From 542d1ab3c7ce53be7d7122a83d016304af4e6345 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Mon, 2 Jun 2014 12:45:31 -0400
Subject: [PATCH] nfsd4: kill READ64

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/nfs4xdr.c | 33 ++++++++++++++++-----------------
 1 file changed, 16 insertions(+), 17 deletions(-)

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index a23fa00..2d305a1 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -98,10 +98,6 @@ xdr_error:					\
 	status = nfserr_bad_xdr;		\
 	goto out
 
-#define READ64(x)         do {			\
-	(x) = (u64)ntohl(*p++) << 32;		\
-	(x) |= ntohl(*p++);			\
-} while (0)
 #define READMEM(x,nbytes) do {			\
 	x = (char *)p;				\
 	p += XDR_QUADLEN(nbytes);		\
@@ -269,6 +265,7 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
 {
 	int expected_len, len = 0;
 	u32 dummy32;
+	u64 sec;
 	char *buf;
 
 	DECODE_HEAD;
@@ -282,7 +279,7 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
 	if (bmval[0] & FATTR4_WORD0_SIZE) {
 		READ_BUF(8);
 		len += 8;
-		READ64(iattr->ia_size);
+		p = xdr_decode_hyper(p, &iattr->ia_size);
 		iattr->ia_valid |= ATTR_SIZE;
 	}
 	if (bmval[0] & FATTR4_WORD0_ACL) {
@@ -365,7 +362,8 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
 			   all 32 bits of 'nseconds'. */
 			READ_BUF(12);
 			len += 12;
-			READ64(iattr->ia_atime.tv_sec);
+			p = xdr_decode_hyper(p, &sec);
+			iattr->ia_atime.tv_sec = (time_t)sec;
 			iattr->ia_atime.tv_nsec = be32_to_cpup(p++);
 			if (iattr->ia_atime.tv_nsec >= (u32)1000000000)
 				return nfserr_inval;
@@ -388,7 +386,8 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
 			   all 32 bits of 'nseconds'. */
 			READ_BUF(12);
 			len += 12;
-			READ64(iattr->ia_mtime.tv_sec);
+			p = xdr_decode_hyper(p, &sec);
+			iattr->ia_mtime.tv_sec = sec;
 			iattr->ia_mtime.tv_nsec = be32_to_cpup(p++);
 			if (iattr->ia_mtime.tv_nsec >= (u32)1000000000)
 				return nfserr_inval;
@@ -583,7 +582,7 @@ nfsd4_decode_commit(struct nfsd4_compoundargs *argp, struct nfsd4_commit *commit
 	DECODE_HEAD;
 
 	READ_BUF(12);
-	READ64(commit->co_offset);
+	p = xdr_decode_hyper(p, &commit->co_offset);
 	commit->co_count = be32_to_cpup(p++);
 
 	DECODE_TAIL;
@@ -671,8 +670,8 @@ nfsd4_decode_lock(struct nfsd4_compoundargs *argp, struct nfsd4_lock *lock)
 	if ((lock->lk_type < NFS4_READ_LT) || (lock->lk_type > NFS4_WRITEW_LT))
 		goto xdr_error;
 	lock->lk_reclaim = be32_to_cpup(p++);
-	READ64(lock->lk_offset);
-	READ64(lock->lk_length);
+	p = xdr_decode_hyper(p, &lock->lk_offset);
+	p = xdr_decode_hyper(p, &lock->lk_length);
 	lock->lk_is_new = be32_to_cpup(p++);
 
 	if (lock->lk_is_new) {
@@ -707,8 +706,8 @@ nfsd4_decode_lockt(struct nfsd4_compoundargs *argp, struct nfsd4_lockt *lockt)
 	lockt->lt_type = be32_to_cpup(p++);
 	if((lockt->lt_type < NFS4_READ_LT) || (lockt->lt_type > NFS4_WRITEW_LT))
 		goto xdr_error;
-	READ64(lockt->lt_offset);
-	READ64(lockt->lt_length);
+	p = xdr_decode_hyper(p, &lockt->lt_offset);
+	p = xdr_decode_hyper(p, &lockt->lt_length);
 	COPYMEM(&lockt->lt_clientid, 8);
 	lockt->lt_owner.len = be32_to_cpup(p++);
 	READ_BUF(lockt->lt_owner.len);
@@ -731,8 +730,8 @@ nfsd4_decode_locku(struct nfsd4_compoundargs *argp, struct nfsd4_locku *locku)
 	if (status)
 		return status;
 	READ_BUF(16);
-	READ64(locku->lu_offset);
-	READ64(locku->lu_length);
+	p = xdr_decode_hyper(p, &locku->lu_offset);
+	p = xdr_decode_hyper(p, &locku->lu_length);
 
 	DECODE_TAIL;
 }
@@ -1018,7 +1017,7 @@ nfsd4_decode_read(struct nfsd4_compoundargs *argp, struct nfsd4_read *read)
 	if (status)
 		return status;
 	READ_BUF(12);
-	READ64(read->rd_offset);
+	p = xdr_decode_hyper(p, &read->rd_offset);
 	read->rd_length = be32_to_cpup(p++);
 
 	DECODE_TAIL;
@@ -1030,7 +1029,7 @@ nfsd4_decode_readdir(struct nfsd4_compoundargs *argp, struct nfsd4_readdir *read
 	DECODE_HEAD;
 
 	READ_BUF(24);
-	READ64(readdir->rd_cookie);
+	p = xdr_decode_hyper(p, &readdir->rd_cookie);
 	COPYMEM(readdir->rd_verf.data, sizeof(readdir->rd_verf.data));
 	readdir->rd_dircount = be32_to_cpup(p++);
 	readdir->rd_maxcount = be32_to_cpup(p++);
@@ -1203,7 +1202,7 @@ nfsd4_decode_write(struct nfsd4_compoundargs *argp, struct nfsd4_write *write)
 	if (status)
 		return status;
 	READ_BUF(16);
-	READ64(write->wr_offset);
+	p = xdr_decode_hyper(p, &write->wr_offset);
 	write->wr_stable_how = be32_to_cpup(p++);
 	if (write->wr_stable_how > 2)
 		goto xdr_error;
-- 
2.7.4