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58668d153baf61cc859183dfd13f2ad5bb4c8c97
linux/drivers
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Bharat Potnuri 58668d153b iser-target: avoid reinitializing rdma contexts for isert commands 
[ Upstream commit 66f53e6f54 ]

isert commands that failed during isert_rdma_rw_ctx_post() are queued to
Queue-Full(QF) queue and are scheduled to be reposted during queue-full
queue processing. During this reposting, the rdma contexts are initialised
again in isert_rdma_rw_ctx_post(), which is leaking significant memory.

unreferenced object 0xffff8830201d9640 (size 64):
  comm "kworker/0:2", pid 195, jiffies 4295374851 (age 4528.436s)
  hex dump (first 32 bytes):
    00 60 8b cb 2e 00 00 00 00 10 00 00 00 00 00 00  .`..............
    00 90 e3 cb 2e 00 00 00 00 10 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff8170711e>] kmemleak_alloc+0x4e/0xb0
    [<ffffffff811f8ba5>] __kmalloc+0x125/0x2b0
    [<ffffffffa046b24f>] rdma_rw_ctx_init+0x15f/0x6f0 [ib_core]
    [<ffffffffa07ab644>] isert_rdma_rw_ctx_post+0xc4/0x3c0 [ib_isert]
    [<ffffffffa07ad972>] isert_put_datain+0x112/0x1c0 [ib_isert]
    [<ffffffffa07dddce>] lio_queue_data_in+0x2e/0x30 [iscsi_target_mod]
    [<ffffffffa076c322>] target_qf_do_work+0x2b2/0x4b0 [target_core_mod]
    [<ffffffff81080c3b>] process_one_work+0x1db/0x5d0
    [<ffffffff8108107d>] worker_thread+0x4d/0x3e0
    [<ffffffff81088667>] kthread+0x117/0x150
    [<ffffffff81713fa7>] ret_from_fork+0x27/0x40
    [<ffffffffffffffff>] 0xffffffffffffffff

Here is patch to use the older rdma contexts while reposting
the isert commands intead of reinitialising them.

Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-24 11:01:25 +01:00
..
accessibility
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
acpi
ACPI / bus: Parse tables as term_list for Dell XPS 9570 and Precision M5530
2018-03-08 22:41:26 -08:00
amba
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
android
binder: replace "%p" with "%pK"
2018-02-25 11:07:52 +01:00
ata
ahci: Add Intel Cannon Lake PCH-H PCI ID
2018-02-16 20:22:59 +01:00
atm
atm: horizon: Fix irq release error
2017-12-14 09:53:13 +01:00
auxdisplay
auxdisplay: img-ascii-lcd: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
2018-02-07 11:12:20 -08:00
base
dma-buf/fence: Fix lock inversion within dma-fence-array
2018-03-19 08:42:47 +01:00
bcma
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
block
loop: Fix lost writes caused by missing flag
2018-03-15 10:54:32 +01:00
bluetooth
Bluetooth: btqcomsmd: Fix skb double free corruption
2018-03-24 11:01:21 +01:00
bus
sunxi-rsb: Include OF based modalias in device uevent
2018-01-10 09:31:19 +01:00
cdrom
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
char
/dev/mem: Add bounce buffer for copy-out
2018-03-24 11:01:24 +01:00
clk
clk: qcom: msm8916: fix mnd_width for codec_digcodec
2018-03-19 08:42:52 +01:00
clocksource
clocksource/drivers/stm32: Fix kernel panic with multiple timers
2018-02-16 20:23:09 +01:00
connector
…
cpufreq
cpufreq: longhaul: Revert transition_delay_us to 200 ms
2018-03-24 11:01:21 +01:00
cpuidle
cpuidle: fix broadcast control when broadcast can not be entered
2017-12-25 14:26:30 +01:00
crypto
crypto: caam/qi - use correct print specifier for size_t
2018-03-19 08:42:55 +01:00
dax
dev/dax: fix uninitialized variable build warning
2017-12-20 10:10:34 +01:00
dca
…
devfreq
PM / devfreq: Propagate error from devfreq_add_device()
2018-02-22 15:42:16 +01:00
dio
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dma
dmaengine: zynqmp_dma: Fix race condition in the probe
2018-03-24 11:01:23 +01:00
dma-buf
dma-buf/fence: Fix lock inversion within dma-fence-array
2018-03-19 08:42:47 +01:00
edac
EDAC, sb_edac: Fix out of bound writes during DIMM configuration on KNL
2018-03-08 22:41:20 -08:00
eisa
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
extcon
extcon: int3496: process id-pin first so that we start with the right status
