diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c index eb243edf8932b36e58c26f72c24efeb46f1040b3..2102e2d0134dc2db7c9a50da58a29f35aea34711 100644 --- a/fs/lockd/mon.c +++ b/fs/lockd/mon.c @@ -225,16 +225,13 @@ xdr_decode_stat(struct rpc_rqst *rqstp, __be32 *p, struct nsm_res *resp) #define SM_monres_sz 2 #define SM_unmonres_sz 1 -#ifndef MAX -# define MAX(a, b) (((a) > (b))? (a) : (b)) -#endif - static struct rpc_procinfo nsm_procedures[] = { [SM_MON] = { .p_proc = SM_MON, .p_encode = (kxdrproc_t) xdr_encode_mon, .p_decode = (kxdrproc_t) xdr_decode_stat_res, - .p_bufsiz = MAX(SM_mon_sz, SM_monres_sz) << 2, + .p_arglen = SM_mon_sz, + .p_replen = SM_monres_sz, .p_statidx = SM_MON, .p_name = "MONITOR", }, @@ -242,7 +239,8 @@ static struct rpc_procinfo nsm_procedures[] = { .p_proc = SM_UNMON, .p_encode = (kxdrproc_t) xdr_encode_unmon, .p_decode = (kxdrproc_t) xdr_decode_stat, - .p_bufsiz = MAX(SM_mon_id_sz, SM_unmonres_sz) << 2, + .p_arglen = SM_mon_id_sz, + .p_replen = SM_unmonres_sz, .p_statidx = SM_UNMON, .p_name = "UNMONITOR", }, diff --git a/fs/lockd/xdr.c b/fs/lockd/xdr.c index 6aac4b2c9ff0a896813bcf76ddf274cefe38de14..9702956d206cf69ce9c4d5c6b3d419f0144359e8 100644 --- a/fs/lockd/xdr.c +++ b/fs/lockd/xdr.c @@ -534,10 +534,6 @@ nlmclt_decode_res(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp) #define NLM_res_sz NLM_cookie_sz+1 #define NLM_norep_sz 0 -#ifndef MAX -# define MAX(a, b) (((a) > (b))? (a) : (b)) -#endif - /* * For NLM, a void procedure really returns nothing */ @@ -548,7 +544,8 @@ nlmclt_decode_res(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp) .p_proc = NLMPROC_##proc, \ .p_encode = (kxdrproc_t) nlmclt_encode_##argtype, \ .p_decode = (kxdrproc_t) nlmclt_decode_##restype, \ - .p_bufsiz = MAX(NLM_##argtype##_sz, NLM_##restype##_sz) << 2, \ + .p_arglen = NLM_##argtype##_sz, \ + .p_replen = NLM_##restype##_sz, \ .p_statidx = NLMPROC_##proc, \ .p_name = #proc, \ } diff --git a/fs/lockd/xdr4.c b/fs/lockd/xdr4.c index 7c8b679c394cc1f42b7c60274868923ad68c6eda..ce1efdbe1b3a49616a8698c49efc75b6c2deba2c 100644 --- a/fs/lockd/xdr4.c +++ b/fs/lockd/xdr4.c @@ -544,10 +544,6 @@ nlm4clt_decode_res(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp) #define NLM4_res_sz NLM4_cookie_sz+1 #define NLM4_norep_sz 0 -#ifndef MAX -# define MAX(a,b) (((a) > (b))? (a) : (b)) -#endif - /* * For NLM, a void procedure really returns nothing */ @@ -558,7 +554,8 @@ nlm4clt_decode_res(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp) .p_proc = NLMPROC_##proc, \ .p_encode = (kxdrproc_t) nlm4clt_encode_##argtype, \ .p_decode = (kxdrproc_t) nlm4clt_decode_##restype, \ - .p_bufsiz = MAX(NLM4_##argtype##_sz, NLM4_##restype##_sz) << 2, \ + .p_arglen = NLM4_##argtype##_sz, \ + .p_replen = NLM4_##restype##_sz, \ .p_statidx = NLMPROC_##proc, \ .p_name = #proc, \ } diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c index f75fe72b4160b7bdfbae6631d87c3bca8e63d496..ca5a266a3140430266e7c57a2292134218cad6c1 100644 --- a/fs/nfs/mount_clnt.c +++ b/fs/nfs/mount_clnt.c @@ -133,13 +133,15 @@ xdr_decode_fhstatus3(struct rpc_rqst *req, __be32 *p, struct mnt_fhstatus *res) #define MNT_dirpath_sz (1 + 256) #define MNT_fhstatus_sz (1 + 8) +#define MNT_fhstatus3_sz (1 + 16) static struct rpc_procinfo mnt_procedures[] = { [MNTPROC_MNT] = { .p_proc = MNTPROC_MNT, .p_encode = (kxdrproc_t) xdr_encode_dirpath, .p_decode = (kxdrproc_t) xdr_decode_fhstatus, - .p_bufsiz = MNT_dirpath_sz << 2, + .p_arglen = MNT_dirpath_sz, + .p_replen = MNT_fhstatus_sz, .p_statidx = MNTPROC_MNT, .p_name = "MOUNT", }, @@ -150,7 +152,8 @@ static struct rpc_procinfo mnt3_procedures[] = { .p_proc = MOUNTPROC3_MNT, .p_encode = (kxdrproc_t) xdr_encode_dirpath, .p_decode = (kxdrproc_t) xdr_decode_fhstatus3, - .p_bufsiz = MNT_dirpath_sz << 2, + .p_arglen = MNT_dirpath_sz, + .p_replen = MNT_fhstatus3_sz, .p_statidx = MOUNTPROC3_MNT, .p_name = "MOUNT", }, diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c index 3be4e72a0227e71030709b019dd35db28897a34e..abd9f8b48943997f5b30a4b500da26955013e863 100644 --- a/fs/nfs/nfs2xdr.c +++ b/fs/nfs/nfs2xdr.c @@ -687,16 +687,13 @@ nfs_stat_to_errno(int stat) return nfs_errtbl[i].errno; } -#ifndef MAX -# define MAX(a, b) (((a) > (b))? (a) : (b)) -#endif - #define PROC(proc, argtype, restype, timer) \ [NFSPROC_##proc] = { \ .p_proc = NFSPROC_##proc, \ .p_encode = (kxdrproc_t) nfs_xdr_##argtype, \ .p_decode = (kxdrproc_t) nfs_xdr_##restype, \ - .p_bufsiz = MAX(NFS_##argtype##_sz,NFS_##restype##_sz) << 2, \ + .p_arglen = NFS_##argtype##_sz, \ + .p_replen = NFS_##restype##_sz, \ .p_timer = timer, \ .p_statidx = NFSPROC_##proc, \ .p_name = #proc, \ diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c index 0ace092d126f930e10e946340c8c04b8be7dfa14..b51df8eb9f010c070ec4545248374fa02687e175 100644 --- a/fs/nfs/nfs3xdr.c +++ b/fs/nfs/nfs3xdr.c @@ -1102,16 +1102,13 @@ nfs3_xdr_setaclres(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr) } #endif /* CONFIG_NFS_V3_ACL */ -#ifndef MAX -# define MAX(a, b) (((a) > (b))? (a) : (b)) -#endif - #define PROC(proc, argtype, restype, timer) \ [NFS3PROC_##proc] = { \ .p_proc = NFS3PROC_##proc, \ .p_encode = (kxdrproc_t) nfs3_xdr_##argtype, \ .p_decode = (kxdrproc_t) nfs3_xdr_##restype, \ - .p_bufsiz = MAX(NFS3_##argtype##_sz,NFS3_##restype##_sz) << 2, \ + .p_arglen = NFS3_##argtype##_sz, \ + .p_replen = NFS3_##restype##_sz, \ .p_timer = timer, \ .p_statidx = NFS3PROC_##proc, \ .p_name = #proc, \ @@ -1153,7 +1150,8 @@ static struct rpc_procinfo nfs3_acl_procedures[] = { .p_proc = ACLPROC3_GETACL, .p_encode = (kxdrproc_t) nfs3_xdr_getaclargs, .p_decode = (kxdrproc_t) nfs3_xdr_getaclres, - .p_bufsiz = MAX(ACL3_getaclargs_sz, ACL3_getaclres_sz) << 2, + .p_arglen = ACL3_getaclargs_sz, + .p_replen = ACL3_getaclres_sz, .p_timer = 1, .p_name = "GETACL", }, @@ -1161,7 +1159,8 @@ static struct rpc_procinfo nfs3_acl_procedures[] = { .p_proc = ACLPROC3_SETACL, .p_encode = (kxdrproc_t) nfs3_xdr_setaclargs, .p_decode = (kxdrproc_t) nfs3_xdr_setaclres, - .p_bufsiz = MAX(ACL3_setaclargs_sz, ACL3_setaclres_sz) << 2, + .p_arglen = ACL3_setaclargs_sz, + .p_replen = ACL3_setaclres_sz, .p_timer = 0, .p_name = "SETACL", }, diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index f02d522fd78862a5195c5f461d8546cbe24863bf..b8c28f2380a5bcf2aacb48cb45294df65379d21d 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -4546,16 +4546,13 @@ nfs4_stat_to_errno(int stat) return stat; } -#ifndef MAX -# define MAX(a, b) (((a) > (b))? (a) : (b)) -#endif - #define PROC(proc, argtype, restype) \ [NFSPROC4_CLNT_##proc] = { \ .p_proc = NFSPROC4_COMPOUND, \ .