Andreas Rohner 2cc88f3a5f nilfs2: implementation of NILFS_IOCTL_SET_SUINFO ioctl ... With this ioctl the segment usage entries in the SUFILE can be updated from userspace. This is useful, because it allows the userspace GC to modify and update segment usage entries for specific segments, which enables it to avoid unnecessary write operations. If a segment needs to be cleaned, but there is no or very little reclaimable space in it, the cleaning operation basically degrades to a useless moving operation. In the end the only thing that changes is the location of the data and a timestamp in the segment usage information. With this ioctl the GC can skip the cleaning and update the segment usage entries directly instead. This is basically a shortcut to cleaning the segment. It is still necessary to read the segment summary information, but the writing of the live blocks can be skipped if it's not worth it. [konishi.ryusuke@lab.ntt.co.jp: add description of NILFS_IOCTL_SET_SUINFO ioctl] Signed-off-by: Andreas Rohner <andreas.rohner@gmx.net> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-04-03 16:21:25 -07:00
..
ABI	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2014-04-02 20:53:45 -07:00
DocBook	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2014-04-02 20:53:45 -07:00
EDID	…
PCI	Merge branch 'pci/dead-code' into next	2014-02-20 14:32:34 -07:00
RCU	documentation: Fix some inconsistencies in RTFP.txt	2014-02-17 14:56:10 -08:00
accounting	…
acpi	…
aoe	…
arm	Documentation/: update 00-INDEX files	2014-02-10 16:01:40 -08:00
arm64	arm64: Extend the PCI I/O space to 16MB	2014-02-26 11:16:27 +00:00
auxdisplay	…
backlight	…
blackfin	Documentation/: update 00-INDEX files	2014-02-10 16:01:40 -08:00
block	Documentation/: update 00-INDEX files	2014-02-10 16:01:40 -08:00
blockdev	drbd: Describe the future high-level structure of DRBD	2014-02-17 16:27:48 +01:00
bus-devices	…
cdrom	…
cgroups	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media	2014-01-31 09:31:14 -08:00
connector	connector: add portid to unicast in addition to broadcasting	2014-02-07 15:40:17 -08:00
console	…
cpu-freq	cpufreq: Add stop CPU callback to cpufreq_driver interface	2014-03-20 03:50:12 +01:00
cpuidle	…
cris	…
crypto	…
development-process	…
device-mapper	dm thin: fix Documentation for held metadata root feature	2014-03-06 14:23:35 -05:00
devicetree	rtc: sunxi: change compatibles	2014-04-03 16:21:21 -07:00
driver-model	…
dvb	[media] update Michael Krufky's email address	2014-02-04 06:34:21 -02:00
early-userspace	…
extcon	…
fault-injection	…
fb	Documentation/: update 00-INDEX files	2014-02-10 16:01:40 -08:00
filesystems	nilfs2: implementation of NILFS_IOCTL_SET_SUINFO ioctl	2014-04-03 16:21:25 -07:00
firmware_class	…
fmc	FMC: make eeprom attribute writable	2014-02-28 15:12:08 -08:00
frv	…
gpio	…
hid	HID: uhid: Add UHID_CREATE2 + UHID_INPUT2	2014-04-01 18:27:33 +02:00