2018-02-28 10:19:39 +01:00
firewire
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
firmware
firmware/psci: Expose SMCCC version through psci_ops
2018-02-16 20:22:56 +01:00
fmc
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fpga
fpga: region: release of_parse_phandle nodes after use
2018-02-07 11:12:26 -08:00
fsi
drivers/fsi/scom: Remove reset before every putscom
2017-08-28 17:15:16 +02:00
gpio
gpio: davinci: Assign first bank regs for unbanked case
2018-02-25 11:07:56 +01:00
gpu
drm/tilcdc: ensure nonatomic iowrite64 is not used
2018-03-24 11:01:24 +01:00
hid
HID: elo: clear BTN_LEFT mapping
2018-03-19 08:42:47 +01:00
hsi
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
hv
x86/virt: Add enum for hypervisors to replace x86_hyper
2017-12-25 14:26:20 +01:00
hwmon
x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping
2018-02-22 15:42:24 +01:00
hwspinlock
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
hwtracing
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
i2c
i2c: bcm2835: Set up the rising/falling edge delays
2018-02-28 10:19:39 +01:00
ide
ide: ide-atapi: fix compile error with defining macro DEBUG
2017-12-17 15:08:00 +01:00
idle
Revert "x86/mm: Stop calling leave_mm() in idle code"
2017-11-04 15:01:50 +01:00
iio
iio: health: max30102: Add power enable parameter to get_temp function
2018-03-19 08:42:51 +01:00
infiniband
iser-target: avoid reinitializing rdma contexts for isert commands
2018-03-24 11:01:25 +01:00
input
Input: matrix_keypad - fix race when disabling interrupts
2018-03-15 10:54:32 +01:00
iommu
iommu/arm-smmu-v3: Cope with duplicated Stream IDs
2018-01-10 09:31:21 +01:00
ipack
…
irqchip
irqchip/gic-v3-its: Ensure nr_ites >= nr_lpis
2018-03-21 12:06:44 +01:00
isdn
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
leds
leds: pm8058: Silence pointer to integer size warning
2018-03-19 08:42:50 +01:00
lightnvm
lightnvm: pblk: protect line bitmap while submitting meta io
2017-12-20 10:10:38 +01:00
macintosh
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mailbox
mailbox: mailbox-test: don't rely on rx_buffer content to signal data ready
2017-12-14 09:53:12 +01:00
mcb
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
md
dm raid: fix raid set size revalidation
2018-03-19 08:42:54 +01:00
media
media: s5p-mfc: Fix lock contention - request_firmware() once
2018-03-24 11:01:24 +01:00
memory
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
memstick
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
message
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mfd
mfd: twl6040: Fix child-node lookup
2017-12-29 17:53:46 +01:00
misc
mei: me: add cannon point device ids for 4th device
2018-02-25 11:08:04 +01:00
mmc
mmc: block: fix logical error to avoid memory leak
2018-03-24 11:01:24 +01:00
mtd
mtd: nand: ifc: update bufnum mask for ver >= 2.0.0
2018-03-19 08:42:50 +01:00
mux
mux: core: fix double get_device()
2018-01-17 09:45:27 +01:00
net
sfp: fix non-detection of PHY
2018-03-24 11:01:24 +01:00
nfc
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ntb
…
nubus
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
nvdimm
libnvdimm, pfn: fix start_pad handling for aligned namespaces
2017-12-29 17:53:49 +01:00
nvme
nvme-rdma: don't suppress send completions
2018-03-08 22:41:26 -08:00
nvmem
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
of
of_mdio: avoid MDIO bus removal when a PHY is missing
2018-03-03 10:24:37 +01:00
oprofile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
parisc
parisc: Hide Diva-built-in serial aux and graphics card
2017-12-29 17:53:47 +01:00
parport
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pci
PCI: dwc: Fix enumeration end when reaching root subordinate
2018-03-15 10:54:32 +01:00
pcmcia
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
perf
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
phy
phy: cpcap-usb: Fix platform_get_irq_byname's error checking.
