The quilt patch titled Subject: maple_tree: shrink struct maple_tree has been removed from the -mm tree. Its filename was maple_tree-shrink-struct-maple_tree-from-24-to-16-bytes-on-lp64.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Mateusz Guzik <mjguzik@xxxxxxxxx> Subject: maple_tree: shrink struct maple_tree Date: Tue, 22 Aug 2023 00:51:45 +0200 Pack the members of struct maple_tree to avoid holes on 64-bit. The size shrinks from 24 to 16 bytes which will save eight bytes in every structure which embeds it. [willy@xxxxxxxxxxxxx: changelog alterations] Link: https://lkml.kernel.org/r/20230821225145.2169848-1-mjguzik@xxxxxxxxx Signed-off-by: Mateusz Guzik <mjguzik@xxxxxxxxx> Reviewed-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx> Reviewed-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/maple_tree.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/include/linux/maple_tree.h~maple_tree-shrink-struct-maple_tree-from-24-to-16-bytes-on-lp64 +++ a/include/linux/maple_tree.h @@ -220,8 +220,8 @@ struct maple_tree { spinlock_t ma_lock; lockdep_map_p ma_external_lock; }; - void __rcu *ma_root; unsigned int ma_flags; + void __rcu *ma_root; }; /** _ Patches currently in -mm which might be from mjguzik@xxxxxxxxx are