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Date:   Sat, 17 Oct 2020 20:12:49 +0800
From:   Pujin Shi <>
To:     Chris Mason <>, Josef Bacik <>,
        David Sterba <>,
        Filipe Manana <>
Cc:     Nikolay Borisov <>, Qu Wenruo <>,,,
        Pujin Shi <>
Subject: [PATCH v2] fs: btrfs: Fix incorrect printf qualifier

This patch addresses a compile warning:
fs/btrfs/extent-tree.c: In function '__btrfs_free_extent':
fs/btrfs/extent-tree.c:3187:4: warning: format '%lu' expects argument of type 'long unsigned int', but argument 8 has type 'unsigned int' [-Wformat=]

Fixes: 1c2a07f598d5 ("btrfs: extent-tree: kill BUG_ON() in __btrfs_free_extent()")
Signed-off-by: Pujin Shi <>
 fs/btrfs/extent-tree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 3b21fee13e77..5fd60b13f4f8 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3185,7 +3185,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans,
 		struct btrfs_tree_block_info *bi;
 		if (item_size < sizeof(*ei) + sizeof(*bi)) {
-"invalid extent item size for key (%llu, %u, %llu) owner %llu, has %u expect >= %lu",
+"invalid extent item size for key (%llu, %u, %llu) owner %llu, has %u expect >= %zu",
 				   key.objectid, key.type, key.offset,
 				   owner_objectid, item_size,
 				   sizeof(*ei) + sizeof(*bi));

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