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Eric Dumazet 99f5711e7c mlx4: do not use rwlock in fast path 
Using a reader-writer lock in fast path is silly, when we can
instead use RCU or a seqlock.

For mlx4 hwstamp clock, a seqlock is the way to go, removing
two atomic operations and false sharing.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-15 12:06:18 -05:00
..
accessibility
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acpi
Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
2017-02-06 19:36:04 -08:00
amba
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android
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ata
ata: sata_mv:- Handle return value of devm_ioremap.
2017-01-06 15:45:32 -05:00
atm
drivers: atm: eni: rename macro DAUGTHER_ID to fix spelling mistake
2016-12-29 12:07:01 -05:00
auxdisplay
auxdisplay: fix new ht16k33 build errors
2017-01-11 09:27:30 +01:00
base
Merge branches 'pm-core-fixes' and 'pm-cpufreq-fixes'
2017-02-06 14:52:10 +01:00
bcma
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-02-02 16:54:00 -05:00
block
xen-blkfront: correct maximum segment accounting
2017-01-23 13:27:42 -05:00
bluetooth
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-12-16 10:24:44 -08:00
bus
cpu/hotplug: Cleanup state names
2016-12-25 10:47:44 +01:00
cdrom
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
char
Revert "hwrng: core - zeroize buffers with random data"
2017-02-08 18:06:03 -08:00
clk
Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
2017-01-21 18:46:45 -08:00
clocksource
clocksource/exynos_mct: Clear interrupt when cpu is shut down
2017-01-17 10:08:38 +01:00
connector
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cpufreq
Merge branches 'pm-core-fixes' and 'pm-cpufreq-fixes'
2017-02-06 14:52:10 +01:00
cpuidle
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
crypto
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2017-02-06 14:16:23 -08:00
dax
Merge tag 'libnvdimm-for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
2016-12-18 15:49:10 -08:00
dca
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devfreq
PM / devfreq: exynos-bus: Fix the wrong return value
2017-01-03 00:21:45 +01:00
dio
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
dma
dmaengine: pl330: fix double lock
2017-01-25 15:35:11 +05:30
dma-buf
Revert "dma-buf/sync-file: Avoid enable fence signaling if poll(.timeout=0)"
2016-11-18 10:35:58 +01:00
edac
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
eisa
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extcon
extcon: return error code on failure
2017-01-11 09:11:39 +01:00
firewire
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-11-15 10:54:36 -05:00
firmware
efi/fdt: Avoid FDT manipulation after ExitBootServices()
2017-02-01 21:17:49 +01:00
fmc
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fpga
fpga: Clarify how write_init works streaming modes
2016-11-29 15:51:49 -06:00
gpio
gpio: provide lockdep keys for nested/unnested irqchips
2017-01-19 09:57:20 +01:00
gpu
Merge tag 'drm-intel-fixes-2017-02-09' of git://anongit.freedesktop.org/git/drm-intel into drm-fixes
2017-02-10 10:14:24 +10:00
hid
HID: cp2112: fix gpio-callback error handling
2017-01-31 12:59:33 +01:00
hsi
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hv
Drivers: hv: vmbus: finally fix hv_need_to_signal_on_read()
2017-01-31 10:59:48 +01:00
hwmon
hwmon: (lm90) fix temp1_max_alarm attribute
2017-01-02 10:15:28 -08:00
hwspinlock
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hwtracing
coresight/etm3/4x: Consolidate hotplug state space
2016-12-25 10:47:44 +01:00
i2c
i2c: piix4: Request the SMBUS semaphore inside the mutex
2017-02-09 17:13:01 +01:00
ide
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
idle
Merge tag 'pm-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2016-12-13 10:41:53 -08:00
iio
iio: dht11: Use usleep_range instead of msleep for start signal
2017-01-22 13:35:40 +00:00
infiniband
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-02-11 02:31:11 -05:00
input
Input: synaptics-rmi4 - select 'SERIO' when needed
2017-02-07 14:31:45 -08:00
iommu
Merge tag 'iommu-fixes-v4.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
2017-01-06 10:49:36 -08:00
ipack
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irqchip
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-12-25 14:30:04 -08:00
isdn
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-01-28 10:33:06 -05:00
leds
cpu/hotplug: Cleanup state names
2016-12-25 10:47:44 +01:00
lguest
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
lightnvm
Merge tag 'char-misc-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2016-12-13 12:11:01 -08:00
macintosh
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
mailbox
ktime: Cleanup ktime_set() usage
2016-12-25 17:21:22 +01:00
mcb
mcb: fix compiler warning logical-op in mcb-parse.c
2016-11-15 10:52:37 +01:00
md
dm crypt: replace RCU read-side section with rwsem
2017-02-03 10:26:14 -05:00
media
Merge tag 'media/v4.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2017-02-06 14:37:55 -08:00
memory
Merge tag 'davinci-for-v4.10/drivers-2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/drivers
2016-11-30 14:58:00 +01:00
memstick
drivers/memstick/core/memstick.c: avoid -Wnonnull warning
2017-01-24 16:26:14 -08:00
message
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
mfd
