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linux-sg2042
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Eran Ben Elisha f5adbfee72 net/mlx4_core: Fix sleeping while holding spinlock at rem_slave_counters 
When cleaning slave's counter resources, we hold a spinlock that
protects the slave's counters list. As part of the clean, we call
__mlx4_clear_if_stat which calls mlx4_alloc_cmd_mailbox which is a
sleepable function.

In order to fix this issue, hold the spinlock, and copy all counter
indices into a temporary array, and release the spinlock. Afterwards,
iterate over this array and free every counter. Repeat this scenario
until the original list is empty (a new counter might have been added
while releasing the counters from the temporary array).

Fixes: b72ca7e96a ("net/mlx4_core: Reset counters data when freed")
Reported-by: Moni Shoua <monis@mellanox.com>
Tested-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2015-11-15 18:43:41 -05:00
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accessibility
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acpi libnvdimm for 4.4: 2015-11-10 12:07:22 -08:00
amba
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android
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ata Merge branch 'for-4.3-fixes' into for-4.4 2015-11-03 17:29:03 -05:00
atm
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auxdisplay
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base ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
bcma
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block Merge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-block 2015-11-10 17:23:49 -08:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-11-10 18:11:41 -08:00
bus ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
cdrom
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char powerpc updates for 4.4 2015-11-05 23:38:43 -08:00
clk ARM: DT updates for v4.4 2015-11-10 15:06:26 -08:00
clocksource ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
connector mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd 2015-11-06 17:50:42 -08:00
cpufreq ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
cpuidle
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crypto asm-generic cleanups 2015-11-06 14:22:15 -08:00
dca
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devfreq
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dio
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dma dmaengine updates for 4.4-rc1 2015-11-10 10:05:17 -08:00
dma-buf dma-buf/fence: add fence_wait_any_timeout function v2 2015-10-30 01:16:16 -04:00
edac asm-generic cleanups 2015-11-06 14:22:15 -08:00
eisa
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extcon Merge branches 'ib-extcon-mfd-4.4', 'ib-mfd-i2c-v4.4', 'ib-mfd-power-4.4', 'ib-mfd-regmap-4.4' and 'ib-mfd-regulator-4.4' into ibs-for-mfd-merged 2015-10-26 14:48:22 +00:00
firewire mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd 2015-11-06 17:50:42 -08:00
firmware ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
fmc
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fpga fpga: socfpga: Fix check of return value of devm_request_irq 2015-10-29 15:20:25 -07:00
gpio asm-generic cleanups 2015-11-06 14:22:15 -08:00
gpu Merge branch 'akpm' (patches from Andrew) 2015-11-10 21:14:23 -08:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2015-11-07 12:49:27 -08:00
hsi hsi: controllers:remove redundant code 2015-10-30 16:10:40 +01:00
hv drivers/hv: share Hyper-V SynIC constants with userspace 2015-11-04 16:24:33 +01:00
hwmon ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
hwspinlock
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hwtracing
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i2c Merge branch 'i2c/for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2015-11-10 11:58:25 -08:00
ide mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM 2015-11-06 17:50:42 -08:00
idle
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iio spi: Updates for v4.4 2015-11-05 13:15:12 -08:00
infiniband Merge branch 'akpm' (patches from Andrew) 2015-11-07 14:32:45 -08:00
input remove abs64() 2015-11-09 15:11:24 -08:00
iommu mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd 2015-11-06 17:50:42 -08:00
ipack
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irqchip Power management and ACPI updates for v4.4-rc1 2015-11-04 18:10:13 -08:00
isdn TTY/Serial driver patches for 4.4-rc1 2015-11-04 21:35:12 -08:00
leds spi: Updates for v4.4 2015-11-05 13:15:12 -08:00
lguest
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lightnvm block: change ->make_request_fn() and users to return a queue cookie 2015-11-07 10:40:46 -07:00
macintosh
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mailbox mailbox: mailbox-test: avoid reading iomem twice 2015-11-04 14:03:04 +05:30
