summaryrefslogtreecommitdiffstats
path: root/fs/nfsd
diff options
context:
space:
mode:
authorGreg Banks <gnb@melbourne.sgi.com>2006-10-04 02:15:47 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-04 07:55:16 -0700
commit7adae489fe794e3e203ff168595f635d0b845e59 (patch)
treef20544b72bdaea7cff0d340b5b4e5bfcaf2ce8fb /fs/nfsd
parent3cc03b164cf01c6f36e64720b58610d292fb26f7 (diff)
downloadop-kernel-dev-7adae489fe794e3e203ff168595f635d0b845e59.zip
op-kernel-dev-7adae489fe794e3e203ff168595f635d0b845e59.tar.gz
[PATCH] knfsd: Prepare knfsd for support of rsize/wsize of up to 1MB, over TCP
The limit over UDP remains at 32K. Also, make some of the apparently arbitrary sizing constants clearer. The biggest change here involves replacing NFSSVC_MAXBLKSIZE by a function of the rqstp. This allows it to be different for different protocols (udp/tcp) and also allows it to depend on the servers declared sv_bufsiz. Note that we don't actually increase sv_bufsz for nfs yet. That comes next. Signed-off-by: Greg Banks <gnb@melbourne.sgi.com> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/nfsd')
-rw-r--r--fs/nfsd/nfs3proc.c14
-rw-r--r--fs/nfsd/nfs3xdr.c13
-rw-r--r--fs/nfsd/nfs4xdr.c6
-rw-r--r--fs/nfsd/nfsproc.c6
-rw-r--r--fs/nfsd/nfsxdr.c10
5 files changed, 27 insertions, 22 deletions
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index 0c4fab0..a5ebc7d 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -160,6 +160,7 @@ nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp,
struct nfsd3_readres *resp)
{
int nfserr;
+ u32 max_blocksize = svc_max_payload(rqstp);
dprintk("nfsd: READ(3) %s %lu bytes at %lu\n",
SVCFH_fmt(&argp->fh),
@@ -172,8 +173,8 @@ nfsd3_proc_read(struct svc_rqst *rqstp, struct nfsd3_readargs *argp,
*/
resp->count = argp->count;
- if (NFSSVC_MAXBLKSIZE < resp->count)
- resp->count = NFSSVC_MAXBLKSIZE;
+ if (max_blocksize < resp->count)
+ resp->count = max_blocksize;
svc_reserve(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4);
@@ -538,15 +539,16 @@ nfsd3_proc_fsinfo(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
struct nfsd3_fsinfores *resp)
{
int nfserr;
+ u32 max_blocksize = svc_max_payload(rqstp);
dprintk("nfsd: FSINFO(3) %s\n",
SVCFH_fmt(&argp->fh));
- resp->f_rtmax = NFSSVC_MAXBLKSIZE;
- resp->f_rtpref = NFSSVC_MAXBLKSIZE;
+ resp->f_rtmax = max_blocksize;
+ resp->f_rtpref = max_blocksize;
resp->f_rtmult = PAGE_SIZE;
- resp->f_wtmax = NFSSVC_MAXBLKSIZE;
- resp->f_wtpref = NFSSVC_MAXBLKSIZE;
+ resp->f_wtmax = max_blocksize;
+ resp->f_wtpref = max_blocksize;
resp->f_wtmult = PAGE_SIZE;
resp->f_dtpref = PAGE_SIZE;
resp->f_maxfilesize = ~(u32) 0;
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
index 4b9aefb..247d518 100644
--- a/fs/nfsd/nfs3xdr.c
+++ b/fs/nfsd/nfs3xdr.c
@@ -330,6 +330,7 @@ nfs3svc_decode_readargs(struct svc_rqst *rqstp, u32 *p,
{
unsigned int len;
int v,pn;
+ u32 max_blocksize = svc_max_payload(rqstp);
if (!(p = decode_fh(p, &args->fh))
|| !(p = xdr_decode_hyper(p, &args->offset)))
@@ -337,8 +338,8 @@ nfs3svc_decode_readargs(struct svc_rqst *rqstp, u32 *p,
len = args->count = ntohl(*p++);
- if (len > NFSSVC_MAXBLKSIZE)
- len = NFSSVC_MAXBLKSIZE;
+ if (len > max_blocksize)
+ len = max_blocksize;
/* set up the kvec */
v=0;
@@ -358,6 +359,7 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, u32 *p,
struct nfsd3_writeargs *args)
{
unsigned int len, v, hdr;
+ u32 max_blocksize = svc_max_payload(rqstp);
if (!(p = decode_fh(p, &args->fh))
|| !(p = xdr_decode_hyper(p, &args->offset)))
@@ -375,8 +377,8 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, u32 *p,
rqstp->rq_vec[0].iov_base = (void*)p;
rqstp->rq_vec[0].iov_len = rqstp->rq_arg.head[0].iov_len - hdr;
- if (len > NFSSVC_MAXBLKSIZE)
- len = NFSSVC_MAXBLKSIZE;
+ if (len > max_blocksize)
+ len = max_blocksize;
v= 0;
while (len > rqstp->rq_vec[v].iov_len) {
len -= rqstp->rq_vec[v].iov_len;
