From: Chuck Lever <cel@citi.umich.edu>
Date: Thu, 11 Aug 2005 20:25:56 +0000 (-0400)
Subject: [PATCH] RPC: separate TCP and UDP socket write paths
X-Git-Tag: v2.6.15-rc1~733^2~76
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=262965f53defd312a294b45366ea17907b6a616b;p=pandora-kernel.git

[PATCH] RPC: separate TCP and UDP socket write paths

 Split the RPC client's main socket write path into a TCP version and a UDP
 version to eliminate another dependency on the "xprt->stream" variable.

 Compiler optimization removes unneeded code from xs_sendpages, as this
 function is now called with some constant arguments.

 We can now cleanly perform transport protocol-specific return code testing
 and error recovery in each path.

 Test-plan:
 Millions of fsx operations.  Performance characterization such as
 "sio" or "iozone".  Examine oprofile results for any changes before and
 after this patch is applied.

 Version: Thu, 11 Aug 2005 16:08:46 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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