From fad159f69edabac046c725cdecf22275199b2dd0 Mon Sep 17 00:00:00 2001 From: Filipe Manana Date: Thu, 13 Nov 2025 13:04:13 +0000 Subject: [PATCH] btrfs: add unlikely to critical error in btrfs_extend_item() It's not expected to get a data size less than the leaf's free space, which would lead to a leaf dump and BUG(), so tag the if statement's expression as unlikely, hinting the compiler to potentially generate better code. Reviewed-by: Qu Wenruo Signed-off-by: Filipe Manana Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/ctree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index e683f961742af..b5cf1b6f5adcc 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -4106,7 +4106,7 @@ void btrfs_extend_item(struct btrfs_trans_handle *trans, nritems = btrfs_header_nritems(leaf); data_end = leaf_data_end(leaf); - if (btrfs_leaf_free_space(leaf) < data_size) { + if (unlikely(btrfs_leaf_free_space(leaf) < data_size)) { btrfs_print_leaf(leaf); BUG(); } -- 2.47.3