From 1cf53c894d15dd4b73397a56fa055d76d3db66b4 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Fri, 21 Jan 2022 22:14:51 -0800
Subject: frontswap: simplify frontswap_init

Just use IS_ENABLED() and remove the __frontswap_init indirection.

Also remove the unused export.

Link: https://lkml.kernel.org/r/20211224062246.1258487-7-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Konrad Rzeszutek Wilk <Konrad.wilk@oracle.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Seth Jennings <sjenning@redhat.com>
Cc: Vitaly Wool <vitaly.wool@konsulko.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/swapfile.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'mm/swapfile.c')

diff --git a/mm/swapfile.c b/mm/swapfile.c
index caa9f81a0d15..df5930ccd93d 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2463,7 +2463,8 @@ static void enable_swap_info(struct swap_info_struct *p, int prio,
 				struct swap_cluster_info *cluster_info,
 				unsigned long *frontswap_map)
 {
-	frontswap_init(p->type, frontswap_map);
+	if (IS_ENABLED(CONFIG_FRONTSWAP))
+		frontswap_init(p->type, frontswap_map);
 	spin_lock(&swap_lock);
 	spin_lock(&p->lock);
 	setup_swap_info(p, prio, swap_map, cluster_info);
-- 
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