From 348332e000697b4ca82ef96719e02876434b8346 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Mon, 20 Sep 2021 14:33:12 +0200
Subject: mm: don't include <linux/blk-cgroup.h> in <linux/writeback.h>

blk-cgroup.h pulls in blkdev.h and thus pretty much all the block
headers.  Break this dependency chain by turning wbc_blkcg_css into a
macro and dropping the blk-cgroup.h include.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20210920123328.1399408-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 lib/random32.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'lib')

diff --git a/lib/random32.c b/lib/random32.c
index 4d0e05e471d7..a57a0e18819d 100644
--- a/lib/random32.c
+++ b/lib/random32.c
@@ -39,6 +39,7 @@
 #include <linux/random.h>
 #include <linux/sched.h>
 #include <linux/bitops.h>
+#include <linux/slab.h>
 #include <asm/unaligned.h>
 #include <trace/events/random.h>
 
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