diff mbox series

[V4,1/5] block: improve print_req_error

Message ID 20190619171302.10146-2-chaitanya.kulkarni@wdc.com (mailing list archive)
State New, archived
Headers show
Series block: improve print_req_error | expand

Commit Message

Chaitanya Kulkarni June 19, 2019, 5:12 p.m. UTC 
From: Christoph Hellwig <hch@lst.de>

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: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
---
 block/blk-core.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

Comments

Bart Van Assche June 19, 2019, 5:48 p.m. UTC | #1 
On 6/19/19 10:12 AM, Chaitanya Kulkarni wrote:
> From: Christoph Hellwig <hch@lst.de>
> 
> 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>
diff mbox series

Patch

diff --git a/block/blk-core.c b/block/blk-core.c
index 8340f69670d8..6753231b529b 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -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,
@@ -1373,7 +1375,7 @@  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);