From: Joe Perches <joe@perches.com>
Date: Mon, 1 Jul 2013 12:12:37 +0000 (-0400)
Subject: ext4: reduce object size when !CONFIG_PRINTK
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~83^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e7c96e8e47baf263d93a8dbbebca7216a912ca05;p=pandora-kernel.git

ext4: reduce object size when !CONFIG_PRINTK

Reduce the object size ~10% could be useful for embedded systems.

Add #ifdef CONFIG_PRINTK #else #endif blocks to hold formats and
arguments, passing " " to functions when !CONFIG_PRINTK and still
verifying format and arguments with no_printk.

$ size fs/ext4/built-in.o*
   text	   data	    bss	    dec	    hex	filename
 239375	    610	    888	 240873	  3ace9	fs/ext4/built-in.o.new
 264167	    738	    888	 265793	  40e41	fs/ext4/built-in.o.old

    $ grep -E "CONFIG_EXT4|CONFIG_PRINTK" .config
    # CONFIG_PRINTK is not set
    CONFIG_EXT4_FS=y
    CONFIG_EXT4_USE_FOR_EXT23=y
    CONFIG_EXT4_FS_POSIX_ACL=y
    # CONFIG_EXT4_FS_SECURITY is not set
    # CONFIG_EXT4_DEBUG is not set

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---

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