Commit 1d955f98 authored Apr 15, 2020 by Haren Myneni Committed by Michael Ellerman Apr 20, 2020

powerpc/vas: Free send window in VAS instance after credits returned

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@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1587017256.2275.1076.camel@hbabu-laptop

parent bd4da68d

arch/powerpc/platforms/powernv/vas-window.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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 */