linux_dsm_epyc7002/drivers/s390/block
Hannes Reinecke 5ea34a0142 s390/dasd: Fail all requests when DASD_FLAG_ABORTIO is set
Whenever a DASD request encounters a timeout we might
need to abort all outstanding requests on this or
even other devices.

This is especially useful if one wants to fail all
devices on one side of a RAID10 configuration, even
though only one device exhibited an error.

To handle this I've introduced a new device flag
DASD_FLAG_ABORTIO.
This flag is evaluated in __dasd_process_request_queue()
and will invoke blk_abort_request() for all
outstanding requests with DASD_CQR_FLAGS_FAILFAST set.
This will cause any of these requests to be aborted
immediately if the blk_timeout function is activated.

The DASD_FLAG_ABORTIO is also evaluated in
__dasd_process_request_queue to abort all
new request which would have the
DASD_CQR_FLAGS_FAILFAST bit set.

The flag can be set with the new ioctls 'BIODASDABORTIO'
and removed with 'BIODASDALLOWIO'.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-07-01 17:31:26 +02:00
..
dasd_3990_erp.c s390/time: rename tod clock access functions 2013-02-14 15:55:10 +01:00
dasd_alias.c s390/time: rename tod clock access functions 2013-02-14 15:55:10 +01:00
dasd_devmap.c s390/dasd: Add 'timeout' attribute 2013-07-01 17:31:25 +02:00
dasd_diag.c s390/dasd: Implement block timeout handling 2013-07-01 17:31:20 +02:00
dasd_diag.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
dasd_eckd.c s390/dasd: Implement block timeout handling 2013-07-01 17:31:20 +02:00
dasd_eckd.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
dasd_eer.c s390/time: rename tod clock access functions 2013-02-14 15:55:10 +01:00
dasd_erp.c s390/dasd: Reduce amount of messages for specific errors 2013-07-01 17:31:21 +02:00
dasd_fba.c s390/dasd: Implement block timeout handling 2013-07-01 17:31:20 +02:00
dasd_fba.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
dasd_genhd.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
dasd_int.h s390/dasd: Fail all requests when DASD_FLAG_ABORTIO is set 2013-07-01 17:31:26 +02:00
dasd_ioctl.c s390/dasd: Fail all requests when DASD_FLAG_ABORTIO is set 2013-07-01 17:31:26 +02:00
dasd_proc.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
dasd.c s390/dasd: Fail all requests when DASD_FLAG_ABORTIO is set 2013-07-01 17:31:26 +02:00
dcssblk.c Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block 2013-05-08 10:13:35 -07:00
Kconfig s390/scm_block: force cluster writes 2012-09-26 15:45:01 +02:00
Makefile s390/scm_block: force cluster writes 2012-09-26 15:45:01 +02:00
scm_blk_cluster.c s390/scm_blk: allow more cluster size values 2013-04-26 09:07:15 +02:00
scm_blk.c block_device_operations->release() should return void 2013-05-07 02:16:21 -04:00
scm_blk.h s390/scm_blk: suspend writes 2013-03-07 09:52:23 +01:00
scm_drv.c s390/scm_block: fix printk format string 2013-03-21 13:35:37 +01:00
xpram.c s390/xpram: mark xpram as non-rotational 2013-05-17 11:47:04 +02:00