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nfsd: export proper maximum file size to the client

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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>
This commit is contained in:
Christoph Hellwig 2013-11-14 05:50:10 -08:00 committed by J. Bruce Fields
parent 6ff40decff
commit aea240f416
1 changed files with 1 additions and 1 deletions
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2
fs/nfsd/nfs4xdr.c
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@ -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)