+ maple_tree-remove-unused-mas_is_root_limits.patch added to mm-new branch

+ maple_tree-remove-unused-mas_is_root_limits.patch added to mm-new branch

[Andrew Morton]

The patch titled
     Subject: maple_tree: remove unused mas_is_root_limits()
has been added to the -mm mm-new branch.  Its filename is
     maple_tree-remove-unused-mas_is_root_limits.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/maple_tree-remove-unused-mas_is_root_limits.patch

This patch will later appear in the mm-new branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

The mm-new branch of mm.git is not included in linux-next

If a few days of testing in mm-new is successful, the patch will me moved
into mm.git's mm-unstable branch, which is included in linux-next

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------------------------------------------------------
From: Zhan Xusheng <zhanxusheng1024@gmail.com>
Subject: maple_tree: remove unused mas_is_root_limits()
Date: Wed, 5 Aug 2026 15:05:29 +0800

The last callers of mas_is_root_limits() were removed by commit
b8852ef30c67 ("maple_tree: remove maple big node and subtree structs"),
together with the maple subtree state (mast_*) code that used it.  As a
static inline it does not trigger -Wunused-function, so it went unnoticed.

Remove it. No functional change.

Link: https://lore.kernel.org/20260805070529.4118794-1-zhanxusheng@xiaomi.com
Signed-off-by: Zhan Xusheng <zhanxusheng@xiaomi.com>
Reviewed-by: Liam R. Howlett (Oracle) <liam@infradead.org>
Cc: Alice Ryhl <aliceryhl@google.com>
Cc: Andrew Ballance <andrewjballance@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 lib/maple_tree.c |    5 -----
 1 file changed, 5 deletions(-)

--- a/lib/maple_tree.c~maple_tree-remove-unused-mas_is_root_limits
+++ a/lib/maple_tree.c
@@ -362,11 +362,6 @@ static __always_inline bool mte_is_root(
 	return ma_is_root(mte_to_node(node));
 }
 
-static inline bool mas_is_root_limits(const struct ma_state *mas)
-{
-	return !mas->min && mas->max == ULONG_MAX;
-}
-
 static __always_inline bool mt_is_alloc(struct maple_tree *mt)
 {
 	return (mt->ma_flags & MT_FLAGS_ALLOC_RANGE);
_

Patches currently in -mm which might be from zhanxusheng1024@gmail.com are

maple_tree-remove-unused-mas_is_root_limits.patch
ocfs2-fix-readdir-position-truncation-on-32-bit-kernels.patch