diff options
| author | Javed Hasan <jhasan@marvell.com> | 2023-09-01 09:06:46 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-10 22:53:32 +0300 |
| commit | 38ef4b2e4dca1770261d5eb88ba592727f2c24bb (patch) | |
| tree | bae271874e38ae492162592c10c5878fa8cbfdb2 /drivers/scsi/qedf/qedf_main.c | |
| parent | 2081b2a15b08933273f887e9b4018cf90599fa17 (diff) | |
| download | linux-38ef4b2e4dca1770261d5eb88ba592727f2c24bb.tar.xz | |
scsi: qedf: Add synchronization between I/O completions and abort
[ Upstream commit 7df0b2605489bef3f4223ad66f1f9bb8d50d4cd2 ]
Avoid race condition between I/O completion and abort processing by
protecting the cmd_type with the rport lock.
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Link: https://lore.kernel.org/r/20230901060646.27885-1-skashyap@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/scsi/qedf/qedf_main.c')
| -rw-r--r-- | drivers/scsi/qedf/qedf_main.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index 63c9368bafcf..6923862be3fb 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -2803,6 +2803,8 @@ void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe) struct qedf_ioreq *io_req; struct qedf_rport *fcport; u32 comp_type; + u8 io_comp_type; + unsigned long flags; comp_type = (cqe->cqe_data >> FCOE_CQE_CQE_TYPE_SHIFT) & FCOE_CQE_CQE_TYPE_MASK; @@ -2836,11 +2838,14 @@ void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe) return; } + spin_lock_irqsave(&fcport->rport_lock, flags); + io_comp_type = io_req->cmd_type; + spin_unlock_irqrestore(&fcport->rport_lock, flags); switch (comp_type) { case FCOE_GOOD_COMPLETION_CQE_TYPE: atomic_inc(&fcport->free_sqes); - switch (io_req->cmd_type) { + switch (io_comp_type) { case QEDF_SCSI_CMD: qedf_scsi_completion(qedf, cqe, io_req); break; |