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linux/drivers/s390/block
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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
..
dasd_3990_erp.c s390/dasd: handle request magic consistently as unsigned int 2021-10-20 08:10:41 -06:00
dasd_alias.c s390/dasd: fix list corruption of lcu list 2020-12-17 13:41:30 -07:00
dasd_devmap.c s390/dasd: use default_groups in kobj_type 2022-01-08 17:44:05 +01:00
dasd_diag.c s390/dasd: Establish DMA alignment 2022-08-04 16:19:15 -06:00
dasd_diag.h
dasd_eckd.c s390/dasd: Establish DMA alignment 2022-08-04 16:19:15 -06:00
dasd_eckd.h s390/dasd: summarize dasd configuration data in a separate structure 2021-10-20 08:10:42 -06:00
dasd_eer.c s390/dasd: Handle out-of-space constraint 2019-07-11 20:39:54 +02:00
dasd_erp.c s390/dasd: handle request magic consistently as unsigned int 2021-10-20 08:10:41 -06:00
dasd_fba.c dasd: don't set the discard_alignment queue limit 2022-05-03 10:38:50 -06:00
dasd_fba.h s390/dasd: fix typo in copyright statement 2019-12-20 11:52:01 -07:00
dasd_genhd.c block: simplify disk shutdown 2022-06-28 06:30:26 -06:00
dasd_int.h blk-mq: Drop blk_mq_ops.timeout 'reserved' arg 2022-07-06 06:33:53 -06:00
dasd_ioctl.c s390/dasd: fix kernel doc comment 2021-10-20 08:10:41 -06:00
dasd_proc.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
dasd.c s390/dasd: drop unexpected word 'for' in comments 2022-08-04 16:19:15 -06:00
dcssblk.c block: change the blk_queue_split calling convention 2022-08-02 17:22:53 -06:00
Kconfig dax: remove CONFIG_DAX_DRIVER 2021-12-04 08:58:51 -08:00
Makefile s390: remove xpram device driver 2021-09-07 13:38:42 +02:00
scm_blk.c block: remove blk_cleanup_disk 2022-06-28 06:33:15 -06:00
scm_blk.h block: remove genhd.h 2022-02-02 07:49:59 -07:00
scm_drv.c s390/scm: Make struct scm_driver::remove return void 2021-07-21 11:53:42 +02:00