AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-24 05:50:53 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

block/dasd: detailed I/O errors

Browse Source 
The DASD driver is using FASTFAIL as an equivalent to the
transport errors in SCSI. And the 'steal lock' function maps
roughly to a reservation error. So we should be returning the
appropriate error codes when completing a request.

Acked-by: Jens Axboe <axboe@kernel.dk>
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>
This commit is contained in:
Hannes Reinecke 2013-01-30 09:26:16 +00:00 committed by Martin Schwidefsky
parent f6f8034030
commit d1ffc1f866
2 changed files with 16 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
block/blk-core.c
View File

@ -2315,6 +2315,9 @@ bool blk_update_request(struct request *req, int error, unsigned int nr_bytes)
case -EBADE:
error_type = "critical nexus";
break;
case -ETIMEDOUT:
error_type = "timeout";
break;
case -EIO:
default:
error_type = "I/O";

16
drivers/s390/block/dasd.c
View File

@ -2183,7 +2183,7 @@ static int _dasd_sleep_on(struct dasd_ccw_req *maincqr, int interruptible)
test_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags) &&
(!dasd_eer_enabled(device))) {
cqr->status = DASD_CQR_FAILED;
cqr->intrc = -EAGAIN;
cqr->intrc = -ENOLINK;
continue;
}
/* Don't try to start requests if device is stopped */
@ -2590,8 +2590,17 @@ static void __dasd_cleanup_cqr(struct dasd_ccw_req *cqr)
req = (struct request *) cqr->callback_data;
dasd_profile_end(cqr->block, cqr, req);
status = cqr->block->base->discipline->free_cp(cqr, req);
if (status <= 0)
error = status ? status : -EIO;
if (status < 0)
error = status;
else if (status == 0) {
if (cqr->intrc == -EPERM)
error = -EBADE;
else if (cqr->intrc == -ENOLINK ||
cqr->intrc == -ETIMEDOUT)
error = cqr->intrc;
else
error = -EIO;
}
__blk_end_request_all(req, error);
}
@ -2692,6 +2701,7 @@ static void __dasd_block_start_head(struct dasd_block *block)
test_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags) &&
(!dasd_eer_enabled(block->base))) {
cqr->status = DASD_CQR_FAILED;
cqr->intrc = -ENOLINK;
dasd_schedule_block_bh(block);
continue;
}