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![]() 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> |
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.. | ||
dasd.c | ||
dasd_3990_erp.c | ||
dasd_alias.c | ||
dasd_devmap.c | ||
dasd_diag.c | ||
dasd_diag.h | ||
dasd_eckd.c | ||
dasd_eckd.h | ||
dasd_eer.c | ||
dasd_erp.c | ||
dasd_fba.c | ||
dasd_fba.h | ||
dasd_genhd.c | ||
dasd_int.h | ||
dasd_ioctl.c | ||
dasd_proc.c | ||
dcssblk.c | ||
Kconfig | ||
Makefile | ||
scm_blk.c | ||
scm_blk.h | ||
scm_blk_cluster.c | ||
scm_drv.c | ||
xpram.c |