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Tao Su 2793a9cc0f block: Skip destroyed blkg when restart in blkg_destroy_all() 
[ Upstream commit 8176080d59 ]

Kernel hang in blkg_destroy_all() when total blkg greater than
BLKG_DESTROY_BATCH_SIZE, because of not removing destroyed blkg in
blkg_list. So the size of blkg_list is same after destroying a
batch of blkg, and the infinite 'restart' occurs.

Since blkg should stay on the queue list until blkg_free_workfn(),
skip destroyed blkg when restart a new round, which will solve this
kernel hang issue and satisfy the previous will to restart.

Reported-by: Xiangfei Ma <xiangfeix.ma@intel.com>
Tested-by: Xiangfei Ma <xiangfeix.ma@intel.com>
Tested-by: Farrah Chen <farrah.chen@intel.com>
Signed-off-by: Tao Su <tao1.su@linux.intel.com>
Fixes: f1c006f1c6 ("blk-cgroup: synchronize pd_free_fn() from blkg_free_workfn() and blkcg_deactivate_policy()")
Suggested-and-reviewed-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20230428045149.1310073-1-tao1.su@linux.intel.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2023-05-17 13:58:45 +02:00
Documentation ASoC: dt-bindings: qcom,lpass-rx-macro: correct minItems for clocks 2023-05-11 23:10:55 +09:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
arch KVM: x86/mmu: Refresh CR0.WP prior to checking for emulated permission faults 2023-05-17 13:58:41 +02:00
block block: Skip destroyed blkg when restart in blkg_destroy_all() 2023-05-17 13:58:45 +02:00
certs certs: Fix build error when PKCS#11 URI contains semicolon 2023-01-31 17:53:01 +09:00
crypto crypto: drbg - Only fail when jent is unavailable in FIPS mode 2023-05-11 23:11:12 +09:00
drivers net: dsa: mv88e6xxx: add mv88e6321 rsvd2cpu 2023-05-17 13:58:45 +02:00
fs writeback: fix call of incorrect macro 2023-05-17 13:58:45 +02:00
include netfilter: nf_tables: deactivate anonymous set from preparation phase 2023-05-11 23:11:36 +09:00
init gcc: disable '-Warray-bounds' for gcc-13 too 2023-04-26 14:30:08 +02:00
io_uring io_uring/rsrc: use nospec'ed indexes 2023-05-11 23:11:15 +09:00
ipc Non-MM patches for 6.2-rc1. 2022-12-12 17:28:58 -08:00
kernel kcsan: Avoid READ_ONCE() in read_instrumented_memory() 2023-05-11 23:11:34 +09:00
lib debugobject: Ensure pool refill (again) 2023-05-11 23:11:36 +09:00
mm mm/mempolicy: correctly update prev when policy is equal on mbind 2023-05-11 23:11:35 +09:00
net net: ipv6: fix skb hash for some RST packets 2023-05-17 13:58:45 +02:00
rust rust: kernel: Mark rust_fmt_argument as extern "C" 2023-04-26 14:30:02 +02:00
samples ftrace: Export ftrace_free_filter() to modules 2023-01-24 11:20:58 -05:00
scripts scripts/gdb: fix lx-timerlist for Python3 2023-05-11 23:11:34 +09:00
security selinux: ensure av_permissions.h is built when needed 2023-05-11 23:10:56 +09:00
sound ASoC: Intel: soc-acpi-byt: Fix "WM510205" match no longer working 2023-05-17 13:58:41 +02:00
tools selftests: srv6: make srv6_end_dt46_l3vpn_test more robust 2023-05-17 13:58:45 +02:00
usr usr/gen_init_cpio.c: remove unnecessary -1 values from int file 2022-10-03 14:21:44 -07:00
virt KVM: Register /dev/kvm as the _very_ last thing during initialization 2023-03-10 09:29:33 +01:00
.clang-format iommufd for 6.2 2022-12-14 09:15:43 -08:00
.cocciconfig
…
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes
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.gitignore .gitignore: ignore *.rpm 2022-12-30 17:22:14 +09:00
.mailmap 12 hotfixes, mostly against mm/. Five of these fixes are cc:stable. 2023-02-13 14:09:20 -08:00
.rustfmt.toml rust: add `.rustfmt.toml` 2022-09-28 09:02:20 +02:00
COPYING
…
CREDITS MAINTAINERS: update SCTP maintainers 2023-02-02 11:35:33 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS audit: update the mailing list in MAINTAINERS 2023-02-25 11:13:29 +01:00
Makefile Linux 6.2.15 2023-05-11 23:11:36 +09:00
README
…

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.