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maple_tree: don't pass end to mas_wr_append()

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Figure out the end internally.  This is necessary for future cleanups.

Link: https://lkml.kernel.org/r/20260130205935.2559335-30-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Alice Ryhl <aliceryhl@google.com>
Cc: Andrew Ballance <andrewjballance@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christian Kujau <lists@nerdbynature.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: SeongJae Park <sj@kernel.org>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Liam R. Howlett
2026-01-30 15:59:34 -05:00
committed by Andrew Morton
parent 2969241fa2
commit b82f4c811e
1 changed files with 3 additions and 4 deletions
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7
lib/maple_tree.c
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@@ -3309,18 +3309,17 @@ static inline unsigned char mas_wr_new_end(struct ma_wr_state *wr_mas)
/*
* mas_wr_append: Attempt to append
* @wr_mas: the maple write state
* @new_end: The end of the node after the modification
*
* This is currently unsafe in rcu mode since the end of the node may be cached
* by readers while the node contents may be updated which could result in
* inaccurate information.
*/
static inline void mas_wr_append(struct ma_wr_state *wr_mas,
unsigned char new_end)
static inline void mas_wr_append(struct ma_wr_state *wr_mas)
{
struct ma_state *mas = wr_mas->mas;
void __rcu **slots;
unsigned char end = mas->end;
unsigned char new_end = mas_wr_new_end(wr_mas);
if (new_end < mt_pivots[wr_mas->type]) {
wr_mas->pivots[new_end] = wr_mas->pivots[end];
@@ -3513,7 +3512,7 @@ static inline void mas_wr_store_entry(struct ma_wr_state *wr_mas)
mas_update_gap(mas);
break;
case wr_append:
mas_wr_append(wr_mas, new_end);
mas_wr_append(wr_mas);
break;
case wr_slot_store:
mas_wr_slot_store(wr_mas);