From e5a955419642e0842fd26e1ada6ab3328018ca16 Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <mawilcox@microsoft.com>
Date: Tue, 10 Apr 2018 16:36:48 -0700
Subject: fscache: use appropriate radix tree accessors

Don't open-code accesses to data structure internals.

Link: http://lkml.kernel.org/r/20180313132639.17387-7-willy@infradead.org
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/fscache/cookie.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'fs/fscache/cookie.c')

diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c
index 7dc55b93a830..97137d7ec5ee 100644
--- a/fs/fscache/cookie.c
+++ b/fs/fscache/cookie.c
@@ -832,7 +832,7 @@ void __fscache_relinquish_cookie(struct fscache_cookie *cookie,
 	/* Clear pointers back to the netfs */
 	cookie->netfs_data	= NULL;
 	cookie->def		= NULL;
-	BUG_ON(cookie->stores.rnode);
+	BUG_ON(!radix_tree_empty(&cookie->stores));
 
 	if (cookie->parent) {
 		ASSERTCMP(atomic_read(&cookie->parent->usage), >, 0);
-- 
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