Shaohua Li 9fe207732b swap: make each swap partition have one address_space ...

When I use several fast SSD to do swap, swapper_space.tree_lock is
heavily contended.  This makes each swap partition have one
address_space to reduce the lock contention.  There is an array of
address_space for swap.  The swap entry type is the index to the array.

In my test with 3 SSD, this increases the swapout throughput 20%.

[akpm@linux-foundation.org: revert unneeded change to  __add_to_swap_cache]
Signed-off-by: Shaohua Li <shli@fusionio.com>
Cc: Hugh Dickins <hughd@google.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Change-Id: I8ad2d301866b2873562a46df2952cf562b2b5aab
Signed-off-by: Kevin F. Haggerty <haggertk@lineageos.org>

2019-08-06 08:17:37 +02:00

..

altera-stapl

…

c2port

…

carma

…

cb710

…

dualwave

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

eeprom

…

ibmasm

…

iwmc3200top

…

lis3lv02d

…

modem_if

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

sgi-gru

…

sgi-xp

Merge tag 'v3.4.113' into lineage-16.0

2019-08-05 14:20:47 +02:00

ti-st

…

ab8500-pwm.c

…

ad525x_dpot-i2c.c

…

ad525x_dpot-spi.c

…

ad525x_dpot.c

…

ad525x_dpot.h

…

akm8975.c

…

apds990x.c

…

apds9802als.c

…

arm-charlcd.c

…

atmel_pwm.c

…

atmel_tclib.c

…

atmel-ssc.c

…

bcm2079x-i2c.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

bh1770glc.c

…

bh1780gli.c

…

bmp085.c

…

ci-bridge-spi.c

…

cs5535-mfgpt.c

…

ds1682.c

…

enclosure.c

Merge tag 'v3.4.113' into lineage-16.0

2019-08-05 14:20:47 +02:00

ep93xx_pwm.c

…

fsa9480.c

…

fsa9485.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

hmc6352.c

…

hpilo.c

Merge tag 'v3.4.113' into lineage-16.0

2019-08-05 14:20:47 +02:00

hpilo.h

…

ice40xx.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

ics932s401.c

…

ioc4.c

…

isa1200.c

misc: isa1200: correct overdrive enablement bit shift

2014-01-21 16:50:50 -08:00

isl29003.c

…

isl29020.c

…

Kconfig

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

kgdbts.c

…

lkdtm.c

…

Makefile

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

max8997-muic.c

…

max77803-muic.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

max77804k-muic.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

max77828-muic.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

max77888-muic.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

msm_migrate_pages.c

…

pch_phub.c

…

phantom.c

…

pm8xxx-nfc.c

…

pm8xxx-upl.c

…

pm8xxx-vibrator.c

…

pmic8058-pwm.c

…

pmic8058-xoadc.c

…

pn547.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

pti.c

…

qfp_fuse.c

misc: qfpfuse: validate ioctl input parameters

2014-03-18 17:37:46 +05:30

qpnp-misc.c

…

qseecom_kernel.h

…

qseecom_legacy.h

…

qseecom.c

Merge tag 'LA.BF.1.1.3-02310-8x26.0' into lineage-16.0

2019-08-05 11:18:51 +02:00

rt8973.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

sec_jack.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

sec_misc.c

swap: make each swap partition have one address_space

2019-08-06 08:17:37 +02:00

sec_nfc.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

sec_param.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

sim_slot.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

sim_slot.h

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

sm5502.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

sm5504.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

smsc_hub.c

USB: HSIC SMSC HUB: Add support for 3502 model

2014-02-25 13:46:47 +05:30

spear13xx_pcie_gadget.c

…

ti_dac7512.c

…

ti_drv2667.c

…

tifm_7xx1.c

…

tifm_core.c

…

tima_debug_log.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

tsif_chrdev.c

…

tsif.c

…

tsl2550.c

…

tspp.c

Merge "tspp: fix bam irq request preventing sleep"

2014-07-01 08:53:34 -07:00

tsu6721.c

system_rev: fix type mismatch derps by samsung

2019-08-04 21:28:01 +02:00

tzic.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

uid_cputime.c

misc: Import SM-G900H kernel source code

2019-08-02 15:14:10 +02:00

uid_stat.c

…

vmw_balloon.c

…

wl127x-rfkill.c

…