[PATCH 6.8 007/158] scsi: core: Fix handling of SCMD_FAIL_IF_RECOVERING

Greg Kroah-Hartman
2024-04-23T21:41:07Z

From: Bart Van Assche <bvanassche@acm.org>

commit ca91259b775f6fd98ae5d23bb4eec101d468ba8d upstream.

There is code in the SCSI core that sets the SCMD_FAIL_IF_RECOVERING
flag but there is no code that clears this flag. Instead of only clearing
SCMD_INITIALIZED in scsi_end_request(), clear all flags. It is never
necessary to preserve any command flags inside scsi_end_request().

Cc: stable@vger.kernel.org
Fixes: 310bcaef6d7e ("scsi: core: Support failing requests while recovering")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20240325224417.1477135-1-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/scsi/scsi_lib.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -543,10 +543,9 @@ static bool scsi_end_request(struct requ
if (blk_queue_add_random(q))
add_disk_randomness(req->q->disk);

- if (!blk_rq_is_passthrough(req)) {
- WARN_ON_ONCE(!(cmd->flags & SCMD_INITIALIZED));
- cmd->flags &= ~SCMD_INITIALIZED;
- }
+ WARN_ON_ONCE(!blk_rq_is_passthrough(req) &&
+ !(cmd->flags & SCMD_INITIALIZED));
+ cmd->flags = 0;

/*
* Calling rcu_barrier() is not necessary here because the