linux-kernel - [PATCH] f2fs: fix memory alignment to support 32bit

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Date:   Thu,  8 Oct 2020 15:11:31 -0700
From:   Jaegeuk Kim <jaegeuk@...nel.org>
To:     linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net, kernel-team@...roid.com
Cc:     Jaegeuk Kim <jaegeuk@...nel.org>,
        Nicolas Chauvet <kwizart@...il.com>,
        Chao Yu <yuchao0@...wei.com>
Subject: [PATCH] f2fs: fix memory alignment to support 32bit

In 32bit system, 64-bits key breaks memory alignment.
This fixes the commit "f2fs: support 64-bits key in f2fs rb-tree node entry".

Reported-by: Nicolas Chauvet <kwizart@...il.com>
Signed-off-by: Chao Yu <yuchao0@...wei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
---
 fs/f2fs/f2fs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 713ab95223ef6..ce79b9b5b1eff 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -617,7 +617,7 @@ struct rb_entry {
 			unsigned int len;	/* length of the entry */
 		};
 		unsigned long long key;		/* 64-bits key */
-	};
+	} __packed;
 };
 
 struct extent_info {
-- 
2.28.0.1011.ga647a8990f-goog