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Michael Kelley 3e41ff977a nvme: Fix IOC_PR_CLEAR and IOC_PR_RELEASE ioctls for nvme devices 
[ Upstream commit c292a337d0 ]

The IOC_PR_CLEAR and IOC_PR_RELEASE ioctls are
non-functional on NVMe devices because the nvme_pr_clear()
and nvme_pr_release() functions set the IEKEY field incorrectly.
The IEKEY field should be set only when the key is zero (i.e,
not specified).  The current code does it backwards.

Furthermore, the NVMe spec describes the persistent
reservation "clear" function as an option on the reservation
release command. The current implementation of nvme_pr_clear()
erroneously uses the reservation register command.

Fix these errors. Note that NVMe version 1.3 and later specify
that setting the IEKEY field will return an error of Invalid
Field in Command.  The fix will set IEKEY when the key is zero,
which is appropriate as these ioctls consider a zero key to
be "unspecified", and the intention of the spec change is
to require a valid key.

Tested on a version 1.4 PCI NVMe device in an Azure VM.

Fixes: 1673f1f08c ("nvme: move block_device_operations and ns/ctrl freeing to common code")
Fixes: 1d277a637a ("NVMe: Add persistent reservation ops")
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2022-10-26 13:16:50 +02:00
Documentation x86/bugs: Add "unknown" reporting for MMIO Stale Data 2022-09-05 10:25:05 +02:00
arch MIPS: lantiq: export clk_get_io() for lantiq_wdt.ko 2022-09-28 10:56:51 +02:00
block block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern 2022-06-06 08:20:57 +02:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-25 11:46:44 +02:00
crypto crypto: drbg - make reseeding from get_random_bytes() synchronous 2022-06-25 11:46:41 +02:00
drivers nvme: Fix IOC_PR_CLEAR and IOC_PR_RELEASE ioctls for nvme devices 2022-10-26 13:16:50 +02:00
firmware Fix built-in early-load Intel microcode alignment 2020-01-23 08:20:30 +01:00
fs ntfs: fix BUG_ON in ntfs_lookup_inode_by_name() 2022-10-26 13:16:49 +02:00
include serial: Create uart_xmit_advance() 2022-09-28 10:56:52 +02:00
init random: handle latent entropy and command line from random_init() 2022-06-25 11:46:40 +02:00
ipc ipc: WARN if trying to remove ipc object which is absent 2021-12-08 08:46:53 +01:00
kernel kprobes: Prohibit probes in gate area 2022-09-15 12:23:52 +02:00
lib ratelimit: Fix data-races in ___ratelimit(). 2022-09-05 10:25:04 +02:00
mm mm/migrate_device.c: flush TLB while holding PTL 2022-10-26 13:16:50 +02:00
net netfilter: ebtables: fix memory leak when blob is malformed 2022-09-28 10:56:51 +02:00
samples samples/kretprobes: Fix return value if register_kretprobe() failed 2021-11-26 11:40:31 +01:00
scripts mksysmap: Fix the mismatch of 'L0' symbols in System.map 2022-09-28 10:56:49 +02:00
security apparmor: fix reference count leak in aa_pivotroot() 2022-08-25 11:11:32 +02:00
sound ALSA: hda: add Intel 5 Series / 3400 PCI DID 2022-09-28 10:56:50 +02:00
tools perf kcore_copy: Do not check /proc/modules is unchanged 2022-09-28 10:56:51 +02:00
usr initramfs: restore default compression behavior 2020-04-13 10:34:19 +02:00
virt KVM: Add infrastructure and macro to mark VM as bugged 2022-08-25 11:11:29 +02:00
.cocciconfig
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.get_maintainer.ignore
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.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore kbuild: rpm-pkg: keep spec file until make mrproper 2018-02-13 10:19:46 +01:00
.mailmap .mailmap: Add Maciej W. Rozycki's Imagination e-mail address 2017-11-10 12:16:15 -08:00
COPYING
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CREDITS MAINTAINERS: update TPM driver infrastructure changes 2017-11-09 17:58:40 -08:00
Kbuild License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
MAINTAINERS MAINTAINERS: co-maintain random.c 2022-06-25 11:46:29 +02:00
Makefile Linux 4.14.295 2022-09-28 10:56:52 +02:00
README README: add a new README file, pointing to the Documentation/ 2016-10-24 08:12:35 -02:00

README 

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

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

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.