2018-03-03 10:24:22 +01:00
pinctrl
pinctrl: sh-pfc: r8a7795-es1: Fix MOD_SEL1 bit[25:24] to 0x3 when using STP_ISEN_1_D
2018-03-19 08:42:52 +01:00
platform
platform/chrome: Use proper protocol transfer function
2018-03-24 11:01:23 +01:00
pnp
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
power
power: supply: ab8500_charger: Bail out in case of error in 'ab8500_charger_init_hw_registers()'
2018-03-19 08:42:50 +01:00
powercap
…
pps
drivers/pps: use surrounding "if PPS" to remove numerous dependency checks
2017-09-08 18:26:51 -07:00
ps3
…
ptp
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pwm
pwm: stmpe: Fix wrong register offset for hwpwm=2 case
2018-03-19 08:42:51 +01:00
rapidio
drivers/rapidio/devices/rio_mport_cdev.c: fix resource leak in error handling path in 'rio_dma_transfer()'
2017-12-14 09:53:08 +01:00
ras
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
regulator
regulator: stm32-vrefbuf: fix check on ready flag
2018-03-15 10:54:28 +01:00
remoteproc
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
reset
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
rpmsg
rpmsg: glink: Initialize the "intent_req_comp" completion variable
2017-12-20 10:10:29 +01:00
rtc
rtc: ac100: Fix multiple race conditions
2018-03-24 11:01:24 +01:00
s390
s390/qeth: fix IPA command submission race
2018-03-08 22:41:20 -08:00
sbus
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
scsi
scsi: megaraid_sas: Do not use 32-bit atomic request descriptor for Ventura controllers
2018-03-24 11:01:21 +01:00
sfi
…
sh
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
sn
…
soc
meson-gx-socinfo: Fix package id parsing
2018-02-25 11:07:56 +01:00
spi
spi: sh-msiof: Avoid writing to registers from spi_master.setup()
2018-03-24 11:01:22 +01:00
spmi
spmi: pmic-arb: Move the ownership check to irq_chip callback
2017-08-28 13:52:22 +02:00
ssb
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
staging
staging: android: ashmem: Fix possible deadlock in ashmem_ioctl
2018-03-24 11:01:21 +01:00
target
iscsi-target: make sure to wake up sleeping login worker
2018-02-22 15:42:29 +01:00
tc
…
tee
optee: fix invalid of_node_put() in optee_driver_init()
2017-12-25 14:26:24 +01:00
thermal
thermal/drivers/hisi: Fix multiple alarm interrupts firing
2017-12-25 14:26:31 +01:00
thunderbolt
thunderbolt: tb: fix use after free in tb_activate_pcie_devices
2017-12-20 10:10:24 +01:00
tty
serial: 8250_dw: Disable clock on error
2018-03-24 11:01:23 +01:00
uio
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
usb
usb: dwc3: Fix GDBGFIFOSPACE_TYPE values
2018-03-21 12:06:45 +01:00
uwb
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
vfio
vfio: disable filesystem-dax page pinning
2018-03-08 22:41:06 -08:00
vhost
vhost: use mutex_lock_nested() in vhost_dev_lock_vqs()
2018-02-25 11:07:45 +01:00
video
video/hdmi: Allow "empty" HDMI infoframes
2018-03-19 08:42:47 +01:00
virt
virt: Convert to using %pOF instead of full_name
2017-08-29 08:52:51 -05:00
virtio
virtio_ring: fix num_free handling in error case
2018-03-15 10:54:32 +01:00
vlynq
…
vme
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
w1
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
watchdog
watchdog: Fix kref imbalance seen if handle_boot_enabled=0
2018-03-24 11:01:23 +01:00
xen
xen/gntdev: Fix partial gntdev_mmap() cleanup
2018-03-03 10:24:37 +01:00
zorro
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
Kconfig
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
Makefile
usb: build drivers/usb/common/ when USB_SUPPORT is set
2018-02-25 11:07:53 +01:00