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[PATCH] knfsd: Prepare knfsd for support of rsize/wsize of up to 1MB, over TCP

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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>
This commit is contained in:
Greg Banks
2006-10-04 02:15:47 -07:00
committed by Linus Torvalds
parent 3cc03b164c
commit 7adae489fe
11 changed files with 119 additions and 34 deletions
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6
fs/nfsd/nfs4xdr.c
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@ -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;