[PATCH V5 14/14] powerpc/vas: Free send window in VAS instance after credits returned

Haren Myneni haren at linux.ibm.com
Wed Jan 22 19:26:04 AEDT 2020


NX may be processing requests while trying to close window. Wait until
all credits are returned and then free send window from VAS instance.

Signed-off-by: Haren Myneni <haren at linux.ibm.com>
---
 arch/powerpc/platforms/powernv/vas-window.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c
index 88cecff..5f9c915 100644
--- a/arch/powerpc/platforms/powernv/vas-window.c
+++ b/arch/powerpc/platforms/powernv/vas-window.c
@@ -1316,14 +1316,14 @@ int vas_win_close(struct vas_window *window)
 
 	unmap_paste_region(window);
 
-	clear_vinst_win(window);
-
 	poll_window_busy_state(window);
 
 	unpin_close_window(window);
 
 	poll_window_credits(window);
 
+	clear_vinst_win(window);
+
 	poll_window_castout(window);
 
 	/* if send window, drop reference to matching receive window */
-- 
1.8.3.1





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