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Stefan Haberland 6deb8727f2 s390/dasd: print copy pair message only for the correct error
commit 856d8e3c63 upstream.

The DASD driver has certain types of requests that might be rejected by
the storage server or z/VM because they are not supported. Since the
missing support of the command is not a real issue there is no user
visible kernel error message for this.

For copy pair setups  there is a specific error that IO is not allowed on
secondary devices. This error case is explicitly handled and an error
message is printed.

The code checking for the error did use a bitwise 'and' that is used to
check for specific bits. But in this case the whole sense byte has to
match.

This leads to the problem that the copy pair related error message is
erroneously printed for other error cases that are usually not reported.
This might heavily confuse users and lead to follow on actions that might
disrupt application processing.

Fix by checking the sense byte for the exact value and not single bits.

Cc: stable@vger.kernel.org # 6.1+
Fixes: 1fca631a11 ("s390/dasd: suppress generic error messages for PPRC secondary devices")
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Link: https://lore.kernel.org/r/20230721193647.3889634-5-sth@linux.ibm.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-03 10:24:16 +02:00
arch LoongArch: BPF: Enable bpf_probe_read{, str}() on LoongArch 2023-08-03 10:24:16 +02:00
block blk-mq: Fix stall due to recursive flush plug 2023-08-03 10:23:48 +02:00
certs certs: Fix build error when PKCS#11 URI contains semicolon 2023-02-09 11:28:11 +01:00
crypto crypto: jitter - correct health test during initialization 2023-07-19 16:21:42 +02:00
Documentation xen: speed up grant-table reclaim 2023-08-03 10:24:14 +02:00
drivers s390/dasd: print copy pair message only for the correct error 2023-08-03 10:24:16 +02:00
fs proc/vmcore: fix signedness bug in read_from_oldmem() 2023-08-03 10:24:14 +02:00
include block: Fix a source code comment in include/uapi/linux/blkzoned.h 2023-08-03 10:24:04 +02:00
init gcc: disable '-Warray-bounds' for gcc-13 too 2023-04-26 14:28:43 +02:00
io_uring io_uring: don't audit the capability check in io_uring_create() 2023-08-03 10:23:48 +02:00
ipc ipc: fix memory leak in init_mqueue_fs() 2022-12-31 13:32:01 +01:00
kernel locking/rtmutex: Fix task->pi_waiters integrity 2023-08-03 10:24:14 +02:00
lib maple_tree: fix 32 bit mas_next testing 2023-08-03 10:23:55 +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 kasan: add kasan_tag_mismatch prototype 2023-07-23 13:49:32 +02:00
net tipc: stop tipc crypto on failure in tipc_node_create 2023-08-03 10:24:02 +02:00
rust rust: kernel: Mark rust_fmt_argument as extern "C" 2023-04-26 14:28:38 +02:00
samples samples: ftrace: Save required argument registers in sample trampolines 2023-07-23 13:49:44 +02:00
scripts scripts/kallsyms: update the usage in the comment block 2023-07-27 08:50:50 +02:00
security security: keys: Modify mismatched function name 2023-07-27 08:50:43 +02:00
sound ALSA: hda/relatek: Enable Mute LED on HP 250 G8 2023-08-03 10:24:12 +02:00
tools selftests: mptcp: join: only check for ip6tables if needed 2023-08-03 10:24:15 +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: Grab a reference to KVM for VM and vCPU stats file descriptors 2023-08-03 10:24:08 +02:00
.clang-format inet: ping: use hlist_nulls rcu iterator during lookup 2022-12-01 12:42:46 +01:00
.cocciconfig
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes
.gitignore Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
.mailmap 9 hotfixes. 6 for MM, 3 for other areas. Four of these patches address 2022-12-10 17:10:52 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Remove Michal Marek from Kbuild maintainers 2022-11-16 14:53:00 +09:00
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 smb: move client and server files to common directory fs/smb 2023-06-28 11:12:40 +02:00
Makefile Linux 6.1.42 2023-07-27 08:50:53 +02:00
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.