mcb mcb: Destroy IDA on module unload 2015-10-29 09:02:16 +09:00
md Merge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-block 2015-11-10 17:23:49 -08:00
media netup_unidvb: use pci_set_dma_mask insted of pci_dma_supported 2015-11-10 16:32:11 -08:00
memory ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
memstick
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message
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mfd asm-generic cleanups 2015-11-06 14:22:15 -08:00
misc ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
mmc spi: Updates for v4.4 2015-11-05 13:15:12 -08:00
mtd This pull request includes the following UBI/UBIFS changes: 2015-11-10 16:35:06 -08:00
net net/mlx4_core: Fix sleeping while holding spinlock at rem_slave_counters 2015-11-15 18:43:41 -05:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-11-10 18:11:41 -08:00
ntb NTB: fix 32-bit compiler warning 2015-11-08 16:24:43 -05:00
nubus
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nvdimm Merge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-block 2015-11-10 17:23:49 -08:00
nvme Merge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-block 2015-11-10 17:23:49 -08:00
nvmem
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of DeviceTree updates for 4.4: 2015-11-06 12:17:09 -08:00
oprofile
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parisc pci: remove pci_dma_supported 2015-11-10 16:32:11 -08:00
parport
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pci PCI changes for the v4.4 merge window: 2015-11-06 11:29:53 -08:00
pcmcia
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perf arm64 updates for 4.4: 2015-11-04 14:47:13 -08:00
phy USB patches for 4.4-rc1 2015-11-04 21:26:27 -08:00
pinctrl This is the bulk of GPIO changes for v4.4: 2015-11-02 12:59:12 -08:00
platform Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2015-11-10 09:33:06 -08:00
pnp
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power - New Device Support 2015-11-06 10:23:50 -08:00
powercap
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pps
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ps3
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ptp
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pwm
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rapidio
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ras
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regulator spi: Updates for v4.4 2015-11-05 13:15:12 -08:00
remoteproc
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reset
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rpmsg
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rtc RTC for 4.4 2015-11-10 10:01:21 -08:00
s390 block: change ->make_request_fn() and users to return a queue cookie 2015-11-07 10:40:46 -07:00
sbus
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scsi drivers/scsi/cxgbi: fix build with EXTRA_CFLAGS 2015-11-09 15:11:24 -08:00
sfi
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sh
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sn
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soc ARM: SoC driver updates for v4.4 2015-11-10 15:00:03 -08:00
spi Merge remote-tracking branches 'spi/topic/s3c64xx', 'spi/topic/ti-qspi' and 'spi/topic/txx9' into spi-next 2015-11-04 11:02:16 +00:00
spmi char/misc drivers for 4.4-rc1 2015-11-04 22:15:15 -08:00
ssb ssb: add Kconfig entry for compiling SoC related code 2015-10-28 21:05:21 +02:00
staging Merge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-block 2015-11-10 17:23:49 -08:00
target
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tc
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thermal remove abs64() 2015-11-09 15:11:24 -08:00
thunderbolt
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tty asm-generic cleanups 2015-11-06 14:22:15 -08:00
uio
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usb dma: remove external references to dma_supported 2015-11-09 15:11:24 -08:00
uwb driver core update for 4.4-rc1 2015-11-04 21:50:37 -08:00
vfio
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vhost vhost: fix performance on LE hosts 2015-10-27 20:17:03 -07:00
video fbdev changes for 4.4 2015-11-10 10:00:09 -08:00
virt
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virtio
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vlynq
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vme char/misc drivers for 4.4-rc1 2015-11-04 22:15:15 -08:00
w1 power supply and reset changes for the v4.4 series 2015-11-05 12:28:15 -08:00
watchdog Merge git://www.linux-watchdog.org/linux-watchdog 2015-11-10 10:11:12 -08:00
xen
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zorro
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Kconfig char/misc drivers for 4.4-rc1 2015-11-04 22:15:15 -08:00
Makefile char/misc drivers for 4.4-rc1 2015-11-04 22:15:15 -08:00