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Stefan Haberland d28f76be79 s390/dasd: fix hanging device after request requeue
[ Upstream commit 8a2278ce9c ]

The DASD device driver has a function to requeue requests to the
blocklayer.
This function is used in various cases when basic settings for the device
have to be changed like High Performance Ficon related parameters or copy
pair settings.

The functions iterates over the device->ccw_queue and also removes the
requests from the block->ccw_queue.
In case the device is started on an alias device instead of the base
device it might be removed from the block->ccw_queue without having it
canceled properly before. This might lead to a hanging device since the
request is no longer on a queue and can not be handled properly.

Fix by iterating over the block->ccw_queue instead of the
device->ccw_queue. This will take care of all blocklayer related requests
and handle them on all associated DASD devices.

Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Link: https://lore.kernel.org/r/20230721193647.3889634-4-sth@linux.ibm.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-13 09:42:22 +02:00
Documentation media: uapi: HEVC: Add num_delta_pocs_of_ref_rps_idx field 2023-09-13 09:42:20 +02:00
LICENSES
arch m68k: Fix invalid .section syntax 2023-09-13 09:42:21 +02:00
block blk-crypto: dynamically allocate fallback profile 2023-08-23 17:52:39 +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
drivers s390/dasd: fix hanging device after request requeue 2023-09-13 09:42:22 +02:00
fs ksmbd: fix out of bounds in init_smb2_rsp_hdr() 2023-09-13 09:42:21 +02:00
include media: uapi: HEVC: Add num_delta_pocs_of_ref_rps_idx field 2023-09-13 09:42:20 +02:00
init x86/mm: Initialize text poking earlier 2023-08-08 20:03:49 +02:00
io_uring io_uring/parisc: Adjust pgoff in io_uring mmap() for parisc 2023-09-02 09:16:19 +02:00
ipc ipc: fix memory leak in init_mqueue_fs() 2022-12-31 13:32:01 +01:00
kernel modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules 2023-09-06 21:27:00 +01:00
lib maple_tree: disable mas_wr_append() when other readers are possible 2023-08-30 16:11:13 +02:00
mm madvise:madvise_free_pte_range(): don't use mapcount() against large folio for sharing check 2023-08-30 16:11:11 +02:00
net 9p: virtio: make sure 'offs' is initialized in zc_request 2023-09-13 09:42:21 +02:00
rust rust: allocator: Prevent mis-aligned allocation 2023-08-11 12:08:18 +02:00
samples samples: ftrace: Save required argument registers in sample trampolines 2023-07-23 13:49:44 +02:00
scripts gcc-plugins: Reorganize gimple includes for GCC 13 2023-08-16 18:27:20 +02:00
security selinux: set next pointer before attaching to list 2023-08-30 16:11:07 +02:00
sound ASoC: nau8821: Add DMI quirk mechanism for active-high jack-detect 2023-09-13 09:42:21 +02:00
tools selftests/net: mv bpf/nat6to4.c to net folder 2023-08-30 16:11:10 +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
.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
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
MAINTAINERS devlink: move code to a dedicated directory 2023-08-30 16:11:00 +02:00
Makefile Linux 6.1.52 2023-09-06 21:27:03 +01:00
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.