hwmon	hwmon: (pmbus/ltc2978) Add support for LTM4676	2014-03-19 18:59:40 -07:00
i2c	Documentation: i2c: mention ACPI method for instantiating devices	2014-02-15 19:46:34 +01:00
i2o	…
ia64	…
ide	Documentation/: update 00-INDEX files	2014-02-10 16:01:40 -08:00
infiniband	…
input	doc: fix double words	2014-03-21 13:16:58 +01:00
ioctl	…
isdn	…
ja_JP	…
kbuild	…
kdump	…
ko_KR	…
laptops	Documentation/: update 00-INDEX files	2014-02-10 16:01:40 -08:00
leds	Documentation/: update 00-INDEX files	2014-02-10 16:01:40 -08:00
m68k	Documentation/: update 00-INDEX files	2014-02-10 16:01:40 -08:00
make	…
memory-devices	…
metag	…
mic	…
mips	…
misc-devices	Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging	2014-01-29 18:56:27 -08:00
mmc	…
mn10300	…
mtd	…
namespaces	…
netlabel	…
networking	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2014-04-02 20:53:45 -07:00
nfc	…
parisc	…
pcmcia	…
phy	phy: Add new Exynos USB 2.0 PHY driver	2014-03-08 12:39:44 +05:30
power	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2014-04-02 16:23:38 -07:00
powerpc	…
pps	…
prctl	…
pti	…
ptp	ptp: Fix compiler warnings in the testptp utility	2014-03-27 14:51:47 -04:00
rapidio	…
s390	Documentation/: update 00-INDEX files	2014-02-10 16:01:40 -08:00
scheduler	Documentation/: update 00-INDEX files	2014-02-10 16:01:40 -08:00
scsi	[SCSI] megaraid_sas: Version and Changelog update	2014-03-15 10:19:21 -07:00
security	doc: fix double words	2014-03-21 13:16:58 +01:00
serial	Documentation/: update 00-INDEX files	2014-02-10 16:01:40 -08:00
sh	…
sound	x86, platforms: Remove SGI Visual Workstation	2014-02-27 08:07:39 -08:00
spi	Merge remote-tracking branches 'spi/topic/s3c64xx', 'spi/topic/sc18is602', 'spi/topic/sh-hspi', 'spi/topic/sh-msiof', 'spi/topic/sh-sci', 'spi/topic/sirf' and 'spi/topic/spidev' into spi-next	2014-03-30 00:51:34 +00:00
sysctl	drop_caches: add some documentation and info message	2014-04-03 16:21:04 -07:00
target	…
thermal	…
timers	Documentation/: update 00-INDEX files	2014-02-10 16:01:40 -08:00
tpm	…
trace	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2014-04-02 16:23:38 -07:00
usb	doc: fix double words	2014-03-21 13:16:58 +01:00
vDSO	…
video4linux	…
virtual	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2014-04-02 16:23:38 -07:00
vm	doc: fix double words	2014-03-21 13:16:58 +01:00
w1	Merge 3.14-rc3 into char-misc-next	2014-02-18 08:09:40 -08:00
watchdog	watchdog: it87_wdt: Work around non-working CIR interrupts	2014-03-31 13:33:55 +02:00
wimax	…
x86	x86, boot: Correct max ramdisk size name	2014-03-13 15:32:42 -07:00
xtensa	…
zh_CN	Documentation:Update Documentation/zh_CN/arm64/memory.txt	2014-02-07 15:24:31 -08:00
.gitignore	…
00-INDEX	Merge branch 'x86-nuke-platforms-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-04-02 13:15:58 -07:00
BUG-HUNTING	…
Changes	…
CodingStyle	…
DMA-API-HOWTO.txt	…
DMA-API.txt	…
DMA-ISA-LPC.txt	…
DMA-attributes.txt	…
HOWTO	…
IPMI.txt	…
IRQ-affinity.txt	…
IRQ-domain.txt	…
IRQ.txt	…
