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Eric Farman bc792884b7 s390/dasd: Establish DMA alignment 
linux-next commit bf8d08532b ("iomap: add support for dma aligned
direct-io") changes the alignment requirement to come from the block
device rather than the block size, and the default alignment
requirement is 512-byte boundaries. Since DASD I/O has page
alignments for IDAW/TIDAW requests, let's override this value to
restore the expected behavior.

Make this change for both ECKD and DIAG disciplines, as they both
would fall into this category. Leave FBA alone, since it is always
comprised of 512-byte blocks.

Signed-off-by: Eric Farman <farman@linux.ibm.com>
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Link: https://lore.kernel.org/r/20220804213926.3361574-3-sth@linux.ibm.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-08-04 16:19:15 -06:00
arch for-5.20/block-2022-07-29 2022-08-02 13:46:35 -07:00
block block: fix leaking page ref on truncated direct io 2022-08-02 21:08:54 -06:00
certs certs: make system keyring depend on x509 parser 2022-07-24 12:53:55 -07:00
crypto crypto: add crypto_has_kpp() 2022-08-02 17:14:47 -06:00
Documentation null_blk: add module parameters for 4 options 2022-08-02 17:14:50 -06:00
drivers s390/dasd: Establish DMA alignment 2022-08-04 16:19:15 -06:00
fs for-5.20/block-2022-07-29 2022-08-02 13:46:35 -07:00
include ublk_cmd.h: add one new ublk command: UBLK_IO_NEED_GET_DATA 2022-08-02 21:13:40 -06:00
init gcc-12: disable '-Warray-bounds' universally for now 2022-06-09 10:11:12 -07:00
io_uring for-5.20/io_uring-zerocopy-send-2022-07-29 2022-08-02 13:37:55 -07:00
ipc ipc: Free mq_sysctls if ipc namespace creation failed 2022-06-22 17:47:41 -05:00
kernel for-5.20/block-2022-07-29 2022-08-02 13:46:35 -07:00
lib lib/base64: RFC4648-compliant base64 encoding 2022-08-02 17:14:47 -06:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm for-5.20/io_uring-buffered-writes-2022-07-29 2022-08-02 13:27:23 -07:00
net for-5.20/io_uring-zerocopy-send-2022-07-29 2022-08-02 13:37:55 -07:00
samples Fixes and minor clean ups for tracing: 2022-07-12 16:17:40 -07:00
scripts - Fix stack protector builds when cross compiling with Clang 2022-08-01 10:14:19 -07:00
security - Add the ability to pass early an RNG seed to the kernel from the boot 2022-08-01 10:17:19 -07:00
sound ASoC: Drop Rockchip BCLK management for v5.19 2022-07-15 12:31:07 +02:00
tools for-5.20/io_uring-zerocopy-send-2022-07-29 2022-08-02 13:37:55 -07:00
usr Not a lot of material this cycle. Many singleton patches against various 2022-05-27 11:22:03 -07:00
virt KVM: x86: disable preemption around the call to kvm_arch_vcpu_{un|}blocking 2022-06-09 10:52:20 -04:00
.clang-format clang-format: Fix space after for_each macros 2022-05-20 19:27:16 +02:00
.cocciconfig
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore kbuild: split the second line of *.mod into *.usyms 2022-05-08 03:16:59 +09:00
.mailmap ARM: SoC fixes for 5.19, part 4 2022-07-27 09:43:07 -07:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: mark ARM/PALM TREO SUPPORT orphan 2022-07-07 15:17:00 +02:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS nvme: update MAINTAINERS for the new auth code 2022-08-02 17:22:53 -06:00
Makefile for-5.20/io_uring-2022-07-29 2022-08-02 13:20:44 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -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.

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.