From e818e820c6a0e819d239264fc863531bbcd72c30 Mon Sep 17 00:00:00 2001
From: Tian Tao <tiantao6@hisilicon.com>
Date: Thu, 25 Feb 2021 17:18:22 -0800
Subject: [PATCH] mm: set the sleep_mapped to true for zbud and z3fold

zpool driver adds a flag to indicate whether the zpool driver can enter an
atomic context after mapping.  This patch sets it true for z3fold and
zbud.

Link: https://lkml.kernel.org/r/1611035683-12732-3-git-send-email-tiantao6@hisilicon.com
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Reviewed-by: Vitaly Wool <vitaly.wool@konsulko.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reported-by: Mike Galbraith <efault@gmx.de>
Cc: Seth Jennings <sjenning@redhat.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Barry Song <song.bao.hua@hisilicon.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/z3fold.c | 1 +
 mm/zbud.c   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/mm/z3fold.c b/mm/z3fold.c
index c1ccf6bb0ffb..b5dafa7e44e4 100644
--- a/mm/z3fold.c
+++ b/mm/z3fold.c
@@ -1771,6 +1771,7 @@ static u64 z3fold_zpool_total_size(void *pool)
 
 static struct zpool_driver z3fold_zpool_driver = {
 	.type =		"z3fold",
+	.sleep_mapped = true,
 	.owner =	THIS_MODULE,
 	.create =	z3fold_zpool_create,
 	.destroy =	z3fold_zpool_destroy,
diff --git a/mm/zbud.c b/mm/zbud.c
index c49966ece674..7ec5f27a68b0 100644
--- a/mm/zbud.c
+++ b/mm/zbud.c
@@ -203,6 +203,7 @@ static u64 zbud_zpool_total_size(void *pool)
 
 static struct zpool_driver zbud_zpool_driver = {
 	.type =		"zbud",
+	.sleep_mapped = true,
 	.owner =	THIS_MODULE,
 	.create =	zbud_zpool_create,
 	.destroy =	zbud_zpool_destroy,