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author\"Talpey, Thomas\ <Thomas.Talpey@netapp.com>2007-09-10 13:44:58 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2007-10-09 17:17:34 -0400
commit4f22ccc3460ef65e9899ec271d36fc4ef795c68d (patch)
tree613a7a135cd11e5254362e41ab2b05f707901c19 /include/linux/sunrpc/xdr.h
parent20c71f5e0f954b00d75009542db2c1f844d94a1e (diff)
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SUNRPC: mark bulk read/write data in xdrbuf
Adds a flag word to the xdrbuf struct which indicates any bulk disposition of the data. This enables RPC transport providers to marshal it efficiently/appropriately, and may enable other optimizations. Signed-off-by: Tom Talpey <tmt@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/sunrpc/xdr.h')
-rw-r--r--include/linux/sunrpc/xdr.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index c6b53d181bf..0751c9464d0 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -70,7 +70,10 @@ struct xdr_buf {
struct page ** pages; /* Array of contiguous pages */
unsigned int page_base, /* Start of page data */
- page_len; /* Length of page data */
+ page_len, /* Length of page data */
+ flags; /* Flags for data disposition */
+#define XDRBUF_READ 0x01 /* target of file read */
+#define XDRBUF_WRITE 0x02 /* source of file write */
unsigned int buflen, /* Total length of storage buffer */
len; /* Length of XDR encoded message */