From: Chuck Lever <chuck.lever@oracle.com>
Date: Mon, 18 Sep 2023 13:59:20 +0000 (-0400)
Subject: NFSD: Add nfsd4_encode_fattr4_maxfilesize()
X-Git-Tag: microblaze-v6.8~207^2~70
X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=7c605dccc551130975021a9b603b1766bf36d00e;p=linux-2.6-microblaze.git

NFSD: Add nfsd4_encode_fattr4_maxfilesize()

Refactor the encoder for FATTR4_MAXFILESIZE into a helper. In a
subsequent patch, this helper will be called from a bitmask loop.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index ce0cfd51503e..8f1e7f3699c2 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -3151,6 +3151,14 @@ static __be32 nfsd4_encode_fattr4_fs_locations(struct xdr_stream *xdr,
 	return nfsd4_encode_fs_locations4(xdr, args->rqstp, args->exp);
 }
 
+static __be32 nfsd4_encode_fattr4_maxfilesize(struct xdr_stream *xdr,
+					      const struct nfsd4_fattr_args *args)
+{
+	struct super_block *sb = args->exp->ex_path.mnt->mnt_sb;
+
+	return nfsd4_encode_uint64_t(xdr, sb->s_maxbytes);
+}
+
 /*
  * Note: @fhp can be NULL; in this case, we might have to compose the filehandle
  * ourselves.
@@ -3405,10 +3413,9 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
 			goto out;
 	}
 	if (bmval0 & FATTR4_WORD0_MAXFILESIZE) {
-		p = xdr_reserve_space(xdr, 8);
-		if (!p)
-			goto out_resource;
-		p = xdr_encode_hyper(p, exp->ex_path.mnt->mnt_sb->s_maxbytes);
+		status = nfsd4_encode_fattr4_maxfilesize(xdr, &args);
+		if (status != nfs_ok)
+			goto out;
 	}
 	if (bmval0 & FATTR4_WORD0_MAXLINK) {
 		p = xdr_reserve_space(xdr, 4);