From 724bbe49c5e427cb077357d72d240a649f2e4054 Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Mon, 30 May 2022 13:36:45 +0200 Subject: [PATCH] fs/ntfs3: provide block_invalidate_folio to fix memory leak MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The ntfs3 filesystem lacks the 'invalidate_folio' method and it causes memory leak. If you write to the filesystem and then unmount it, the cached written data are not freed and they are permanently leaked. Fixes: 7ba13abbd31e ("fs: Turn block_invalidatepage into block_invalidate_folio") Reported-by: José Luis Lara Carrascal Signed-off-by: Mikulas Patocka Acked-by: Matthew Wilcox (Oracle) Reviewed-by: Namjae Jeon Signed-off-by: Konstantin Komarov Cc: stable@vger.kernel.org # v5.18 --- fs/ntfs3/inode.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c index 76519c7..3804526 100644 --- a/fs/ntfs3/inode.c +++ b/fs/ntfs3/inode.c @@ -1955,6 +1955,7 @@ const struct address_space_operations ntfs_aops = { .direct_IO = ntfs_direct_IO, .bmap = ntfs_bmap, .dirty_folio = block_dirty_folio, + .invalidate_folio = block_invalidate_folio, }; const struct address_space_operations ntfs_aops_cmpr = { -- 2.7.4