linux-kernel - [PATCH] reuse xxx_fifo_fops for xxx_pipe

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Message-Id: <200803281609.54601.vda.linux@googlemail.com>
Date:	Fri, 28 Mar 2008 16:09:54 +0100
From:	Denys Vlasenko <vda.linux@...glemail.com>
To:	Al Viro <viro@...iv.linux.org.uk>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] reuse xxx_fifo_fops for xxx_pipe_fops

Hi Al,

I noticed that read/write/rdwr_pipe_fops are (1) const and
(2) exactly identical to xxx_fifo_fops, which are also const.

Attached patch #defines xxx_pipe_fops as aliases to xxx_fifo_fops.
Size difference:

# size linux-2.6.25-rc6*/*/pipe.o
   text    data     bss     dec     hex filename
   6534     144       0    6678    1a16 linux-2.6.25-rc6/fs/pipe.o
   5862     144       0    6006    1776 linux-2.6.25-rc6-pt/fs/pipe.o

--
vda

View attachment "reuse_fifo_ops_for_pipe_ops.diff" of type "text/x-diff" (1316 bytes)