This is a note to let you know that I've just added the patch titled
nvme-fc: use ctrl state getter
to the 6.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
nvme-fc-use-ctrl-state-getter.patch
and it can be found in the queue-6.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 7683ba62df9bc12135959e982b062d39f93d25f5
Author: Daniel Wagner <wagi@xxxxxxxxxx>
Date: Tue Jan 28 17:34:47 2025 +0100
nvme-fc: use ctrl state getter
[ Upstream commit c8ed6cb5d37bc09c7e25e49a670e9fd1a3bd1dfa ]
Do not access the state variable directly, instead use proper
synchronization so not stale data is read.
Fixes: e6e7f7ac03e4 ("nvme: ensure reset state check ordering")
Signed-off-by: Daniel Wagner <wagi@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Sagi Grimberg <sagi@xxxxxxxxxxx>
Signed-off-by: Keith Busch <kbusch@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index b81af7919e94c..682234da2fabe 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -2080,7 +2080,8 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req)
nvme_fc_complete_rq(rq);
check_error:
- if (terminate_assoc && ctrl->ctrl.state != NVME_CTRL_RESETTING)
+ if (terminate_assoc &&
+ nvme_ctrl_state(&ctrl->ctrl) != NVME_CTRL_RESETTING)
queue_work(nvme_reset_wq, &ctrl->ioerr_work);
}
@@ -2534,6 +2535,8 @@ __nvme_fc_abort_outstanding_ios(struct nvme_fc_ctrl *ctrl, bool start_queues)
static void
nvme_fc_error_recovery(struct nvme_fc_ctrl *ctrl, char *errmsg)
{
+ enum nvme_ctrl_state state = nvme_ctrl_state(&ctrl->ctrl);
+
/*
* if an error (io timeout, etc) while (re)connecting, the remote
* port requested terminating of the association (disconnect_ls)
@@ -2541,7 +2544,7 @@ nvme_fc_error_recovery(struct nvme_fc_ctrl *ctrl, char *errmsg)
* the controller. Abort any ios on the association and let the
* create_association error path resolve things.
*/
- if (ctrl->ctrl.state == NVME_CTRL_CONNECTING) {
+ if (state == NVME_CTRL_CONNECTING) {
__nvme_fc_abort_outstanding_ios(ctrl, true);
set_bit(ASSOC_FAILED, &ctrl->flags);
dev_warn(ctrl->ctrl.device,
@@ -2551,7 +2554,7 @@ nvme_fc_error_recovery(struct nvme_fc_ctrl *ctrl, char *errmsg)
}
/* Otherwise, only proceed if in LIVE state - e.g. on first error */
- if (ctrl->ctrl.state != NVME_CTRL_LIVE)
+ if (state != NVME_CTRL_LIVE)
return;
dev_warn(ctrl->ctrl.device,
