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alex chen 1dfeb76847 ocfs2: add a mount option journal_async_commit on ocfs2 filesystem 
Add a mount option to support JBD2 feature:

JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT.  When this feature is opened, journal
commit block can be written to disk without waiting for descriptor blocks,
which can improve journal commit performance.  This option will enable
'journal_checksum' internally.

Using the fs_mark benchmark, using journal_async_commit shows a 50%
improvement, the files per second go up from 215.2 to 317.5.

test script:
fs_mark  -d  /mnt/ocfs2/  -s  10240  -n  1000

default:
FSUse%        Count         Size    Files/sec     App Overhead
     0         1000        10240        215.2            17878

with journal_async_commit option:
FSUse%        Count         Size    Files/sec     App Overhead
     0         1000        10240        317.5            17881

Signed-off-by: Alex Chen <alex.chen@huawei.com>
Signed-off-by: Weiwei Wang <wangww631@huawei.comm>
Reviewed-by: Joseph Qi <joseph.qi@huawei.com>
Reviewed-by: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-10 14:30:29 -08:00
..
ABI perf/core improvements and fixes: 2015-01-28 15:43:15 +01:00
accounting
acpi
aoe
arm Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2014-12-12 15:26:48 -08:00
arm64 arm64: Emulate CP15 Barrier instructions 2014-11-20 16:34:48 +00:00
auxdisplay
backlight
blackfin
block Merge branch 'for-3.19/core' of git://git.kernel.dk/linux-block 2014-12-13 14:14:23 -08:00
blockdev
bus-devices
cdrom
cgroups Update of Documentation/cgroups/00-INDEX 2015-01-05 09:19:32 -05:00
connector
console
cpu-freq
cpuidle
cris
crypto
development-process
device-mapper
devicetree Merge branch 'for-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2015-02-09 19:40:42 -08:00
dmaengine
DocBook media updates for v3.19-rc1 2014-12-18 20:14:49 -08:00
driver-model
dvb
early-userspace
EDID
extcon
fault-injection
fb
filesystems ocfs2: add a mount option journal_async_commit on ocfs2 filesystem 2015-02-10 14:30:29 -08:00
firmware_class
fmc
frv
gpio This is the bulk of GPIO changes for the v3.19 series: 2014-12-14 14:05:05 -08:00
hid
hwmon hwmon: (ina2xx) Add ina231 compatible string 2015-01-25 21:23:59 -08:00
i2c Documentation: i2c: Use PM ops instead of legacy suspend/resume 2014-12-04 19:09:03 +01:00
i2o
ia64 kvm: Documentation: remove ia64 2014-11-20 11:08:55 +01:00
ide
infiniband
input Docs changes for the 3.19 merge window 2014-12-12 14:42:48 -08:00
ioctl
isdn
ja_JP
kbuild
kdump kernel: add panic_on_warn 2014-12-10 17:41:10 -08:00
ko_KR
laptops
leds
locking locking/Documentation: Update code path 2015-01-16 09:09:21 +01:00
m68k
memory-devices
metag
mic Documentation: Build mic/mpssd only for x86_64 2014-12-05 11:18:36 -05:00
mips
misc-devices
mmc
mn10300
mtd
namespaces
netlabel
networking Documentation: Update netlink_mmap.txt 2015-02-02 18:50:00 -08:00
nfc
nios2 Documentation: Add documentation for Nios2 architecture 2014-12-08 12:56:06 +08:00
parisc
PCI
pcmcia
phy
platform
power Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 2014-12-12 15:26:48 -08:00
powerpc
pps
prctl
pti
ptp
rapidio
RCU Merge branches 'doc.2015.01.07a', 'fixes.2015.01.15a', 'preempt.2015.01.06a', 'srcu.2015.01.06a', 'stall.2015.01.16a' and 'torture.2015.01.11a' into HEAD 2015-01-15 23:34:34 -08:00
s390
scheduler
scsi Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2014-12-12 10:08:06 -08:00
security
serial
sh
sound ALSA: hda - Add "eapd" model string for AD1986A codec 2014-12-10 14:00:13 +01:00
spi
sysctl ipc/msg: increase MSGMNI, remove scaling 2014-12-13 12:42:52 -08:00