Intel-IOMMU.txt	…
Makefile	…
ManagementStyle	…
SAK.txt	…
SM501.txt	…
SecurityBugs	…
SubmitChecklist	…
SubmittingDrivers	…
SubmittingPatches	SubmittingPatches: document the use of git	2014-04-03 16:21:06 -07:00
VGA-softcursor.txt	…
applying-patches.txt	…
assoc_array.txt	…
atomic_ops.txt	…
bad_memory.txt	…
basic_profiling.txt	…
bcache.txt	…
binfmt_misc.txt	…
braille-console.txt	…
bt8xxgpio.txt	…
btmrvl.txt	…
bus-virt-phys-mapping.txt	…
cachetlb.txt	…
circular-buffers.txt	…
clk.txt	…
coccinelle.txt	…
cpu-hotplug.txt	…
cpu-load.txt	…
cputopology.txt	…
crc32.txt	…
dcdbas.txt	…
debugging-modules.txt	…
debugging-via-ohci1394.txt	…
dell_rbu.txt	…
devices.txt	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2014-04-02 20:53:45 -07:00
digsig.txt	…
dma-buf-sharing.txt	…
dmaengine.txt	…
dmatest.txt	…
dontdiff	…
dynamic-debug-howto.txt	…
edac.txt	…
efi-stub.txt	…
eisa.txt	…
email-clients.txt	…
flexible-arrays.txt	…
futex-requeue-pi.txt	doc: fix double words	2014-03-21 13:16:58 +01:00
gcov.txt	…
highuid.txt	…
hw_random.txt	…
hwspinlock.txt	…
init.txt	…
initrd.txt	…
intel_txt.txt	…
io-mapping.txt	…
io_ordering.txt	…
iostats.txt	…
irqflags-tracing.txt	…
isapnp.txt	…
java.txt	…
kernel-doc-nano-HOWTO.txt	…
kernel-docs.txt	…
kernel-parameters.txt	More ACPI and power management updates for 3.15-rc1	2014-04-02 14:10:21 -07:00
kernel-per-CPU-kthreads.txt	Documentation/kernel-per-CPU-kthreads.txt: Workqueue affinity	2014-02-17 14:56:08 -08:00
kmemcheck.txt	doc: fix double words	2014-03-21 13:16:58 +01:00
kmemleak.txt	kmemleak: allow freeing internal objects after kmemleak was disabled	2014-04-03 16:20:50 -07:00
kobject.txt	…
kprobes.txt	…
kref.txt	…
ldm.txt	…
local_ops.txt	…
lockdep-design.txt	…
lockstat.txt	…
lockup-watchdogs.txt	…
logo.gif	…
logo.txt	…
magic-number.txt	…
md.txt	…
media-framework.txt	…
memory-barriers.txt	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2014-04-02 16:23:38 -07:00
memory-hotplug.txt	…
module-signing.txt	doc: Insert MODULE_ in module-signing macros	2014-02-20 14:55:04 +01:00
mono.txt	…
mutex-design.txt	…
nommu-mmap.txt	…
numastat.txt	…
oops-tracing.txt	…
padata.txt	…
parport-lowlevel.txt	…
parport.txt	…
percpu-rw-semaphore.txt	…
phy.txt	drivers: phy: Add support for optional phys	2014-02-05 05:48:43 +00:00
pi-futex.txt	…
pinctrl.txt	…
pnp.txt	…
preempt-locking.txt	…
printk-formats.txt	…
pwm.txt	…
ramoops.txt	…
rbtree.txt	…
remoteproc.txt	…
rfkill.txt	…
robust-futex-ABI.txt	…
robust-futexes.txt	…
rpmsg.txt	…
rt-mutex-design.txt	…
rt-mutex.txt	…
rtc.txt	…
serial-console.txt	…
sgi-ioc4.txt	…
smsc_ece1099.txt	…
sparse.txt	…
spinlocks.txt	…
stable_api_nonsense.txt	…
stable_kernel_rules.txt	…
static-keys.txt	…
svga.txt	…
sysfs-rules.txt	…
sysrq.txt	…
this_cpu_ops.txt	…
unaligned-memory-access.txt	…
unicode.txt	…
unshare.txt	…
vfio.txt	…
vgaarbiter.txt	…
video-output.txt	…
vme_api.txt	…
volatile-considered-harmful.txt	…
workqueue.txt	…
ww-mutex-design.txt	…
xz.txt	…
zorro.txt	…