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ - .p_bufsiz = MAX(NFS4_##argtype##_sz,NFS4_##restype##_sz) << 2, \ + .p_arglen = NFS4_##argtype##_sz, \ + .p_replen = NFS4_##restype##_sz, \ .p_statidx = NFSPROC4_CLNT_##proc, \ .p_name = #proc, \ } diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c index fb14d68eacab846db08f92bbcdca7a1aff56e43c..32ffea033c7a9ca628cb5553daa740d73bb6994d 100644 --- a/fs/nfsd/nfs4callback.c +++ b/fs/nfsd/nfs4callback.c @@ -315,16 +315,13 @@ nfs4_xdr_dec_cb_recall(struct rpc_rqst *rqstp, __be32 *p) /* * RPC procedure tables */ -#ifndef MAX -# define MAX(a, b) (((a) > (b))? (a) : (b)) -#endif - #define PROC(proc, call, argtype, restype) \ [NFSPROC4_CLNT_##proc] = { \ .p_proc = NFSPROC4_CB_##call, \ .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ - .p_bufsiz = MAX(NFS4_##argtype##_sz,NFS4_##restype##_sz) << 2, \ + .p_arglen = NFS4_##argtype##_sz, \ + .p_replen = NFS4_##restype##_sz, \ .p_statidx = NFSPROC4_CB_##call, \ .p_name = #proc, \ } diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h index c7a78eef2b4faf21171c175607a249d4b5c983bf..32c48a0b0d71220981a908774ca8f18fd4234996 100644 --- a/include/linux/sunrpc/clnt.h +++ b/include/linux/sunrpc/clnt.h @@ -84,7 +84,8 @@ struct rpc_procinfo { u32 p_proc; /* RPC procedure number */ kxdrproc_t p_encode; /* XDR encode function */ kxdrproc_t p_decode; /* XDR decode function */ - unsigned int p_bufsiz; /* req. buffer size */ + unsigned int p_arglen; /* argument hdr length (u32) */ + unsigned int p_replen; /* reply hdr length (u32) */ unsigned int p_count; /* call count */ unsigned int p_timer; /* Which RTT timer to use */ u32 p_statidx; /* Which procedure to account */ diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index f780e72fc417e44b1701edd63d9af1ef271f703e..7aa29502b187f76f0838c9954604e6fb2af23c33 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -84,7 +84,9 @@ struct rpc_rqst { struct list_head rq_list; __u32 * rq_buffer; /* XDR encode buffer */ - size_t rq_bufsize; + size_t rq_bufsize, + rq_callsize, + rq_rcvsize; struct xdr_buf rq_private_buf; /* The receive buffer * used in the softirq. diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 396cdbe249d10a6a255a3431d58cc3c266cff6a9..12487aafaab57418b330130bb54c7f4a10561818 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -36,8 +36,6 @@ #include -#define RPC_SLACK_SPACE (1024) /* total overkill */ - #ifdef RPC_DEBUG # define RPCDBG_FACILITY RPCDBG_CALL #endif @@ -747,21 +745,37 @@ call_reserveresult(struct rpc_task *task) static void call_allocate(struct rpc_task *task) { + unsigned int slack = task->tk_auth->au_cslack; struct rpc_rqst *req = task->tk_rqstp; struct rpc_xprt *xprt = task->tk_xprt; - unsigned int bufsiz; + struct rpc_procinfo *proc = task->tk_msg.rpc_proc; dprint_status(task); + task->tk_status = 0; task->tk_action = call_bind; + if (req->rq_buffer) return; - /* FIXME: compute buffer requirements more exactly using - * auth->au_wslack */ - bufsiz = task->tk_msg.rpc_proc->p_bufsiz + RPC_SLACK_SPACE; + if (proc->p_proc != 0) { + BUG_ON(proc->p_arglen == 0); + if (proc->p_decode != NULL) + BUG_ON(proc->p_replen == 0); + } - if (xprt->ops->buf_alloc(task, bufsiz << 1) != NULL) + /* + * Calculate the size (in quads) of the RPC call + * and reply headers, and convert both values + * to byte