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nfs/blocklayout: Make sure calculate signature length aligned

Avoid a bad nfs server return an unaligned length of signature.

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Kinglong Mee 9 years ago
parent
11487ddbdb
commit
ecc2b88c4a
1 changed files with 2 additions and 1 deletions
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  1. 2 1
      fs/nfs/blocklayout/dev.c

+ 2 - 1
fs/nfs/blocklayout/dev.c
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@@ -89,7 +89,8 @@ nfs4_block_decode_volume(struct xdr_stream *xdr, struct pnfs_block_volume *b)
 
 			memcpy(&b->simple.sigs[i].sig, p,
 
 			memcpy(&b->simple.sigs[i].sig, p,
 
 				b->simple.sigs[i].sig_len);
 
 				b->simple.sigs[i].sig_len);
 
 
 
-			b->simple.len += 8 + 4 + b->simple.sigs[i].sig_len;
 
+			b->simple.len += 8 + 4 + \
 
+				(XDR_QUADLEN(b->simple.sigs[i].sig_len) << 2);
 
 		}
 
 		}
 
 		break;
 
 		break;
 
 	case PNFS_BLOCK_VOLUME_SLICE:
 
 	case PNFS_BLOCK_VOLUME_SLICE: