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Julian Schroeder bc76727767 nfsd: destroy percpu stats counters after reply cache shutdown 
[ Upstream commit fd5e363eac ]

Upon nfsd shutdown any pending DRC cache is freed. DRC cache use is
tracked via a percpu counter. In the current code the percpu counter
is destroyed before. If any pending cache is still present,
percpu_counter_add is called with a percpu counter==NULL. This causes
a kernel crash.
The solution is to destroy the percpu counter after the cache is freed.

Fixes: e567b98ce9 (“nfsd: protect concurrent access to nfsd stats counters”)
Signed-off-by: Julian Schroeder <jumaco@amazon.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-06-09 10:30:33 +02:00
arch powerpc/fsl_book3e: Don't set rodata RO too early 2022-06-09 10:30:33 +02:00
block bfq: Allow current waker to defend against a tentative one 2022-06-09 10:30:17 +02:00
certs Kbuild updates for v5.18 2022-03-31 11:59:03 -07:00
crypto crypto: cryptd - Protect per-CPU resource by disabling BH. 2022-06-09 10:30:30 +02:00
Documentation dt-bindings: soc: qcom: smd-rpm: Fix missing MSM8936 compatible 2022-06-09 10:30:24 +02:00
drivers mfd: davinci_voicecodec: Fix possible null-ptr-deref davinci_vc_probe() 2022-06-09 10:30:33 +02:00
fs nfsd: destroy percpu stats counters after reply cache shutdown 2022-06-09 10:30:33 +02:00
include mce: fix set_mce_nospec to always unmap the whole page 2022-06-09 10:30:31 +02:00
init kthread: Don't allocate kthread_struct for init and umh 2022-06-09 10:29:30 +02:00
ipc ipc/mqueue: use get_tree_nodev() in mqueue_get_tree() 2022-06-09 10:30:30 +02:00
kernel module: fix [e_shstrndx].sh_size=0 OOB access 2022-06-09 10:30:30 +02:00
lib kunit: fix debugfs code to use enum kunit_status, not bool 2022-06-09 10:30:05 +02:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm zsmalloc: fix races between asynchronous zspage free and page migration 2022-06-06 08:48:56 +02:00
net Revert "net/smc: fix listen processing for SMC-Rv2" 2022-06-09 10:30:21 +02:00
samples samples: bpf: Don't fail for a missing VMLINUX_BTF when VMLINUX_H is provided 2022-06-09 10:30:08 +02:00
scripts scripts/faddr2line: Fix overlapping text section failures 2022-06-09 10:30:10 +02:00
security lockdown: also lock down previous kgdb use 2022-05-30 09:24:03 +02:00
sound ASoC: atmel-classd: Remove endianness flag on class d component 2022-06-09 10:30:29 +02:00
tools perf stat: Always keep perf metrics topdown events in a group 2022-06-09 10:30:32 +02:00
usr Kbuild updates for v5.18 2022-03-31 11:59:03 -07:00
virt KVM: Free new dirty bitmap if creating a new memslot fails 2022-05-20 13:02:05 -04:00
.clang-format genirq/msi: Make interrupt allocation less convoluted 2021-12-16 22:22:20 +01:00
.cocciconfig
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap hotfixes for 5.18-rc7 2022-05-13 10:22:37 -07:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: replace a Microchip AT91 maintainer 2022-02-09 11:30:01 +01:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS Merge branch 'arm/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc 2022-05-18 14:07:43 -10:00
Makefile Linux 5.18.2 2022-06-06 08:49:00 +02:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.