hdr
=
{
.
taglen
=
cp
->
taglen
,
.
tag
=
cp
->
tag
,
.
nops
=
cp
->
req_nops
,
};
int
i
,
status
=
0
;
encode_compound_hdr
(
xdr
,
&
hdr
);
for
(
i
=
0
;
i
<
cp
->
req_nops
;
i
++
)
{
switch
(
cp
->
ops
[
i
].
opnum
)
{
case
OP_PUTFH
:
status
=
encode_putfh
(
xdr
,
cp
->
ops
[
i
].
u
.
putfh
.
pf_fhandle
);
break
;
case
OP_READDIR
:
status
=
encode_readdir
(
xdr
,
&
cp
->
ops
[
i
].
u
.
readdir
,
req
);
break
;
default:
BUG
();
}
if
(
status
)
return
status
;
}
return
0
;
}
/*
/*
* END OF "GENERIC" ENCODE ROUTINES.
* END OF "GENERIC" ENCODE ROUTINES.
*/
*/
/*
* Encode COMPOUND argument
*/
static
int
nfs4_xdr_enc_compound
(
struct
rpc_rqst
*
req
,
uint32_t
*
p
,
struct
nfs4_compound
*
cp
)
{
struct
xdr_stream
xdr
;
int
status
;
xdr_init_encode
(
&
xdr
,
&
req
->
rq_snd_buf
,
p
);
status
=
encode_compound
(
&
xdr
,
cp
,
req
);
cp
->
timestamp
=
jiffies
;
return
status
;
}
/*
/*
* Encode an ACCESS request
* Encode an ACCESS request
*/
*/
...
@@ -1564,6 +1523,27 @@ static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, uint32_t *p, const struct
...
@@ -1564,6 +1523,27 @@ static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, uint32_t *p, const struct
return
status
;
return
status
;
}
}
/*
* Encode a READDIR request
*/
static
int
nfs4_xdr_enc_readdir
(
struct
rpc_rqst
*
req
,
uint32_t
*
p
,
const
struct
nfs4_readdir_arg
*
args
)
{
struct
xdr_stream
xdr
;
struct
compound_hdr
hdr
=
{
.
nops
=
2
,
};
int
status
;
xdr_init_encode
(
&
xdr
,
&
req
->
rq_snd_buf
,
p
);
encode_compound_hdr
(
&
xdr
,
&
hdr
);
status
=
encode_putfh
(
&
xdr
,
args
->
fh
);
if
(
status
)
goto
out
;
status
=
encode_readdir
(
&
xdr
,
args
,
req
);
out:
return
status
;
}
/*
/*
* Encode a READ request
* Encode a READ request
*/
*/
...
@@ -2956,8 +2936,7 @@ decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *re
...
@@ -2956,8 +2936,7 @@ decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *re
return
0
;
return
0
;
}
}
static
int
static
int
decode_readdir
(
struct
xdr_stream
*
xdr
,
struct
rpc_rqst
*
req
,
struct
nfs4_readdir_res
*
readdir
)
decode_readdir
(
struct
xdr_stream
*
xdr
,
struct
rpc_rqst
*
req
,
struct
nfs4_readdir
*
readdir
)
{
{
struct
xdr_buf
*
rcvbuf
=
&
req
->
rq_rcv_buf
;
struct
xdr_buf
*
rcvbuf
=
&
req
->
rq_rcv_buf
;
struct
page
*
page
=
*
rcvbuf
->
pages
;
struct
page
*
page
=
*
rcvbuf
->
pages
;
...
@@ -2971,7 +2950,7 @@ decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir
...
@@ -2971,7 +2950,7 @@ decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir
if
(
status
)
if
(
status
)
return
status
;
return
status
;
READ_BUF
(
8
);
READ_BUF
(
8
);
COPYMEM
(
readdir
->
rd_resp_
verifier
.
data
,
8
);
COPYMEM
(
readdir
->
verifier
.
data
,
8
);
hdrlen
=
(
char
*
)
p
-
(
char
*
)
iov
->
iov_base
;
hdrlen
=
(
char
*
)
p
-
(
char
*
)
iov
->
iov_base
;
recvd
=
req
->
rq_received
-
hdrlen
;
recvd
=
req
->
rq_received
-
hdrlen
;
...
@@ -2979,9 +2958,9 @@ decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir
...
