kernel-fxtec-pro1x/drivers/char
Feng Tang 1d9c47a329 ipmi: use vzalloc instead of kmalloc for user creation
[ Upstream commit 7c47a219b95d0e06b5ef5fcc7bad807895015eac ]

We met mulitple times of failure of staring bmc-watchdog,
due to the runtime memory allocation failure of order 4.

     bmc-watchdog: page allocation failure: order:4, mode:0x40cc0(GFP_KERNEL|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1
     CPU: 1 PID: 2571 Comm: bmc-watchdog Not tainted 5.5.0-00045-g7d6bb61d6188c #1
     Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.00.01.0015.110720180833 11/07/2018
     Call Trace:
      dump_stack+0x66/0x8b
      warn_alloc+0xfe/0x160
      __alloc_pages_slowpath+0xd3e/0xd80
      __alloc_pages_nodemask+0x2f0/0x340
      kmalloc_order+0x18/0x70
      kmalloc_order_trace+0x1d/0xb0
      ipmi_create_user+0x55/0x2c0 [ipmi_msghandler]
      ipmi_open+0x72/0x110 [ipmi_devintf]
      chrdev_open+0xcb/0x1e0
      do_dentry_open+0x1ce/0x380
      path_openat+0x305/0x14f0
      do_filp_open+0x9b/0x110
      do_sys_open+0x1bd/0x250
      do_syscall_64+0x5b/0x1f0
      entry_SYSCALL_64_after_hwframe+0x44/0xa9

Using vzalloc/vfree for creating ipmi_user heals the
problem

Thanks to Stephen Rothwell for finding the vmalloc.h
inclusion issue.

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-25 15:32:57 +02:00
..
agp agp/intel: Reinforce the barrier after GTT updates 2020-06-22 09:05:08 +02:00
hw_random hwrng: imx-rngc - fix an error path 2020-04-13 10:45:10 +02:00
ipmi ipmi: use vzalloc instead of kmalloc for user creation 2020-06-25 15:32:57 +02:00
mwave char/mwave: fix potential Spectre v1 vulnerability 2019-01-31 08:14:36 +01:00
pcmcia char: pcmcia: remove redundant pointer dev 2018-07-03 13:01:57 +02:00
tpm tpm: ibmvtpm: retry on H_CLOSED in tpm_ibmvtpm_send() 2020-04-29 16:31:29 +02:00
xilinx_hwicap char: xilinx_hwicap: Fix warnings in the driver 2017-08-28 17:04:47 +02:00
xillybus PCI: Add Altera vendor ID 2018-03-14 19:13:47 +01:00
adi.c char: sparc64: Add privileged ADI driver 2018-06-05 11:24:55 -07:00
apm-emulation.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
applicom.c applicom: Fix potential Spectre v1 vulnerabilities 2019-03-10 07:17:20 +01:00
applicom.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bsr.c
ds1620.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
dsp56k.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
dtlk.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
efirtc.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
generic_nvram.c
hangcheck-timer.c treewide: Switch DEFINE_TIMER callbacks to struct timer_list * 2017-11-21 15:57:05 -08:00
hpet.c hpet: Fix division by zero in hpet_time_div() 2019-07-31 07:27:10 +02:00
Kconfig tty: mark Siemens R3964 line discipline as BROKEN 2019-04-17 08:38:47 +02:00
lp.c lp: fix sparc64 LPSETTIMEOUT ioctl 2019-12-13 08:50:58 +01:00
Makefile char: sparc64: Add privileged ADI driver 2018-06-05 11:24:55 -07:00
mbcs.c
mbcs.h
mem.c /dev/mem: Bail out upon SIGKILL. 2019-10-05 13:10:11 +02:00
misc.c proc: introduce proc_create_seq{,_data} 2018-05-16 07:23:35 +02:00
mspec.c char: mspec: change return type to vm_fault_t 2018-04-23 13:51:53 +02:00
nsc_gpio.c
nvram.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
nwbutton.c treewide: Switch DEFINE_TIMER callbacks to struct timer_list * 2017-11-21 15:57:05 -08:00
nwbutton.h treewide: Switch DEFINE_TIMER callbacks to struct timer_list * 2017-11-21 15:57:05 -08:00
nwflash.c
pc8736x_gpio.c
powernv-op-panel.c
ppdev.c ppdev: fix PPGETTIME/PPSETTIME ioctls 2019-12-17 20:35:13 +01:00
ps3flash.c
random.c random: always use batched entropy for get_random_u{32,64} 2020-04-13 10:45:09 +02:00
raw.c treewide: Use array_size() in vzalloc() 2018-06-12 16:19:22 -07:00
rtc.c char: rtc: remove task handling 2018-08-02 17:16:03 +02:00
scx200_gpio.c
snsc.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
snsc.h
snsc_event.c
sonypi.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
tb0219.c
tlclk.c timer: Remove last user of TIMER_INITIALIZER 2017-10-05 15:01:18 +02:00
toshiba.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
ttyprintk.c ttyprintk: fix a potential deadlock in interrupt context issue 2020-02-05 14:43:39 +00:00
uv_mmtimer.c
virtio_console.c virtio_console: allocate inbufs in add_port() only if it is needed 2019-12-01 09:16:10 +01:00