@@ -564,6 +566,7 @@ nfs3svc_decode_readdirplusargs(struct svc_rqst *rqstp, u32 *p,
struct nfsd3_readdirargs *args)
{
int len, pn;
+ u32 max_blocksize = svc_max_payload(rqstp);
if (!(p = decode_fh(p, &args->fh)))
return 0;
@@ -572,7 +575,7 @@ nfs3svc_decode_readdirplusargs(struct svc_rqst *rqstp, u32 *p,
args->dircount = ntohl(*p++);
args->count = ntohl(*p++);
- len = (args->count > NFSSVC_MAXBLKSIZE) ? NFSSVC_MAXBLKSIZE :
+ len = (args->count > max_blocksize) ? max_blocksize :
args->count;
args->count = len;
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index df34195..4cfacc5 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1536,12 +1536,12 @@ out_acl:
if (bmval0 & FATTR4_WORD0_MAXREAD) {
if ((buflen -= 8) < 0)
goto out_resource;
- WRITE64((u64) NFSSVC_MAXBLKSIZE);
+ WRITE64((u64) svc_max_payload(rqstp));
}
if (bmval0 & FATTR4_WORD0_MAXWRITE) {
if ((buflen -= 8) < 0)
goto out_resource;
- WRITE64((u64) NFSSVC_MAXBLKSIZE);
+ WRITE64((u64) svc_max_payload(rqstp));
}
if (bmval1 & FATTR4_WORD1_MODE) {
if ((buflen -= 4) < 0)
@@ -2055,7 +2055,7 @@ nfsd4_encode_read(struct nfsd4_compoundres *resp, int nfserr,
RESERVE_SPACE(8); /* eof flag and byte count */
- maxcount = NFSSVC_MAXBLKSIZE;
+ maxcount = svc_max_payload(resp->rqstp);
if (maxcount > read->rd_length)
maxcount = read->rd_length;
diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index ca49731..9ee1dab 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -146,13 +146,13 @@ nfsd_proc_read(struct svc_rqst *rqstp, struct nfsd_readargs *argp,
* status, 17 words for fattr, and 1 word for the byte count.
*/
- if (NFSSVC_MAXBLKSIZE < argp->count) {
+ if (NFSSVC_MAXBLKSIZE_V2 < argp->count) {
printk(KERN_NOTICE
"oversized read request from %u.%u.%u.%u:%d (%d bytes)\n",
NIPQUAD(rqstp->rq_addr.sin_addr.s_addr),
ntohs(rqstp->rq_addr.sin_port),
argp->count);
- argp->count = NFSSVC_MAXBLKSIZE;
+ argp->count = NFSSVC_MAXBLKSIZE_V2;
}
svc_reserve(rqstp, (19<<2) + argp->count + 4);
@@ -553,7 +553,7 @@ static struct svc_procedure nfsd_procedures2[18] = {
PROC(none, void, void, none, RC_NOCACHE, ST),
PROC(lookup, diropargs, diropres, fhandle, RC_NOCACHE, ST+FH+AT),
PROC(readlink, readlinkargs, readlinkres, none, RC_NOCACHE, ST+1+NFS_MAXPATHLEN/4),
- PROC(read, readargs, readres, fhandle, RC_NOCACHE, ST+AT+1+NFSSVC_MAXBLKSIZE/4),
+ PROC(read, readargs, readres, fhandle, RC_NOCACHE, ST+AT+1+NFSSVC_MAXBLKSIZE_V2/4),
PROC(none, void, void, none, RC_NOCACHE, ST),
PROC(write, writeargs, attrstat, fhandle, RC_REPLBUFF, ST+AT),
PROC(create, createargs, diropres, fhandle, RC_REPLBUFF, ST+FH+AT),
diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
index ab6745e..1135c0d 100644
--- a/fs/nfsd/nfsxdr.c
+++ b/fs/nfsd/nfsxdr.c
@@ -254,8 +254,8 @@ nfssvc_decode_readargs(struct svc_rqst *rqstp, u32 *p,
len = args->count = ntohl(*p++);
p++; /* totalcount - unused */
- if (len > NFSSVC_MAXBLKSIZE)
- len = NFSSVC_MAXBLKSIZE;
+ if (len > NFSSVC_MAXBLKSIZE_V2)
+ len = NFSSVC_MAXBLKSIZE_V2;
/* set up somewhere to store response.
* We take pages, put them on reslist and include in iovec
@@ -288,8 +288,8 @@ nfssvc_decode_writeargs(struct svc_rqst *rqstp, u32 *p,
rqstp->rq_vec[0].iov_base = (void*)p;
rqstp->rq_vec[0].iov_len = rqstp->rq_arg.head[0].iov_len -
(((void*)p) - rqstp->rq_arg.head[0].iov_base);
- if (len > NFSSVC_MAXBLKSIZE)
- len = NFSSVC_MAXBLKSIZE;
+ if (len > NFSSVC_MAXBLKSIZE_V2)
+ len = NFSSVC_MAXBLKSIZE_V2;
v = 0;
while (len > rqstp->rq_vec[v].iov_len) {
len -= rqstp->rq_vec[v].iov_len;
@@ -458,7 +458,7 @@ nfssvc_encode_statfsres(struct svc_rqst *rqstp, u32 *p,
{
struct kstatfs *stat = &resp->stats;
- *p++ = htonl(NFSSVC_MAXBLKSIZE); /* max transfer size */
+ *p++ = htonl(NFSSVC_MAXBLKSIZE_V2); /* max transfer size */
*p++ = htonl(stat->f_bsize);
*p++ = htonl(stat->f_blocks);
*p++ = htonl(stat->f_bfree);
OpenPOWER on IntegriCloud