]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
Configure out file locking features
authorThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Wed, 6 Aug 2008 13:12:22 +0000 (15:12 +0200)
committerJ. Bruce Fields <bfields@citi.umich.edu>
Mon, 29 Sep 2008 21:56:57 +0000 (17:56 -0400)
commitbfcd17a6c5529bc37234cfa720a047cf9397bcfc
treef4e087479a8c559f1a5ca3be96c64afd172e12c1
parent04716e6621ff4abb422d64ba7b48718f52716a3e
Configure out file locking features

This patch adds the CONFIG_FILE_LOCKING option which allows to remove
support for advisory locks. With this patch enabled, the flock()
system call, the F_GETLK, F_SETLK and F_SETLKW operations of fcntl()
and NFS support are disabled. These features are not necessarly needed
on embedded systems. It allows to save ~11 Kb of kernel code and data:

   text          data     bss     dec     hex filename
1125436        118764  212992 1457192  163c28 vmlinux.old
1114299        118564  212992 1445855  160fdf vmlinux
 -11137    -200       0  -11337   -2C49 +/-

This patch has originally been written by Matt Mackall
<mpm@selenic.com>, and is part of the Linux Tiny project.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: matthew@wil.cx
Cc: linux-fsdevel@vger.kernel.org
Cc: mpm@selenic.com
Cc: akpm@linux-foundation.org
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
fs/Kconfig
fs/Makefile
fs/proc/proc_misc.c
include/linux/fs.h
kernel/sys_ni.c
kernel/sysctl.c