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dm: Refactor is_abnormal_io()

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Use a single switch-case to simplify is_abnormal_io() and make this
function more readable and easier to modify.

Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20240704052816.623865-3-dlemoal@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Damien Le Moal 2024-07-04 14:28:13 +09:00 committed by Jens Axboe
parent f4d5dc33c8
commit ae7e965b36
1 changed files with 11 additions and 13 deletions
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24
drivers/md/dm.c
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@ -1598,20 +1598,18 @@ static void __send_abnormal_io(struct clone_info *ci, struct dm_target *ti,
static bool is_abnormal_io(struct bio *bio)
{
enum req_op op = bio_op(bio);
if (op != REQ_OP_READ && op != REQ_OP_WRITE && op != REQ_OP_FLUSH) {
switch (op) {
case REQ_OP_DISCARD:
case REQ_OP_SECURE_ERASE:
case REQ_OP_WRITE_ZEROES:
return true;
default:
break;
}
switch (bio_op(bio)) {
case REQ_OP_READ:
case REQ_OP_WRITE:
case REQ_OP_FLUSH:
return false;
case REQ_OP_DISCARD:
case REQ_OP_SECURE_ERASE:
case REQ_OP_WRITE_ZEROES:
return true;
default:
return false;
}
return false;
}
static blk_status_t __process_abnormal_io(struct clone_info *ci,