@@ -2979,9 +2958,9 @@ decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir
pglen
=
recvd
;
pglen
=
recvd
;
xdr_read_pages
(
xdr
,
pglen
);
xdr_read_pages
(
xdr
,
pglen
);
BUG_ON
(
pglen
+
readdir
->
rd_
pgbase
>
PAGE_CACHE_SIZE
);
BUG_ON
(
pglen
+
readdir
->
pgbase
>
PAGE_CACHE_SIZE
);
kaddr
=
p
=
(
uint32_t
*
)
kmap_atomic
(
page
,
KM_USER0
);
kaddr
=
p
=
(
uint32_t
*
)
kmap_atomic
(
page
,
KM_USER0
);
end
=
(
uint32_t
*
)
((
char
*
)
p
+
pglen
+
readdir
->
rd_
pgbase
);
end
=
(
uint32_t
*
)
((
char
*
)
p
+
pglen
+
readdir
->
pgbase
);
entry
=
p
;
entry
=
p
;
for
(
nr
=
0
;
*
p
++
;
nr
++
)
{
for
(
nr
=
0
;
*
p
++
;
nr
++
)
{
if
(
p
+
3
>
end
)
if
(
p
+
3
>
end
)
...
@@ -3206,53 +3185,6 @@ decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
...
@@ -3206,53 +3185,6 @@ decode_write(struct xdr_stream *xdr, struct nfs_writeres *res)
return
0
;
return
0
;
}
}
/* FIXME: this sucks */
static
int
decode_compound
(
struct
xdr_stream
*
xdr
,
struct
nfs4_compound
*
cp
,
struct
rpc_rqst
*
req
)
{
struct
compound_hdr
hdr
;
struct
nfs4_op
*
op
;
int
status
;
status
=
decode_compound_hdr
(
xdr
,
&
hdr
);
if
(
status
)
goto
out
;
cp
->
toplevel_status
=
hdr
.
status
;
/*
* We need this if our zero-copy I/O is going to work. Rumor has
* it that the spec will soon mandate it...
*/
if
(
hdr
.
taglen
!=
cp
->
taglen
)
dprintk
(
"nfs4: non-conforming server returns tag length mismatch!
\n
"
);
cp
->
resp_nops
=
hdr
.
nops
;
if
(
hdr
.
nops
>
cp
->
req_nops
)
{
dprintk
(
"nfs4: resp_nops > req_nops!
\n
"
);
goto
xdr_error
;
}
op
=
&
cp
->
ops
[
0
];
for
(
cp
->
nops
=
0
;
cp
->
nops
<
cp
->
resp_nops
;
cp
->
nops
++
,
op
++
)
{
switch
(
op
->
opnum
)
{
case
OP_PUTFH
:
status
=
decode_putfh
(
xdr
);
break
;
case
OP_READDIR
:
status
=
decode_readdir
(
xdr
,
req
,
&
op
->
u
.
readdir
);
break
;
default:
BUG
();
return
-
EIO
;
}
if
(
status
)
break
;
}
DECODE_TAIL
;
}
/*
/*
* Decode OPEN_DOWNGRADE response
* Decode OPEN_DOWNGRADE response
*/
*/
...
@@ -3279,27 +3211,6 @@ nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_clos
...
@@ -3279,27 +3211,6 @@ nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_clos
* END OF "GENERIC" DECODE ROUTINES.
* END OF "GENERIC" DECODE ROUTINES.
*/
*/
/*
* Decode COMPOUND response
*/
static
int
nfs4_xdr_dec_compound
(
struct
rpc_rqst
*
rqstp
,
uint32_t
*
p
,
struct
nfs4_compound
*
cp
)
{
struct
xdr_stream
xdr
;
int
status
;
xdr_init_decode
(
&
xdr
,
&
rqstp
->
rq_rcv_buf
,
p
);
if
((
status
=
decode_compound
(
&
xdr
,
cp
,
rqstp
)))
goto
out
;
status
=
0
;
if
(
cp
->
toplevel_status
)
status
=
-
nfs_stat_to_errno
(
cp
->
toplevel_status
);
out:
return
status
;
}
/*
/*
* Decode ACCESS response
* Decode ACCESS response
*/
*/
...
@@ -3691,6 +3602,27 @@ static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, uint32_t *p, void *res)
...