Merge tag 'mfd-for-linus-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
2016-12-19 08:16:26 -08:00
misc
mei: bus: enable OS version only for SPT and newer
2017-01-11 07:43:57 +01:00
mmc
mmc: mmci: avoid clearing ST Micro busy end interrupt mistakenly
2017-02-08 12:22:27 +01:00
mtd
mtd: nand: lpc32xx: fix invalid error handling of a requested irq
2017-01-04 20:50:18 +01:00
net
mlx4: do not use rwlock in fast path
2017-02-15 12:06:18 -05:00
nfc
mei: bus: split RX and async notification callbacks
2016-11-17 16:37:49 +01:00
ntb
ntb_transport: Remove unnecessary call to ntb_peer_spad_read
2016-12-23 16:11:07 -05:00
nubus
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
nvdimm
libnvdimm, pfn: fix memmap reservation size versus 4K alignment
2017-02-04 14:47:31 -08:00
nvme
nvme-fc: use blk_rq_nr_phys_segments
2017-01-26 17:49:14 +02:00
nvmem
nvmem: fix nvmem_cell_read() return type doc
2017-01-04 18:22:47 +01:00
of
Merge tag 'pci-v4.10-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
2016-12-15 12:46:48 -08:00
oprofile
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
parisc
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
parport
parisc, parport_gsc: Fixes for printk continuation lines
2017-01-28 21:54:21 +01:00
pci
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-02-11 02:31:11 -05:00
pcmcia
drivers/pcmcia/m32r_pcc.c: check return from add_pcc_socket
2016-12-12 18:55:06 -08:00
perf
cpu/hotplug: Cleanup state names
2016-12-25 10:47:44 +01:00
phy
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2016-12-14 10:49:33 -08:00
pinctrl
pinctrl: baytrail: Add missing spinlock usage in byt_gpio_irq_handler
2017-01-30 15:53:57 +01:00
platform
platform/x86: ideapad-laptop: handle ACPI event 1
2017-01-22 12:47:06 +02:00
pnp
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
power
ktime: Cleanup ktime_set() usage
2016-12-25 17:21:22 +01:00
powercap
powercap / RAPL: Add Knights Mill CPUID
2016-11-30 23:41:33 +01:00
pps
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ps3
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ptp
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-12-12 19:56:15 -08:00
pwm
Merge tag 'pwm/for-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
2016-12-15 11:45:13 -08:00
rapidio
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ras
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regulator
Merge tag 'regulator-fix-v4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
2017-02-03 13:46:38 -08:00
remoteproc
Revert "remoteproc: Merge table_ptr and cached_table pointers"
2016-12-30 03:26:31 -08:00
reset
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2016-12-15 16:03:25 -08:00
rpmsg
rpmsg: virtio_rpmsg_bus: fix channel creation
2016-12-30 03:12:11 -08:00
rtc
rtc: jz4740: make the driver buildable as a module again
2017-01-26 23:03:21 +01:00
s390
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-01-28 10:33:06 -05:00
sbus
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
scsi
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-02-11 02:31:11 -05:00
sfi
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sh
lib: radix-tree: check accounting of existing slot replacement users
2016-12-12 18:55:08 -08:00
sn
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soc
soc: ti: wkup_m3_ipc: Fix error return code in wkup_m3_ipc_probe()
2017-01-12 13:37:49 -08:00
spi
Merge tag 'spi-fix-v4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
2017-01-20 12:25:11 -08:00
spmi
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ssb
ssb: Fix error routine when fallback SPROM fails
2016-11-17 08:49:04 +02:00
staging
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-02-11 02:31:11 -05:00
target
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-02-11 02:31:11 -05:00
tc
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thermal
Revert "thermal: thermal_hwmon: Convert to hwmon_device_register_with_info()"
2017-01-25 09:51:08 +08:00
thunderbolt
Merge tag 'char-misc-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2016-12-13 12:11:01 -08:00
tty
sysrq: attach sysrq handler correctly for 32-bit kernel
2017-01-11 09:22:54 +01:00
uio
uio-hv-generic: store physical addresses instead of virtual
2016-12-10 14:57:58 +01:00
usb
Merge tag 'usb-serial-4.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
2017-02-03 22:19:15 +01:00
uwb
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vfio
vfio/spapr_tce: Set window when adding additional groups to container
2017-02-07 11:48:16 -07:00
vhost
tap: tap as an independent module
2017-02-11 20:59:41 -05:00
video
fbdev: color map copying bounds checking
2017-01-24 16:26:14 -08:00
virt
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virtio
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-02-07 16:29:30 -05:00
vlynq
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vme
vme: Fix wrong pointer utilization in ca91cx42_slave_get
2017-01-11 10:42:16 +01:00
w1
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watchdog
Merge tag 'watchdog-for-linus-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
2016-12-24 11:27:45 -08:00
xen
Merge branch 'stable/for-linus-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb
2017-01-27 12:17:07 -08:00
zorro
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
Kconfig
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Makefile
ptp_clock: Allow for it to be optional
2016-11-16 09:26:34 +01:00