linux-kernel - [PATCH] xfs: fix len comparison in xfs_extent_busy

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Date:   Tue, 14 Feb 2017 18:08:30 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     "Darrick J. Wong" <darrick.wong@...cle.com>,
        linux-xfs@...r.kernel.org
Cc:     Christoph Hellwig <hch@....de>, Arnd Bergmann <arnd@...db.de>,
        Dave Chinner <dchinner@...hat.com>,
        Brian Foster <bfoster@...hat.com>, linux-kernel@...r.kernel.org
Subject: [PATCH] xfs: fix len comparison in xfs_extent_busy_trim

The length is now passed by reference, so the assertion has to be updated
to match the other changes, as pointed out by this W=1 warning:

fs/xfs/xfs_extent_busy.c: In function 'xfs_extent_busy_trim':
fs/xfs/xfs_extent_busy.c:356:13: error: ordered comparison of pointer with integer zero [-Werror=extra]

Fixes: ebf55872616c ("xfs: improve handling of busy extents in the low-level allocator")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 fs/xfs/xfs_extent_busy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_extent_busy.c b/fs/xfs/xfs_extent_busy.c
index ab062610234e..77760dbf0242 100644
--- a/fs/xfs/xfs_extent_busy.c
+++ b/fs/xfs/xfs_extent_busy.c
@@ -353,7 +353,7 @@ xfs_extent_busy_trim(
 	struct rb_node		*rbp;
 	bool			ret = false;
 
-	ASSERT(len > 0);
+	ASSERT(*len > 0);
 
 	spin_lock(&args->pag->pagb_lock);
 restart:
-- 
2.9.0