From 5280c76915f45f4479d6fe5f0b5b73984de14d04 Mon Sep 17 00:00:00 2001 From: Joe Hershberger Date: Mon, 15 Aug 2016 15:03:19 -0500 Subject: [PATCH] net: nfs: Share the file handle buffer for v2 / v3 The v3 handles can be larger than v2, but that doesn't mean we need a separate buffer. Reuse the same (larger) buffer for both. Signed-off-by: Joe Hershberger --- net/nfs.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/net/nfs.c b/net/nfs.c index f61b96e00e..ac3cde49b7 100644 --- a/net/nfs.c +++ b/net/nfs.c @@ -52,10 +52,8 @@ static int nfs_len; static ulong nfs_timeout = NFS_TIMEOUT; static char dirfh[NFS_FHSIZE]; /* NFSv2 / NFSv3 file handle of directory */ -static char filefh[NFS_FHSIZE]; /* NFSv2 file handle */ - -static char filefh3[NFS3_FHSIZE]; /* NFSv3 file handle */ -static int filefh3_length; /* (variable) length of filefh3 */ +static char filefh[NFS3_FHSIZE]; /* NFSv2 / NFSv3 file handle */ +static int filefh3_length; /* (variable) length of filefh when NFSv3 */ static enum net_loop_state nfs_download_state; static struct in_addr nfs_server_ip; @@ -316,7 +314,7 @@ static void nfs_readlink_req(void) p += (NFS_FHSIZE / 4); } else { /* NFSV3_FLAG */ *p++ = htonl(filefh3_length); - memcpy(p, filefh3, filefh3_length); + memcpy(p, filefh, filefh3_length); p += (filefh3_length / 4); } @@ -388,7 +386,7 @@ static void nfs_read_req(int offset, int readlen) *p++ = 0; } else { /* NFSV3_FLAG */ *p++ = htonl(filefh3_length); - memcpy(p, filefh3, filefh3_length); + memcpy(p, filefh, filefh3_length); p += (filefh3_length / 4); *p++ = htonl(0); /* offset is 64-bit long, so fill with 0 */ *p++ = htonl(offset); @@ -582,7 +580,7 @@ static int nfs_lookup_reply(uchar *pkt, unsigned len) filefh3_length = ntohl(rpc_pkt.u.reply.data[1]); if (filefh3_length > NFS3_FHSIZE) filefh3_length = NFS3_FHSIZE; - memcpy(filefh3, rpc_pkt.u.reply.data + 2, filefh3_length); + memcpy(filefh, rpc_pkt.u.reply.data + 2, filefh3_length); } return 0; -- 2.25.1