nfsd: allow nfsv3 readdir request to be larger.

nfsd currently reports the NFSv3 dtpref FSINFO parameter
to be PAGE_SIZE, so NFS clients will typically ask for one
page of directory entries at a time.  This is needlessly restrictive
as nfsd can handle larger replies easily.

Also, a READDIR request (but not a READDIRPLUS request) has the count
size clipped to PAGE_SIE, again unnecessary.

This patch lifts these limits so that larger readdir requests can be
used.

Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index c9cf46e0c040..8f933e84cec1 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -588,7 +588,7 @@ nfsd3_proc_fsinfo(struct svc_rqst *rqstp)
         resp->f_wtmax  = max_blocksize;
         resp->f_wtpref = max_blocksize;
         resp->f_wtmult = PAGE_SIZE;
-        resp->f_dtpref = PAGE_SIZE;
+        resp->f_dtpref = max_blocksize;
         resp->f_maxfilesize = ~(u32) 0;
         resp->f_properties = NFS3_FSF_DEFAULT;