From: Mikulas Patocka mpatocka@redhat.com
commit 724bbe49c5e427cb077357d72d240a649f2e4054 upstream.
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 manualinux@yahoo.es Signed-off-by: Mikulas Patocka mpatocka@redhat.com Acked-by: Matthew Wilcox (Oracle) willy@infradead.org Reviewed-by: Namjae Jeon linkinjeon@kernel.org Signed-off-by: Konstantin Komarov almaz.alexandrovich@paragon-software.com Cc: stable@vger.kernel.org # v5.18 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ntfs3/inode.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/ntfs3/inode.c +++ b/fs/ntfs3/inode.c @@ -1951,6 +1951,7 @@ const struct address_space_operations nt .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 = {