[PATCH v11 13/14] powerpc/vas: Free send window in VAS instance after credits returned

From: Haren Myneni
Date: Thu Apr 16 2020 - 02:08:48 EST



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@xxxxxxxxxxxxx>
---
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 d0c07cf..e15b405 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