Re: [PATCH] print_req_error: Use dev_err_ratelimited
From: Tony Asleson <hidden>
Date: 2020-11-17 20:41:38
Also in:
lkml
Any thoughts on this? Getting all the error paths to go through dev_printk is quite useful. On 10/26/20 11:05 AM, Tony Asleson wrote:
quoted hunk ↗ jump to hunk
Replace printk_ratelimited with dev_err_ratelimited which adds dev_printk meta data. This is used by journald to add disk ID information to the journal entry. Signed-off-by: Tony Asleson <redacted> --- block/blk-core.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)diff --git a/block/blk-core.c b/block/blk-core.c index 10c08ac50697..ee5d63e54a11 100644 --- a/block/blk-core.c +++ b/block/blk-core.c@@ -216,16 +216,18 @@ EXPORT_SYMBOL_GPL(blk_status_to_errno); static void print_req_error(struct request *req, blk_status_t status, const char *caller) { + struct device *dev; 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 op 0x%x:(%s) flags 0x%x " + dev = req->rq_disk ? disk_to_dev(req->rq_disk) : NULL; + + dev_err_ratelimited(dev, + "%s: %s error, sector %llu op 0x%x:(%s) flags 0x%x " "phys_seg %u prio class %u\n", caller, blk_errors[idx].name, - req->rq_disk ? req->rq_disk->disk_name : "?", blk_rq_pos(req), req_op(req), blk_op_str(req_op(req)), req->cmd_flags & ~REQ_OP_MASK, req->nr_phys_segments,base-commit: bbf5c979011a099af5dc76498918ed7df445635b