@@ -3691,6 +3602,27 @@ static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, uint32_t *p, void *res)
return
status
;
return
status
;
}
}
/*
* Decode READDIR response
*/
static
int
nfs4_xdr_dec_readdir
(
struct
rpc_rqst
*
rqstp
,
uint32_t
*
p
,
struct
nfs4_readdir_res
*
res
)
{
struct
xdr_stream
xdr
;
struct
compound_hdr
hdr
;
int
status
;
xdr_init_decode
(
&
xdr
,
&
rqstp
->
rq_rcv_buf
,
p
);
status
=
decode_compound_hdr
(
&
xdr
,
&
hdr
);
if
(
status
)
goto
out
;
status
=
decode_putfh
(
&
xdr
);
if
(
status
)
goto
out
;
status
=
decode_readdir
(
&
xdr
,
rqstp
,
res
);
out:
return
status
;
}
/*
/*
* Decode Read response
* Decode Read response
*/
*/
...
@@ -3995,7 +3927,6 @@ nfs_stat_to_errno(int stat)
...
@@ -3995,7 +3927,6 @@ nfs_stat_to_errno(int stat)
}
}
struct
rpc_procinfo
nfs4_procedures
[]
=
{
struct
rpc_procinfo
nfs4_procedures
[]
=
{
PROC
(
COMPOUND
,
enc_compound
,
dec_compound
),
PROC
(
READ
,
enc_read
,
dec_read
),
PROC
(
READ
,
enc_read
,
dec_read
),
PROC
(
WRITE
,
enc_write
,
dec_write
),
PROC
(
WRITE
,
enc_write
,
dec_write
),
PROC
(
COMMIT
,
enc_commit
,
dec_commit
),
PROC
(
COMMIT
,
enc_commit
,
dec_commit
),
...
@@ -4023,6 +3954,7 @@ struct rpc_procinfo nfs4_procedures[] = {
...
@@ -4023,6 +3954,7 @@ struct rpc_procinfo nfs4_procedures[] = {
PROC
(
PATHCONF
,
enc_pathconf
,
dec_pathconf
),
PROC
(
PATHCONF
,
enc_pathconf
,
dec_pathconf
),
PROC
(
STATFS
,
enc_statfs
,
dec_statfs
),
PROC
(
STATFS
,
enc_statfs
,
dec_statfs
),
PROC
(
READLINK
,
enc_readlink
,
dec_readlink
),
PROC
(
READLINK
,
enc_readlink
,
dec_readlink
),
PROC
(
READDIR
,
enc_readdir
,
dec_readdir
),
};
};
struct
rpc_version
nfs_version4
=
{
struct
rpc_version
nfs_version4
=
{
...
...
include/linux/nfs4.h
View file @
829186b7
...
@@ -286,7 +286,6 @@ enum lock_type4 {
...
@@ -286,7 +286,6 @@ enum lock_type4 {
enum
{
enum
{
NFSPROC4_CLNT_NULL
=
0
,
/* Unused */
NFSPROC4_CLNT_NULL
=
0
,
/* Unused */
NFSPROC4_CLNT_COMPOUND
,
/* Soon to be unused */
NFSPROC4_CLNT_READ
,
NFSPROC4_CLNT_READ
,
NFSPROC4_CLNT_WRITE
,
NFSPROC4_CLNT_WRITE
,
NFSPROC4_CLNT_COMMIT
,
NFSPROC4_CLNT_COMMIT
,
...
@@ -314,6 +313,7 @@ enum {
...
@@ -314,6 +313,7 @@ enum {
NFSPROC4_CLNT_PATHCONF
,
NFSPROC4_CLNT_PATHCONF
,
NFSPROC4_CLNT_STATFS
,
NFSPROC4_CLNT_STATFS
,
NFSPROC4_CLNT_READLINK
,
NFSPROC4_CLNT_READLINK
,
NFSPROC4_CLNT_READDIR
,
};
};
#endif
#endif
...
...
include/linux/nfs_xdr.h
View file @
829186b7
...
@@ -496,11 +496,6 @@ struct nfs4_accessres {
...
@@ -496,11 +496,6 @@ struct nfs4_accessres {
u32
access
;
u32
access
;
};
};
struct
nfs4_close
{
char
*
cl_stateid
;
/* request */
u32
cl_seqid
;
/* request */
};
struct
nfs4_create_arg
{
struct
nfs4_create_arg
{
u32
ftype
;
u32
ftype
;
union
{
union
{
...
@@ -524,12 +519,6 @@ struct nfs4_create_res {
...
@@ -524,12 +519,6 @@ struct nfs4_create_res {
struct
nfs4_change_info
dir_cinfo
;
struct
nfs4_change_info
dir_cinfo
;
};
};
#define cr_textlen u.symlink.textlen
#define cr_text u.symlink.text
#define cr_specdata1 u.device.specdata1
#define cr_specdata2 u.device.specdata2
struct
nfs4_getattr
{
struct
nfs4_getattr
{
u32
*
gt_bmval
;
/* request */
u32
*
gt_bmval
;
/* request */
struct
nfs_fattr
*
gt_attrs
;
/* response */
struct
nfs_fattr
*
gt_attrs
;
/* response */
...