target Documentation/target: Update fabric_ops to latest code 2015-01-06 13:46:49 -08:00
thermal Documentation: thermal: document of_cpufreq_cooling_register() 2015-01-06 14:39:17 -04:00
timers
tpm
trace Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
usb USB patches for 3.19-rc1 2014-12-14 14:57:16 -08:00
vDSO
video4linux [media] vivid.txt: document new controls 2014-12-16 23:21:37 -02:00
virtual Second round of changes for KVM for arm/arm64 for v3.19; fixes reboot 2014-12-15 13:06:40 +01:00
vm Merge branch 'akpm' (second patch-bomb from Andrew) 2014-12-13 13:00:36 -08:00
w1
watchdog
wimax
x86 x86, entry: Switch stacks on a paranoid entry from userspace 2015-01-02 10:22:45 -08:00
xtensa
zh_CN
00-INDEX
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
BUG-HUNTING
bus-virt-phys-mapping.txt
cachetlb.txt
Changes Update old iproute2 and Xen Remus links 2014-12-09 13:38:13 -05:00
circular-buffers.txt
clk.txt clk: Change clk_ops->determine_rate to return a clk_hw as the best parent 2014-12-03 16:21:37 -08:00
coccinelle.txt
CodingStyle CodingStyle: add some more error handling guidelines 2014-12-02 08:55:32 -05:00
cpu-hotplug.txt
cpu-load.txt
cputopology.txt
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt
digsig.txt
DMA-API-HOWTO.txt
DMA-API.txt
DMA-attributes.txt
dma-buf-sharing.txt
DMA-ISA-LPC.txt
dontdiff
dynamic-debug-howto.txt
edac.txt
efi-stub.txt
eisa.txt
email-clients.txt Documentation/email-clients.txt: add info about Claws Mail 2014-12-02 11:55:29 -05:00
flexible-arrays.txt
futex-requeue-pi.txt doc: Fix misnamed FUTEX_CMP_REQUEUE_PI op constants 2015-01-19 12:05:32 +01:00
gcov.txt
highuid.txt
HOWTO
hsi.txt
hw_random.txt
hwspinlock.txt
init.txt
initrd.txt
Intel-IOMMU.txt
intel_txt.txt
io-mapping.txt
io_ordering.txt
iostats.txt
IPMI.txt ipmi: Add SMBus interface driver (SSIF) 2014-12-11 15:04:11 -06:00
IRQ-affinity.txt
IRQ-domain.txt irqdomain: Introduce new interfaces to support hierarchy irqdomains 2014-11-23 13:01:45 +01:00
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt
kernel-docs.txt
kernel-parameters.txt Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2015-01-19 04:55:23 +12:00
kernel-per-CPU-kthreads.txt
kmemcheck.txt
kmemleak.txt
kobject.txt kobject: grammar fix 2014-12-08 09:07:11 -05:00
kprobes.txt
kref.txt
kselftest.txt kselftest: Move the docs to the Documentation dir 2014-11-24 10:49:54 -07:00
ldm.txt
local_ops.txt percpu: update local_ops.txt to reflect this_cpu operations 2014-12-13 12:42:53 -08:00
lockup-watchdogs.txt
logo.gif
logo.txt
lzo.txt
magic-number.txt
mailbox.txt
Makefile
ManagementStyle
md.txt
media-framework.txt
memory-barriers.txt documentation: Fix smp typo in memory-barriers.txt 2015-01-07 08:59:32 -08:00
memory-hotplug.txt
module-signing.txt
mono.txt
nommu-mmap.txt
numastat.txt
oops-tracing.txt
padata.txt
parport-lowlevel.txt
parport.txt
percpu-rw-semaphore.txt
phy.txt phy: improved lookup method 2014-11-21 19:48:50 +05:30
pi-futex.txt
pinctrl.txt
pnp.txt
preempt-locking.txt
printk-formats.txt
pwm.txt
ramoops.txt pstore-ram: Allow optional mapping with pgprot_noncached 2014-12-11 13:38:31 -08:00
rbtree.txt
remoteproc.txt
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt
rtc.txt
SAK.txt
SecurityBugs
serial-console.txt
sgi-ioc4.txt
SM501.txt
smsc_ece1099.txt
sparse.txt
stable_api_nonsense.txt
stable_kernel_rules.txt
static-keys.txt
SubmitChecklist
SubmittingDrivers
SubmittingPatches
svga.txt
sysfs-rules.txt
sysrq.txt
this_cpu_ops.txt
unaligned-memory-access.txt
unicode.txt
unshare.txt
vfio.txt
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
vme_api.txt
volatile-considered-harmful.txt
workqueue.txt
xillybus.txt
xz.txt
zorro.txt