Commit aea240f4 authored Nov 14, 2013 by Christoph Hellwig Committed by J. Bruce Fields Nov 14, 2013

nfsd: export proper maximum file size to the client



I noticed that we export a way to high value for the maxfilesize
attribute when debugging a client issue.  The issue didn't turn
out to be related to it, but I think we should export it, so that
clients can limit what write sizes they accept before hitting
the server.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

parent 6ff40dec

fs/nfsd/nfs4xdr.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -2391,7 +2391,7 @@ nfsd4_encode_fattr(struct svc_fh fhp, struct svc_export exp,
	if (bmval0 & FATTR4_WORD0_MAXFILESIZE) {		if (bmval0 & FATTR4_WORD0_MAXFILESIZE) {
	if ((buflen -= 8) < 0)		if ((buflen -= 8) < 0)
	goto out_resource;		goto out_resource;
	WRITE64(~(u64)0);		WRITE64(exp->ex_path.mnt->mnt_sb->s_maxbytes);
	}		}
	if (bmval0 & FATTR4_WORD0_MAXLINK) {		if (bmval0 & FATTR4_WORD0_MAXLINK) {
	if ((buflen -= 4) < 0)		if ((buflen -= 4) < 0)