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block: improve print_req_error 

Print the calling function instead of print_req_error as a prefix, and
print the operation and op_flags separately instead of the whole field.

Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2019-06-20 10:59:15 -07:00 committed by Jens Axboe
parent 8060c47ba8
commit 178cc590e5
1 changed files with 9 additions and 7 deletions
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16
block/blk-core.c
View File

@ -167,18 +167,20 @@ int blk_status_to_errno(blk_status_t status)
}
EXPORT_SYMBOL_GPL(blk_status_to_errno);
static void print_req_error(struct request *req, blk_status_t status)
static void print_req_error(struct request *req, blk_status_t status,
const char *caller)
{
int idx = (__force int)status;
if (WARN_ON_ONCE(idx >= ARRAY_SIZE(blk_errors)))
return;
printk_ratelimited(KERN_ERR "%s: %s error, dev %s, sector %llu flags %x\n",
__func__, blk_errors[idx].name,
req->rq_disk ? req->rq_disk->disk_name : "?",
(unsigned long long)blk_rq_pos(req),
req->cmd_flags);
printk_ratelimited(KERN_ERR
"%s: %s error, dev %s, sector %llu op 0x%x flags 0x%x\n",
caller, blk_errors[idx].name,
req->rq_disk ? req->rq_disk->disk_name : "?",
blk_rq_pos(req), req_op(req),
req->cmd_flags & ~REQ_OP_MASK);
}
static void req_bio_endio(struct request *rq, struct bio *bio,
@ -1362,7 +1364,7 @@ bool blk_update_request(struct request *req, blk_status_t error,
if (unlikely(error && !blk_rq_is_passthrough(req) &&
!(req->rq_flags & RQF_QUIET)))
print_req_error(req, error);
print_req_error(req, error, __func__);
blk_account_io_completion(req, nr_bytes);