From: Tian Tao <tiantao6@hisilicon.com>
Subject: 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 <redacted>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reported-by: Mike Galbraith <redacted>
Cc: Seth Jennings <redacted>
Cc: Dan Streetman <redacted>
Cc: Barry Song <redacted>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/z3fold.c |    1 +
 mm/zbud.c   |    1 +
 2 files changed, 2 insertions(+)

--- a/mm/z3fold.c~mm-set-the-sleep_mapped-to-true-for-zbud-and-z3fold
+++ a/mm/z3fold.c

@@ -1771,6 +1771,7 @@ static u64 z3fold_zpool_total_size(void
 
 static struct zpool_driver z3fold_zpool_driver = {
 	.type =		"z3fold",
+	.sleep_mapped = true,
 	.owner =	THIS_MODULE,
 	.create =	z3fold_zpool_create,
 	.destroy =	z3fold_zpool_destroy,
--- a/mm/zbud.c~mm-set-the-sleep_mapped-to-true-for-zbud-and-z3fold
+++ a/mm/zbud.c

@@ -203,6 +203,7 @@ static u64 zbud_zpool_total_size(void *p
 
 static struct zpool_driver zbud_zpool_driver = {
 	.type =		"zbud",
+	.sleep_mapped = true,
 	.owner =	THIS_MODULE,
 	.create =	zbud_zpool_create,
 	.destroy =	zbud_zpool_destroy,

_