From: Jorgen Hansen jhansen@vmware.com
[ Upstream commit 5a16c535409f8dcb7568e20737309e3027ae3e49 ]
When the VMCI host support releases guest memory in the case where the VM was killed, the pinned guest pages aren't locked. Use set_page_dirty_lock() instead of set_page_dirty().
Testing done: Killed VM while having an active VMCI based vSocket connection and observed warning from ext4. With this fix, no warning was observed. Ran various vSocket tests without issues.
Fixes: 06164d2b72aa ("VMCI: queue pairs implementation.") Reviewed-by: Vishnu Dasa vdasa@vmware.com Signed-off-by: Jorgen Hansen jhansen@vmware.com Link: https://lore.kernel.org/r/1611160360-30299-1-git-send-email-jhansen@vmware.c... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/misc/vmw_vmci/vmci_queue_pair.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/misc/vmw_vmci/vmci_queue_pair.c b/drivers/misc/vmw_vmci/vmci_queue_pair.c index e57340e980c4b..44e29d835e246 100644 --- a/drivers/misc/vmw_vmci/vmci_queue_pair.c +++ b/drivers/misc/vmw_vmci/vmci_queue_pair.c @@ -732,7 +732,7 @@ static void qp_release_pages(struct page **pages,
for (i = 0; i < num_pages; i++) { if (dirty) - set_page_dirty(pages[i]); + set_page_dirty_lock(pages[i]);
page_cache_release(pages[i]); pages[i] = NULL;