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Doug Ledford 3312d1c6bd RDMA/umem: Minor optimizations 
Noticed while reviewing commit d4b4dd1b9706 ("RDMA/umem: Do not use
current->tgid to track the mm_struct") patch.  Why would we take a lock,
adjust a protected variable, drop the lock, and *then* check the input
into our protected variable adjustment?  Then we have to take the lock
again on our error unwind.  Let's just check the input early and skip
taking the locks needlessly if the input isn't valid.

It was also noticed that we set mm = current->mm, we then never modify
mm, but we still go back and reference current->mm a number of times
needlessly.  Be consistent in using the stored reference in mm.

Signed-off-by: Doug Ledford <dledford@redhat.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-09-25 15:19:06 -06:00
..
accessibility
…
acpi
libnvdimm-for-4.19_misc
2018-08-25 18:13:10 -07:00
amba
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android
android: binder: Rate-limit debug and userspace triggered err msgs
2018-08-08 11:05:47 +02:00
ata
ata: ftide010: Add a quirk for SQ201
2018-08-27 14:25:54 -06:00
atm
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auxdisplay
Char/Misc driver patches for 4.19-rc1
2018-08-18 11:04:51 -07:00
base
PM / clk: signedness bug in of_pm_clk_add_clks()
2018-08-24 11:52:34 +02:00
bcma
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block
for-linus-20180830
2018-08-30 13:39:04 -07:00
bluetooth
Bluetooth: mediatek: Fix memory leak
2018-08-21 16:56:20 +02:00
bus
Merge branch 'perm-fix' into omap-for-v4.19/fixes-v2
2018-08-28 09:58:03 -07:00
cdrom
cdrom: Fix info leak/OOB read in cdrom_ioctl_drive_status
2018-08-29 08:09:20 -06:00
char
RTC for 4.19
2018-08-20 16:30:27 -07:00
clk
clk: x86: Set default parent to 48Mhz
2018-08-30 14:47:41 -07:00
clocksource
RISC-V Updates for the 4.19 Merge Window
2018-08-19 09:56:38 -07:00
connector
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cpufreq
ARM: SoC driver updates
2018-08-23 13:52:46 -07:00
cpuidle
cpuidle: menu: Retain tick when shallow state is selected
2018-08-25 13:16:08 +02:00
crypto
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2018-08-29 13:38:39 -07:00
dax
libnvdimm-for-4.19_dax-memory-failure
2018-08-25 18:43:59 -07:00
dca
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devfreq
Char/Misc driver patches for 4.19-rc1
2018-08-18 11:04:51 -07:00
dio
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dma
Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax
2018-08-26 11:48:42 -07:00
dma-buf
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edac
EDAC: Add missing MEM_LRDDR4 entry in edac_mem_types[]
2018-08-17 15:13:34 +02:00
eisa
…
extcon
…
firewire
firewire: use 64-bit time_t based interfaces
2018-08-17 16:20:27 -07:00
firmware
fbdev changes for v4.19:
2018-08-23 15:44:58 -07:00
fmc
…
fpga
…
fsi
fsi: sbefifo: Bump max command length
2018-08-08 15:44:47 +10:00
gnss
…
gpio
- New Drivers
2018-08-20 15:38:44 -07:00
gpu
- fix for GLK and CNL watermark workaround
2018-08-30 11:35:03 +10:00
hid
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
2018-08-20 15:59:01 -07:00
hsi
…
hv
Drivers: hv: vmbus: Cleanup synic memory free path
2018-08-02 10:20:59 +02:00
hwmon
hwmon: (nct6775) Fix potential Spectre v1
2018-08-26 17:45:25 -07:00
hwspinlock
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hwtracing
drivers/hwtracing/intel_th/msu.c: change return type to vm_fault_t
2018-08-23 18:48:43 -07:00
i2c
i2c: sh_mobile: fix leak when using DMA bounce buffer
2018-08-30 23:13:59 +02:00
ide
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide
2018-08-22 07:40:33 -07:00
idle
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iio
treewide: convert ISO_8859-1 text comments to utf-8
2018-08-23 18:48:43 -07:00
infiniband
RDMA/umem: Minor optimizations
2018-09-25 15:19:06 -06:00
input
ARM: 32-bit SoC platform updates
2018-08-23 13:44:43 -07:00
iommu
ARM: SoC: late updates
2018-08-25 14:12:36 -07:00
ipack
…
irqchip
Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-08-26 09:55:28 -07:00
isdn
isdn: Disable IIOCDBGVAR
2018-08-16 12:26:24 -07:00
leds
leds: ns2: Change unsigned to unsigned int
2018-08-06 23:03:12 +02:00
lightnvm
…
macintosh
macintosh: therm_windtunnel: drop using attach_adapter
2018-08-24 14:42:42 +02:00
mailbox
mailbox: Add support for i.MX messaging unit
2018-08-15 09:53:07 +05:30
mcb
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md
libnvdimm-for-4.19_misc
2018-08-25 18:13:10 -07:00
media
Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax
2018-08-26 11:48:42 -07:00
memory
ARM: SoC driver updates
2018-08-23 13:52:46 -07:00
memstick
…
message
…
mfd
