linux-kernel - [PATCH 2/2] bdi: Use might

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Message-Id: <20210113134033.3569683-2-daniel.vetter@ffwll.ch>
Date:   Wed, 13 Jan 2021 14:40:33 +0100
From:   Daniel Vetter <daniel.vetter@...ll.ch>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     Daniel Vetter <daniel.vetter@...ll.ch>,
        Daniel Vetter <daniel.vetter@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org
Subject: [PATCH 2/2] bdi: Use might_alloc()

Now that my little helper has landed, use it more. On top of the
existing check this also uses lockdep through the fs_reclaim
annotations.

Signed-off-by: Daniel Vetter <daniel.vetter@...el.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-mm@...ck.org
---
 mm/backing-dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index e33797579338..3bb7807c2f0c 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -580,7 +580,7 @@ struct bdi_writeback *wb_get_create(struct backing_dev_info *bdi,
 {
 	struct bdi_writeback *wb;
 
-	might_sleep_if(gfpflags_allow_blocking(gfp));
+	might_alloc(mem_flags);
 
 	if (!memcg_css->parent)
 		return &bdi->wb;
-- 
2.29.2