John Ogness fdd2c1f4e2 um: synchronize kmsg_dumper ...

The kmsg_dumper can be called from any context and CPU, possibly
from multiple CPUs simultaneously. Since a static buffer is used
to retrieve the kernel logs, this buffer must be protected against
simultaneous dumping. Skip dumping if another context is already
dumping.

Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20210303101528.29901-2-john.ogness@linutronix.de

2021-03-08 11:42:37 +01:00

..

alpha

Merge tag 's390-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

2021-02-21 13:40:06 -08:00

arc

arch: arc: Remove CONFIG_OPROFILE support

2021-01-22 12:12:03 +05:30

arm

Merge tag 'for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

2021-02-22 09:49:59 -08:00

arm64

Merge tag 'regulator-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

2021-02-22 09:16:38 -08:00

csky

local64.h: make <asm/local64.h> mandatory

2020-12-29 15:36:49 -08:00

h8300

h8300: fix PREEMPTION build, TI_PRE_COUNT undefined

2021-02-13 11:42:40 -08:00

hexagon

arch: hexagon: Don't select HAVE_OPROFILE

2021-01-22 12:12:08 +05:30

ia64

Merge tag 'core-mm-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2021-02-21 12:19:56 -08:00

m68k

Merge tag 'm68k-for-v5.12-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

2021-02-21 13:16:08 -08:00

microblaze

arch: microblaze: Remove CONFIG_OPROFILE support

2021-01-22 12:12:23 +05:30

mips

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2021-02-21 13:31:43 -08:00

nds32

local64.h: make <asm/local64.h> mandatory

2020-12-29 15:36:49 -08:00

nios2

Merge tag 'tif-task_work.arch-2020-12-14' of git://git.kernel.dk/linux-block

2020-12-16 12:33:35 -08:00

openrisc

openrisc: io: Add missing __iomem annotation to iounmap()

2021-01-20 06:14:26 +09:00

parisc

Merge branch 'parisc-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

2021-02-21 13:20:41 -08:00

powerpc

Merge tag 'devicetree-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

2021-02-22 10:05:12 -08:00

riscv

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

2021-02-20 17:45:32 -08:00

s390

Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2021-02-21 17:23:56 -08:00

sh

Merge tag 'oprofile-removal-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/linux

2021-02-21 10:40:34 -08:00

sparc

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2021-02-21 13:31:43 -08:00

um

um: synchronize kmsg_dumper

2021-03-08 11:42:37 +01:00

x86

Merge tag 'platform-drivers-x86-v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

2021-02-22 08:50:01 -08:00

xtensa

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2021-02-21 13:31:43 -08:00

.gitignore

…

Kconfig

Merge tag 'docs-5.12' of git://git.lwn.net/linux

2021-02-22 10:57:46 -08:00