The patch titled Subject: maple_tree: shrink struct maple_tree from 24 to 16 bytes on LP64 has been added to the -mm mm-unstable branch. Its filename is maple_tree-shrink-struct-maple_tree-from-24-to-16-bytes-on-lp64.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/maple_tree-shrink-struct-maple_tree-from-24-to-16-bytes-on-lp64.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Mateusz Guzik <mjguzik@xxxxxxxxx> Subject: maple_tree: shrink struct maple_tree from 24 to 16 bytes on LP64 Date: Tue, 22 Aug 2023 00:51:45 +0200 by plugging a padding hole. 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> Cc: Matthew Wilcox <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 maple_tree-shrink-struct-maple_tree-from-24-to-16-bytes-on-lp64.patch