@@ -568,44 +557,23 @@ struct nfs4_lookup_root_arg {
...
@@ -568,44 +557,23 @@ struct nfs4_lookup_root_arg {
const
u32
*
bitmask
;
const
u32
*
bitmask
;
};
};
struct
nfs4_open
{
struct
nfs4_client
*
op_client_state
;
/* request */
u32
op_share_access
;
/* request */
u32
op_opentype
;
/* request */
u32
op_createmode
;
/* request */
union
{
/* request */
struct
iattr
*
attrs
;
/* UNCHECKED, GUARDED */
nfs4_verifier
verifier
;
/* EXCLUSIVE */
}
u
;
struct
qstr
*
op_name
;
/* request */
char
*
op_stateid
;
/* response */
struct
nfs4_change_info
*
op_cinfo
;
/* response */
u32
*
op_rflags
;
/* response */
};
#define op_attrs u.attrs
#define op_verifier u.verifier
struct
nfs4_open_confirm
{
char
*
oc_stateid
;
/* request */
};
struct
nfs4_pathconf_arg
{
struct
nfs4_pathconf_arg
{
const
struct
nfs_fh
*
fh
;
const
struct
nfs_fh
*
fh
;
const
u32
*
bitmask
;
const
u32
*
bitmask
;
};
};
struct
nfs4_putfh
{
struct
nfs4_readdir_arg
{
struct
nfs_fh
*
pf_fhandle
;
/* request */
const
struct
nfs_fh
*
fh
;
u64
cookie
;
nfs4_verifier
verifier
;
u32
count
;
struct
page
**
pages
;
/* zero-copy data */
unsigned
int
pgbase
;
/* zero-copy data */
};
};
struct
nfs4_readdir
{
struct
nfs4_readdir_res
{
u64
rd_cookie
;
/* request */
nfs4_verifier
verifier
;
nfs4_verifier
rd_req_verifier
;
/* request */
unsigned
int
pgbase
;
u32
rd_count
;
/* request */
u32
rd_bmval
[
2
];
/* request */
nfs4_verifier
rd_resp_verifier
;
/* response */
struct
page
**
rd_pages
;
/* zero-copy data */
unsigned
int
rd_pgbase
;
/* zero-copy data */
};
};
struct
nfs4_readlink
{
struct
nfs4_readlink
{
...
@@ -631,11 +599,6 @@ struct nfs4_rename_res {
...
@@ -631,11 +599,6 @@ struct nfs4_rename_res {
struct
nfs4_change_info
new_cinfo
;
struct
nfs4_change_info
new_cinfo
;
};
};
struct
nfs4_setattr
{
char
*
st_stateid
;
/* request */
struct
iattr
*
st_iap
;
/* request */
};
struct
nfs4_setclientid
{
struct
nfs4_setclientid
{
nfs4_verifier
sc_verifier
;
/* request */
nfs4_verifier
sc_verifier
;
/* request */
char
*
sc_name
;
/* request */
char
*
sc_name
;
/* request */
...
@@ -651,46 +614,6 @@ struct nfs4_statfs_arg {
...
@@ -651,46 +614,6 @@ struct nfs4_statfs_arg {
const
u32
*
bitmask
;
const
u32
*
bitmask
;
};
};
struct
nfs4_op
{
u32
opnum
;
union
{
struct
nfs4_close
close
;
struct
nfs4_open
open
;
struct
nfs4_open_confirm
open_confirm
;
struct
nfs4_putfh
putfh
;
struct
nfs4_readdir
readdir
;
struct
nfs4_readlink
readlink
;
struct
nfs4_client
*
renew
;
struct
nfs4_setattr
setattr
;
}
u
;
};
struct
nfs4_compound
{
unsigned
int
flags
;
/* defined below */
struct
nfs_server
*
server
;
/* RENEW information */
int
renew_index
;
unsigned
long
timestamp
;
/* scratch variables for XDR encode/decode */
int
nops
;
u32
*
p
;
u32
*
end
;
/* the individual COMPOUND operations */
struct
nfs4_op
*
ops
;
/* request */
int
req_nops
;
u32
taglen
;
char
*
tag
;
/* response */
int
resp_nops
;
int
toplevel_status
;
};
#endif
/* CONFIG_NFS_V4 */
#endif
/* CONFIG_NFS_V4 */
struct
nfs_page
;
struct
nfs_page
;
...
...
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