I ran into a bug where after hibernation due to incompatible backends, the block driver returned BLK_STS_NOTSUPP, with the current message it's hard to find out what the command flags were. Adding req->cmd_flags help make the problem easier to diagnose. Signed-off-by: Balbir Singh <sblbir@xxxxxxxx> Reviewed-by: Eduardo Valentin <eduval@xxxxxxxxxx> --- Testing: Compile tested at my end Changelog - convert %llx to %x and remove casting to unsigned long long block/blk-core.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index cdfabc5646da..0fd6104bb0d2 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -256,10 +256,11 @@ static void print_req_error(struct request *req, blk_status_t status) if (WARN_ON_ONCE(idx >= ARRAY_SIZE(blk_errors))) return; - printk_ratelimited(KERN_ERR "%s: %s error, dev %s, sector %llu\n", - __func__, blk_errors[idx].name, req->rq_disk ? - req->rq_disk->disk_name : "?", - (unsigned long long)blk_rq_pos(req)); + 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); } static void req_bio_endio(struct request *rq, struct bio *bio, -- 2.16.2
