From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Vineeth Vijayan <vneethv@linux.ibm.com>,
Peter Oberparleiter <oberpar@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Sasha Levin <sashal@kernel.org>,
hca@linux.ibm.com, gor@linux.ibm.com, linux-s390@vger.kernel.org
Subject: [PATCH AUTOSEL 5.15 02/16] s390/cio: unregister device when the only path is gone
Date: Fri, 16 Jun 2023 06:27:05 -0400 [thread overview]
Message-ID: <20230616102721.673775-2-sashal@kernel.org> (raw)
In-Reply-To: <20230616102721.673775-1-sashal@kernel.org>
From: Vineeth Vijayan <vneethv@linux.ibm.com>
[ Upstream commit 89c0c62e947a01e7a36b54582fd9c9e346170255 ]
Currently, if the device is offline and all the channel paths are
either configured or varied offline, the associated subchannel gets
unregistered. Don't unregister the subchannel, instead unregister
offline device.
Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/s390/cio/device.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index b21fa57d1a46b..a111154a90465 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1379,6 +1379,7 @@ void ccw_device_set_notoper(struct ccw_device *cdev)
enum io_sch_action {
IO_SCH_UNREG,
IO_SCH_ORPH_UNREG,
+ IO_SCH_UNREG_CDEV,
IO_SCH_ATTACH,
IO_SCH_UNREG_ATTACH,
IO_SCH_ORPH_ATTACH,
@@ -1411,7 +1412,7 @@ static enum io_sch_action sch_get_action(struct subchannel *sch)
}
if ((sch->schib.pmcw.pam & sch->opm) == 0) {
if (ccw_device_notify(cdev, CIO_NO_PATH) != NOTIFY_OK)
- return IO_SCH_UNREG;
+ return IO_SCH_UNREG_CDEV;
return IO_SCH_DISC;
}
if (device_is_disconnected(cdev))
@@ -1473,6 +1474,7 @@ static int io_subchannel_sch_event(struct subchannel *sch, int process)
case IO_SCH_ORPH_ATTACH:
ccw_device_set_disconnected(cdev);
break;
+ case IO_SCH_UNREG_CDEV:
case IO_SCH_UNREG_ATTACH:
case IO_SCH_UNREG:
if (!cdev)
@@ -1506,6 +1508,7 @@ static int io_subchannel_sch_event(struct subchannel *sch, int process)
if (rc)
goto out;
break;
+ case IO_SCH_UNREG_CDEV:
case IO_SCH_UNREG_ATTACH:
spin_lock_irqsave(sch->lock, flags);
sch_set_cdev(sch, NULL);
--
2.39.2
next prev parent reply other threads:[~2023-06-16 10:33 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-16 10:27 [PATCH AUTOSEL 5.15 01/16] Input: soc_button_array - add invalid acpi_index DMI quirk handling Sasha Levin
2023-06-16 10:27 ` Sasha Levin [this message]
2023-06-16 10:27 ` [PATCH AUTOSEL 5.15 03/16] spi: lpspi: disable lpspi module irq in DMA mode Sasha Levin
2023-06-16 10:27 ` [PATCH AUTOSEL 5.15 04/16] ASoC: simple-card: Add missing of_node_put() in case of error Sasha Levin
2023-06-16 10:27 ` [PATCH AUTOSEL 5.15 05/16] soundwire: dmi-quirks: add new mapping for HP Spectre x360 Sasha Levin
2023-06-16 10:27 ` [PATCH AUTOSEL 5.15 06/16] soundwire: qcom: add proper error paths in qcom_swrm_startup() Sasha Levin
2023-06-16 10:27 ` [PATCH AUTOSEL 5.15 07/16] ASoC: nau8824: Add quirk to active-high jack-detect Sasha Levin
2023-06-16 10:27 ` [PATCH AUTOSEL 5.15 08/16] s390/purgatory: disable branch profiling Sasha Levin
2023-06-16 10:27 ` [PATCH AUTOSEL 5.15 09/16] ARM: dts: Fix erroneous ADS touchscreen polarities Sasha Levin
2023-06-16 10:27 ` [PATCH AUTOSEL 5.15 10/16] drm/exynos: vidi: fix a wrong error return Sasha Levin
2023-06-16 10:27 ` [PATCH AUTOSEL 5.15 11/16] drm/exynos: fix race condition UAF in exynos_g2d_exec_ioctl Sasha Levin
2023-06-16 10:27 ` [PATCH AUTOSEL 5.15 12/16] drm/radeon: fix race condition UAF in radeon_gem_set_domain_ioctl Sasha Levin
2023-06-16 10:27 ` [PATCH AUTOSEL 5.15 13/16] Revert "ext4: don't clear SB_RDONLY when remounting r/w until quota is re-enabled" Sasha Levin
2023-06-16 10:27 ` [PATCH AUTOSEL 5.15 14/16] ext4: only check dquot_initialize_needed() when debugging Sasha Levin
2023-06-16 10:27 ` [PATCH AUTOSEL 5.15 15/16] vhost_vdpa: tell vqs about the negotiated Sasha Levin
2023-06-16 10:27 ` [PATCH AUTOSEL 5.15 16/16] vhost_net: revert upend_idx only on retriable error Sasha Levin
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