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Shashank A P 8a09a62f0c fs: quota: create dedicated workqueue for quota_release_work commit `72b7ceca85` upstream. There is a kernel panic due to WARN_ONCE when panic_on_warn is set. This issue occurs when writeback is triggered due to sync call for an opened file(ie, writeback reason is WB_REASON_SYNC). When f2fs balance is needed at sync path, flush for quota_release_work is triggered. By default quota_release_work is queued to "events_unbound" queue which does not have WQ_MEM_RECLAIM flag. During f2fs balance "writeback" workqueue tries to flush quota_release_work causing kernel panic due to MEM_RECLAIM flag mismatch errors. This patch creates dedicated workqueue with WQ_MEM_RECLAIM flag for work quota_release_work. ------------[ cut here ]------------ WARNING: CPU: 4 PID: 14867 at kernel/workqueue.c:3721 check_flush_dependency+0x13c/0x148 Call trace: check_flush_dependency+0x13c/0x148 __flush_work+0xd0/0x398 flush_delayed_work+0x44/0x5c dquot_writeback_dquots+0x54/0x318 f2fs_do_quota_sync+0xb8/0x1a8 f2fs_write_checkpoint+0x3cc/0x99c f2fs_gc+0x190/0x750 f2fs_balance_fs+0x110/0x168 f2fs_write_single_data_page+0x474/0x7dc f2fs_write_data_pages+0x7d0/0xd0c do_writepages+0xe0/0x2f4 __writeback_single_inode+0x44/0x4ac writeback_sb_inodes+0x30c/0x538 wb_writeback+0xf4/0x440 wb_workfn+0x128/0x5d4 process_scheduled_works+0x1c4/0x45c worker_thread+0x32c/0x3e8 kthread+0x11c/0x1b0 ret_from_fork+0x10/0x20 Kernel panic - not syncing: kernel: panic_on_warn set ... Fixes: `ac6f420291` ("quota: flush quota_release_work upon quota writeback") CC: stable@vger.kernel.org Signed-off-by: Shashank A P <shashank.ap@samsung.com> Link: https://patch.msgid.link/20250901092905.2115-1-shashank.ap@samsung.com Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2025-10-19 16:37:25 +02:00
arch	KVM: TDX: Fix uninitialized error code for __tdx_bringup()	2025-10-19 16:37:19 +02:00
block	blk-crypto: fix missing blktrace bio split events	2025-10-19 16:37:23 +02:00
certs	sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3	2024-09-20 19:52:48 +03:00
crypto	crypto: essiv - Check ssize for decryption and in-place encryption	2025-10-19 16:37:14 +02:00
Documentation
drivers	fbdev: Fix logic error in "offb" name match	2025-10-19 16:37:25 +02:00
fs
include
init
io_uring	io_uring/zcrx: increment fallback loop src offset	2025-10-19 16:37:14 +02:00
ipc
kernel	copy_sighand: Handle architectures where sizeof(unsigned long) < sizeof(u64)	2025-10-19 16:37:24 +02:00
lib	vdso/datastore: Gate time data behind CONFIG_GENERIC_GETTIMEOFDAY	2025-10-15 12:03:24 +02:00
LICENSES	LICENSES: Replace the obsolete address of the FSF in the GFDL-1.2	2025-07-24 11:15:39 +02:00
mm	memcg: skip cgroup_file_notify if spinning is not allowed	2025-10-19 16:37:00 +02:00
net	bridge: br_vlan_fill_forward_path_pvid: use br_vlan_group_rcu()	2025-10-19 16:37:13 +02:00
rust	cpufreq: Make drivers using CPUFREQ_ETERNAL specify transition latency	2025-10-19 16:37:00 +02:00
samples	15 hotfixes. 11 are cc:stable and the remainder address post-6.16 issues	2025-09-17 21:34:26 -07:00
scripts	kbuild: Add '.rel.*' strip pattern for vmlinux	2025-10-19 16:37:15 +02:00
security	lsm: CONFIG_LSM can depend on CONFIG_SECURITY	2025-10-15 12:03:17 +02:00
sound	ASoC: SOF: Intel: Read the LLP via the associated Link DMA channel	2025-10-19 16:37:09 +02:00
tools	ACPICA: acpidump: drop ACPI_NONSTRING attribute from file_name	2025-10-19 16:37:16 +02:00
usr	usr/include: openrisc: don't HDRTEST bpf_perf_event.h	2025-05-12 15:03:17 +09:00
virt	Merge tag 'kvm-x86-no_assignment-6.17' of https://github.com/kvm-x86/linux into HEAD	2025-07-29 08:36:42 -04:00
.clang-format
.clippy.toml	rust: clean Rust 1.88.0's warning about `clippy::disallowed_macros` configuration	2025-05-07 00:11:47 +02:00
.cocciconfig	scripts: add Linux .cocciconfig for coccinelle	2016-07-22 12:13:39 +02:00
.editorconfig
.get_maintainer.ignore
.gitattributes	.gitattributes: set diff driver for Rust source code files	2023-05-31 17:48:25 +02:00
.gitignore	gitignore: allow .pylintrc to be tracked	2025-07-02 17:10:04 -06:00
.mailmap
.pylintrc	docs: add a .pylintrc file with sys path for docs scripts	2025-04-09 12:10:33 -06:00
.rustfmt.toml
COPYING
CREDITS	MAINTAINERS: retire Boris from TLS maintainers	2025-08-26 17:36:01 -07:00
Kbuild	drm: ensure drm headers are self-contained and pass kernel-doc	2025-02-12 10:44:43 +02:00
Kconfig	io_uring: Rename KConfig to Kconfig	2025-02-19 14:53:27 -07:00
MAINTAINERS	i2c-for-6.17-rc8	2025-09-28 13:19:23 -07:00
Makefile	Linux 6.17.3	2025-10-15 12:04:23 +02:00
README	README: Fix spelling	2024-03-18 03:36:32 -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 reStructuredText 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.