linux/fs/notify/Kconfig at 3c68319b28474055481824032e6730c28404116f - system/linux - HydraGit

system/linux

mirror of https://github.com/torvalds/linux synced 2024-11-05 18:23:50 +00:00

Pranith Kumar 83fe27ea53 rcu: Make SRCU optional by using CONFIG_SRCU

SRCU is not necessary to be compiled by default in all cases. For tinification
efforts not compiling SRCU unless necessary is desirable.

The current patch tries to make compiling SRCU optional by introducing a new
Kconfig option CONFIG_SRCU which is selected when any of the components making
use of SRCU are selected.

If we do not select CONFIG_SRCU, srcu.o will not be compiled at all.

   text    data     bss     dec     hex filename
   2007       0       0    2007     7d7 kernel/rcu/srcu.o

Size of arch/powerpc/boot/zImage changes from

   text    data     bss     dec     hex filename
 831552   64180   23944  919676   e087c arch/powerpc/boot/zImage : before
 829504   64180   23952  917636   e0084 arch/powerpc/boot/zImage : after

so the savings are about ~2000 bytes.

Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
CC: Josh Triplett <josh@joshtriplett.org>
CC: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
[ paulmck: resolve conflict due to removal of arch/ia64/kvm/Kconfig. ]

2015-01-06 11:04:29 -08:00

7 lines

148 B

Text

Raw Blame History

 config FSNOTIFY
 	def_bool n
 	select SRCU
 source "fs/notify/dnotify/Kconfig"
 source "fs/notify/inotify/Kconfig"
 source "fs/notify/fanotify/Kconfig"