Revision 033369d1af1264abc23bea2e174aa47cdd212f6f authored by Artem Bityutskiy on 01 June 2012, 14:18:08 UTC, committed by Al Viro on 01 June 2012, 14:37:36 UTC
This patch stops reiserfs using the VFS 'write_super()' method along with the
s_dirt flag, because they are on their way out.

The whole "superblock write-out" VFS infrastructure is served by the
'sync_supers()' kernel thread, which wakes up every 5 (by default) seconds and
writes out all dirty superblock using the '->write_super()' call-back.  But the
problem with this thread is that it wastes power by waking up the system every
5 seconds, even if there are no diry superblocks, or there are no client
file-systems which would need this (e.g., btrfs does not use
'->write_super()'). So we want to kill it completely and thus, we need to make
file-systems to stop using the '->write_super()' VFS service, and then remove
it together with the kernel thread.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
1 parent 5c5fd81
History
File Mode Size
Kconfig -rw-r--r-- 14.1 KB
Makefile -rw-r--r-- 2.4 KB
dell-led.c -rw-r--r-- 4.2 KB
led-class.c -rw-r--r-- 6.0 KB
led-core.c -rw-r--r-- 2.3 KB
led-triggers.c -rw-r--r-- 7.3 KB
leds-88pm860x.c -rw-r--r-- 6.2 KB
leds-adp5520.c -rw-r--r-- 5.4 KB
leds-asic3.c -rw-r--r-- 4.6 KB
leds-atmel-pwm.c -rw-r--r-- 3.6 KB
leds-bd2802.c -rw-r--r-- 20.8 KB
leds-clevo-mail.c -rw-r--r-- 5.5 KB
leds-cobalt-qube.c -rw-r--r-- 2.0 KB
leds-cobalt-raq.c -rw-r--r-- 3.3 KB
leds-da903x.c -rw-r--r-- 4.3 KB
leds-dac124s085.c -rw-r--r-- 3.1 KB
leds-fsg.c -rw-r--r-- 5.1 KB
leds-gpio-register.c -rw-r--r-- 1.3 KB
leds-gpio.c -rw-r--r-- 7.4 KB
leds-hp6xx.c -rw-r--r-- 2.2 KB
leds-lm3530.c -rw-r--r-- 12.5 KB
leds-locomo.c -rw-r--r-- 2.3 KB
leds-lp3944.c -rw-r--r-- 10.9 KB
leds-lp5521.c -rw-r--r-- 23.0 KB
leds-lp5523.c -rw-r--r-- 26.4 KB
leds-lt3593.c -rw-r--r-- 4.9 KB
leds-max8997.c -rw-r--r-- 9.0 KB
leds-mc13783.c -rw-r--r-- 10.2 KB
leds-net48xx.c -rw-r--r-- 2.1 KB
leds-netxbig.c -rw-r--r-- 10.6 KB
leds-ns2.c -rw-r--r-- 7.9 KB
leds-ot200.c -rw-r--r-- 3.0 KB
leds-pca9532.c -rw-r--r-- 12.1 KB
leds-pca955x.c -rw-r--r-- 9.5 KB
leds-pca9633.c -rw-r--r-- 4.7 KB
leds-pwm.c -rw-r--r-- 3.3 KB
leds-rb532.c -rw-r--r-- 1.5 KB
leds-regulator.c -rw-r--r-- 5.1 KB
leds-renesas-tpu.c -rw-r--r-- 8.9 KB
leds-s3c24xx.c -rw-r--r-- 3.1 KB
leds-ss4200.c -rw-r--r-- 14.4 KB
leds-sunfire.c -rw-r--r-- 6.0 KB
leds-tca6507.c -rw-r--r-- 20.1 KB
leds-wm831x-status.c -rw-r--r-- 7.6 KB
leds-wm8350.c -rw-r--r-- 5.7 KB
leds-wrap.c -rw-r--r-- 3.2 KB
leds.h -rw-r--r-- 1.6 KB
ledtrig-backlight.c -rw-r--r-- 3.6 KB
ledtrig-default-on.c -rw-r--r-- 1.0 KB
ledtrig-gpio.c -rw-r--r-- 6.1 KB
ledtrig-heartbeat.c -rw-r--r-- 3.1 KB
ledtrig-ide-disk.c -rw-r--r-- 1.6 KB
ledtrig-timer.c -rw-r--r-- 3.3 KB

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