5.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Adrian Hunter <adrian.hunter@xxxxxxxxx>
commit 174925d340aac55296318e43fd96c0e1d196e105 upstream.
During CQE error recovery, error-free data commands get requeued if there
is any data left to transfer, but non-data commands are completed even
though they have not been processed. Requeue them instead.
Note the only non-data command is cache flush, which would have resulted in
a cache flush being lost if it was queued at the time of CQE recovery.
Fixes: 1e8e55b67030 ("mmc: block: Add CQE support")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Reviewed-by: Avri Altman <avri.altman@xxxxxxx>
Link: https://lore.kernel.org/r/20231103084720.6886-2-adrian.hunter@xxxxxxxxx
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/mmc/core/block.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -1463,6 +1463,8 @@ static void mmc_blk_cqe_complete_rq(stru
blk_mq_requeue_request(req, true);
else
__blk_mq_end_request(req, BLK_STS_OK);
+ } else if (mq->in_recovery) {
+ blk_mq_requeue_request(req, true);
} else {
blk_mq_end_request(req, BLK_STS_OK);
}