Merge branch 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2018-08-21 17:40:46 -07:00
misc
Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax
2018-08-26 11:48:42 -07:00
mmc
mmc: renesas_sdhi_internal_dmac: mask DMAC interrupts
2018-08-23 10:00:49 +02:00
mtd
mtd: rawnand: denali: do not pass zero maxchips to nand_scan()
2018-08-27 20:41:46 +02:00
mux
mux: adgs1408: new driver for Analog Devices ADGS1408/1409 mux
2018-08-02 10:23:02 +02:00
net
Merge branch 'mellanox/mlx5-next' into rdma.git for-next
2018-09-25 14:02:48 -06:00
nfc
…
ntb
…
nubus
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nvdimm
libnvdimm-for-4.19_dax-memory-failure
2018-08-25 18:43:59 -07:00
nvme
nvmet: free workqueue object if module init fails
2018-08-28 08:40:44 +02:00
nvmem
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of
of: add node name compare helper functions
2018-08-30 13:53:05 -05:00
opp
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oprofile
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parisc
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parport
Char/Misc driver patches for 4.19-rc1
2018-08-18 11:04:51 -07:00
pci
Merge branch 'akpm' (patches from Andrew)
2018-08-22 12:34:08 -07:00
pcmcia
pcmcia: remove long deprecated pcmcia_request_exclusive_irq() function
2018-08-18 12:30:42 -07:00
perf
Char/Misc driver patches for 4.19-rc1
2018-08-18 11:04:51 -07:00
phy
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pinctrl
- New Drivers
2018-08-20 15:38:44 -07:00
platform
platform-drivers-x86 for v4.19-1
2018-08-22 14:14:15 -07:00
pnp
…
power
treewide: convert ISO_8859-1 text comments to utf-8
2018-08-23 18:48:43 -07:00
powercap
…
pps
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ps3
…
ptp
Char/Misc driver patches for 4.19-rc1
2018-08-18 11:04:51 -07:00
pwm
pwm: mediatek: Add MT7628 support
2018-08-20 11:36:07 +02:00
rapidio
drivers/rapidio/devices/rio_mport_cdev.c: remove redundant pointer md
2018-08-22 10:52:51 -07:00
ras
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regulator
- New Drivers
2018-08-20 15:38:44 -07:00
remoteproc
remoteproc/davinci: use the reset framework
2018-08-16 17:39:55 -07:00
reset
ARM: SoC: late updates
2018-08-25 14:12:36 -07:00
rpmsg
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rtc
RTC for 4.19
2018-08-20 16:30:27 -07:00
s390
libnvdimm-for-4.19_misc
2018-08-25 18:13:10 -07:00
sbus
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scsi
Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax
2018-08-26 11:48:42 -07:00
sfi
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sh
sh: introduce a sh_cacheop_vaddr helper
2018-08-02 13:54:06 +02:00
siox
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slimbus
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sn
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soc
ARM: Device-tree updates
2018-08-23 14:02:22 -07:00
soundwire
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spi
hwspinlock updates for v4.19
2018-08-18 16:45:27 -07:00
spmi
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ssb
ssb: Remove SSB_WARN_ON, SSB_BUG_ON and SSB_DEBUG
2018-08-09 18:47:47 +03:00
staging
ARM: SoC driver updates
2018-08-23 13:52:46 -07:00
target
Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax
2018-08-26 11:48:42 -07:00
tc
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tee
ARM: SoC driver updates
2018-08-23 13:52:46 -07:00
thermal
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
2018-08-28 16:11:34 -07:00
thunderbolt
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tty
powerpc fixes for 4.19 #2
2018-08-24 09:34:23 -07:00
uio
Char/Misc fix for 4.19-rc1
2018-08-19 09:30:44 -07:00
usb
ARM: SoC driver updates
2018-08-23 13:52:46 -07:00
uwb
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vfio
powerpc updates for 4.19
2018-08-17 11:32:50 -07:00
vhost
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-08-27 11:59:39 -07:00
video
fbdev changes for v4.19:
2018-08-23 15:44:58 -07:00
virt
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virtio
virtio, vhost: fixes, tweaks
2018-08-24 08:45:19 -07:00
visorbus
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vlynq
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vme
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w1
power supply and reset changes for the v4.19 series
2018-08-21 18:06:27 -07:00
watchdog
include/linux/compiler*.h: make compiler-*.h mutually exclusive
2018-08-22 17:31:34 -07:00
xen
xen: fixes for 4.19-rc2
2018-08-31 08:45:16 -07:00
zorro
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Kconfig
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Makefile
Char/Misc driver patches for 4.19-rc1
2018-08-18 11:04:51 -07:00