READ_ONLY_THP_FOR_FS is no longer present, remove related comment.

Signed-off-by: Zi Yan <ziy@nvidia.com>
---
 fs/btrfs/defrag.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/fs/btrfs/defrag.c b/fs/btrfs/defrag.c
index 7e2db5d3a4d4..a8d49d9ca981 100644
--- a/fs/btrfs/defrag.c
+++ b/fs/btrfs/defrag.c
@@ -860,9 +860,6 @@ static struct folio *defrag_prepare_one_folio(struct btrfs_inode *inode, pgoff_t
 		return folio;
 
 	/*
-	 * Since we can defragment files opened read-only, we can encounter
-	 * transparent huge pages here (see CONFIG_READ_ONLY_THP_FOR_FS).
-	 *
 	 * The IO for such large folios is not fully tested, thus return
 	 * an error to reject such folios unless it's an experimental build.
 	 *
-- 
2.43.0

On Mon, Mar 23, 2026 at 03:06:42PM -0400, Zi Yan wrote:
> READ_ONLY_THP_FOR_FS is no longer present, remove related comment.
> 
> Signed-off-by: Zi Yan <ziy@nvidia.com>

Acked-by: David Sterba <dsterba@suse.com>