sizes. + */ + req->rq_callsize = RPC_CALLHDRSIZE + (slack << 1) + proc->p_arglen; + req->rq_callsize <<= 2; + req->rq_rcvsize = RPC_REPHDRSIZE + slack + proc->p_replen; + req->rq_rcvsize <<= 2; + + xprt->ops->buf_alloc(task, req->rq_callsize + req->rq_rcvsize); + if (req->rq_buffer != NULL) return; dprintk("RPC: %5u rpc_buffer allocation failed\n", task->tk_pid); @@ -788,6 +802,17 @@ rpc_task_force_reencode(struct rpc_task *task) task->tk_rqstp->rq_snd_buf.len = 0; } +static inline void +rpc_xdr_buf_init(struct xdr_buf *buf, void *start, size_t len) +{ + buf->head[0].iov_base = start; + buf->head[0].iov_len = len; + buf->tail[0].iov_len = 0; + buf->page_len = 0; + buf->len = 0; + buf->buflen = len; +} + /* * 3. Encode arguments of an RPC call */ @@ -795,28 +820,17 @@ static void call_encode(struct rpc_task *task) { struct rpc_rqst *req = task->tk_rqstp; - struct xdr_buf *sndbuf = &req->rq_snd_buf; - struct xdr_buf *rcvbuf = &req->rq_rcv_buf; - unsigned int bufsiz; kxdrproc_t encode; __be32 *p; dprint_status(task); - /* Default buffer setup */ - bufsiz = req->rq_bufsize >> 1; - sndbuf->head[0].iov_base = (void *)req->rq_buffer; - sndbuf->head[0].iov_len = bufsiz; - sndbuf->tail[0].iov_len = 0; - sndbuf->page_len = 0; - sndbuf->len = 0; - sndbuf->buflen = bufsiz; - rcvbuf->head[0].iov_base = (void *)((char *)req->rq_buffer + bufsiz); - rcvbuf->head[0].iov_len = bufsiz; - rcvbuf->tail[0].iov_len = 0; - rcvbuf->page_len = 0; - rcvbuf->len = 0; - rcvbuf->buflen = bufsiz; + rpc_xdr_buf_init(&req->rq_snd_buf, + req->rq_buffer, + req->rq_callsize); + rpc_xdr_buf_init(&req->rq_rcv_buf, + (char *)req->rq_buffer + req->rq_callsize, + req->rq_rcvsize); /* Encode header and provided arguments */ encode = task->tk_msg.rpc_proc->p_encode; diff --git a/net/sunrpc/pmap_clnt.c b/net/sunrpc/pmap_clnt.c index d9f765344589e5e87b53443c3787b355d440305c..c45fc4c9951394453306fe4e65c6d2a49bf3dd6a 100644 --- a/net/sunrpc/pmap_clnt.c +++ b/net/sunrpc/pmap_clnt.c @@ -335,7 +335,8 @@ static struct rpc_procinfo pmap_procedures[] = { .p_proc = PMAP_SET, .p_encode = (kxdrproc_t) xdr_encode_mapping, .p_decode = (kxdrproc_t) xdr_decode_bool, - .p_bufsiz = 4, + .p_arglen = 4, + .p_replen = 1, .p_count = 1, .p_statidx = PMAP_SET, .p_name = "SET", @@ -344,7 +345,8 @@ static struct rpc_procinfo pmap_procedures[] = { .p_proc = PMAP_UNSET, .p_encode = (kxdrproc_t) xdr_encode_mapping, .p_decode = (kxdrproc_t) xdr_decode_bool, - .p_bufsiz = 4, + .p_arglen = 4, + .p_replen = 1, .p_count = 1, .p_statidx = PMAP_UNSET, .p_name = "UNSET", @@ -353,7 +355,8 @@ static struct rpc_procinfo pmap_procedures[] = { .p_proc = PMAP_GETPORT, .p_encode = (kxdrproc_t) xdr_encode_mapping, .p_decode = (kxdrproc_t) xdr_decode_port, - .p_bufsiz = 4, + .p_arglen = 4, + .p_replen = 1, .p_count = 1, .p_statidx = PMAP_GETPORT, .p_name = "GETPORT", diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index 456a1451030806be9183bab642552ef1c7508c64..432ee92cf262c7f5687165fa95413c519e770c8c 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -823,7 +823,6 @@ static void xprt_request_init(struct rpc_task *task, struct rpc_xprt *xprt) req->rq_task = task; req->rq_xprt = xprt; req->rq_buffer = NULL; - req->rq_bufsize = 0; req->rq_xid = xprt_alloc_xid(xprt); req->rq_release_snd_buf = NULL; xprt_reset_majortimeo(req);