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Yufen Yu 30673786f9 nvme-loop: init nvmet_ctrl fatal_err_work when allocate [ Upstream commit `d11de63f2b` ] After commit `4d43d395fe` (workqueue: Try to catch flush_work() without INIT_WORK()), it can cause warning when delete nvme-loop device, trace like: [ 76.601272] Call Trace: [ 76.601646] ? del_timer+0x72/0xa0 [ 76.602156] __cancel_work_timer+0x1ae/0x270 [ 76.602791] cancel_work_sync+0x14/0x20 [ 76.603407] nvmet_ctrl_free+0x1b7/0x2f0 [nvmet] [ 76.604091] ? free_percpu+0x168/0x300 [ 76.604652] nvmet_sq_destroy+0x106/0x240 [nvmet] [ 76.605346] nvme_loop_destroy_admin_queue+0x30/0x60 [nvme_loop] [ 76.606220] nvme_loop_shutdown_ctrl+0xc3/0xf0 [nvme_loop] [ 76.607026] nvme_loop_delete_ctrl_host+0x19/0x30 [nvme_loop] [ 76.607871] nvme_do_delete_ctrl+0x75/0xb0 [ 76.608477] nvme_sysfs_delete+0x7d/0xc0 [ 76.609057] dev_attr_store+0x24/0x40 [ 76.609603] sysfs_kf_write+0x4c/0x60 [ 76.610144] kernfs_fop_write+0x19a/0x260 [ 76.610742] __vfs_write+0x1c/0x60 [ 76.611246] vfs_write+0xfa/0x280 [ 76.611739] ksys_write+0x6e/0x120 [ 76.612238] __x64_sys_write+0x1e/0x30 [ 76.612787] do_syscall_64+0xbf/0x3a0 [ 76.613329] entry_SYSCALL_64_after_hwframe+0x44/0xa9 We fix it by moving fatal_err_work init to nvmet_alloc_ctrl(), which may more reasonable. Signed-off-by: Yufen Yu <yuyufen@huawei.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>		2019-05-08 07:21:44 +02:00
arch	KVM: nVMX: Fix size checks in vmx_set_nested_state	2019-05-05 14:42:41 +02:00
block	blk-iolatency: #include "blk.h"	2019-04-20 09:15:58 +02:00
certs	export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR()	2018-08-22 23:21:44 +09:00
crypto	crypto: x86/poly1305 - fix overflow during partial reduction	2019-04-27 09:36:37 +02:00
Documentation	USB: core: Fix bug caused by duplicate interface PM usage counter	2019-05-08 07:21:44 +02:00
drivers	nvme-loop: init nvmet_ctrl fatal_err_work when allocate	2019-05-08 07:21:44 +02:00
firmware	kbuild: remove all dummy assignments to obj-	2017-11-18 11:46:06 +09:00
fs	ceph: fix use-after-free on symlink traversal	2019-05-04 09:20:21 +02:00
include	USB: core: Fix bug caused by duplicate interface PM usage counter	2019-05-08 07:21:44 +02:00
init	Revert "mm: use early_pfn_to_nid in page_ext_init"	2019-03-23 20:09:46 +01:00
ipc	ipc/shm.c: use ERR_CAST() for shm_lock() error return	2018-10-05 16:32:04 -07:00
kernel	ptrace: take into account saved_sigmask in PTRACE{GET,SET}SIGMASK	2019-05-04 09:20:22 +02:00
lib	lib/Kconfig.debug: fix build error without CONFIG_BLOCK	2019-05-02 09:58:53 +02:00
LICENSES	LICENSES: Remove CC-BY-SA-4.0 license text	2018-10-18 11:28:50 +02:00
mm	mm: prevent get_user_pages() from overflowing page refcount	2019-05-04 09:20:11 +02:00
net	mac80211: don't attempt to rename ERR_PTR() debugfs dirs	2019-05-08 07:21:42 +02:00
samples	samples: mei: use /dev/mei0 instead of /dev/mei	2019-02-15 08:10:11 +01:00
scripts	kconfig/[mn]conf: handle backspace (^H) key	2019-05-04 09:20:22 +02:00
security	selinux: use kernel linux/socket.h for genheaders and mdp	2019-05-04 09:20:10 +02:00
sound	ALSA: hda/realtek - Apply the fixup for ASUS Q325UAR	2019-05-08 07:21:43 +02:00
tools	selftests: fib_rule_tests: print the result and return 1 if any tests failed	2019-05-05 14:42:39 +02:00
usr	initramfs: move gen_initramfs_list.sh from scripts/ to usr/	2018-08-22 23:21:44 +09:00
virt	KVM: arm/arm64: vgic-its: Take the srcu lock when parsing the memslots	2019-05-04 09:20:14 +02:00
.clang-format	clang-format: Set IndentWrappedFunctionNames false	2018-08-01 18:38:51 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes	.gitattributes: set git diff driver for C source code files	2016-10-07 18:46:30 -07:00
.gitignore	Kbuild updates for v4.17 (2nd)	2018-04-15 17:21:30 -07:00
.mailmap	libnvdimm-for-4.19_misc	2018-08-25 18:13:10 -07:00
COPYING	COPYING: use the new text with points to the license files	2018-03-23 12:41:45 -06:00
CREDITS	9p: remove Ron Minnich from MAINTAINERS	2018-08-17 16:20:26 -07:00
Kbuild	Kbuild updates for v4.15	2017-11-17 17:45:29 -08:00
Kconfig	kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt	2018-08-02 08:06:55 +09:00
MAINTAINERS	platform/x86: Add Intel AtomISP2 dummy / power-management driver	2019-04-20 09:16:02 +02:00
Makefile	Linux 4.19.40	2019-05-05 14:42:41 +02:00
README	Docs: Added a pointer to the formatted docs to README	2018-03-21 09:02:53 -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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.