On 04/01/17 17:18, Vaibhav Jain wrote:
This change adds a force psl data cache flush during device shutdown
callback. This should reduce a possibility of psl holding a dirty
cache line while the CAPP is being reinitialized, which may result in
a UE [load/store] machine check error.
Signed-off-by: Vaibhav Jain <vaib...@linux.vnet.ibm.com>
Should this be cc: stable? (it does depend on aaa2245ed836 which only
came in during 4.9)
Looks good.
Reviewed-by: Andrew Donnellan <andrew.donnel...@au1.ibm.com>
---
Resend: Fixed the author ident.
---
drivers/misc/cxl/pci.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index 80a87ab..73432e7 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -1610,6 +1610,9 @@ static void cxl_pci_remove_adapter(struct cxl *adapter)
cxl_sysfs_adapter_remove(adapter);
cxl_debugfs_adapter_remove(adapter);
+ /* Flush adapter datacache as its about to be removed */
+ cxl_data_cache_flush(adapter);
+
cxl_deconfigure_adapter(adapter);
device_unregister(&adapter->dev);
--
Andrew Donnellan OzLabs, ADL Canberra
andrew.donnel...@au1.ibm.com IBM Australia Limited
