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authorWeston Andros Adamson <dros@netapp.com>2011-06-01 03:05:47 +0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2011-07-12 21:40:27 +0400
commit78fe0f41d9937ee62817912ac8d627e06243c269 (patch)
tree7ae4ac3f9675ecbddb5ec0c4615313ae899c10da /fs/nfs/nfs4xdr.c
parent7e574f0d3911c5cc60d4d2b57fee975c462d6cd0 (diff)
downloadlinux-78fe0f41d9937ee62817912ac8d627e06243c269.tar.xz
NFS: use scope from exchange_id to skip reclaim
can be skipped if the "eir_server_scope" from the exchange_id proc differs from previous calls. Also, in the future server_scope will be useful for determining whether client trunking is available Signed-off-by: Weston Andros Adamson <dros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/nfs4xdr.c')
-rw-r--r--fs/nfs/nfs4xdr.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index e6e8f3b9a1de..1555c74dd336 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -4977,11 +4977,17 @@ static int decode_exchange_id(struct xdr_stream *xdr,
if (unlikely(status))
return status;
- /* Throw away server_scope */
+ /* Save server_scope */
status = decode_opaque_inline(xdr, &dummy, &dummy_str);
if (unlikely(status))
return status;
+ if (unlikely(dummy > NFS4_OPAQUE_LIMIT))
+ return -EIO;
+
+ memcpy(res->server_scope->server_scope, dummy_str, dummy);
+ res->server_scope->server_scope_sz = dummy;
+
/* Throw away Implementation id array */
status = decode_opaque_inline(xdr, &dummy, &dummy_str);
if (unlikely(status))