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Howlett" To: Andrew Morton Cc: maple-tree@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Suren Baghdasaryan , Matthew Wilcox , Sidhartha Kumar , Vlastimil Babka , Alice Ryhl , Kuninori Morimoto , Geert Uytterhoeven , Arnd Bergmann , Christian Kujau , "Liam R. 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Take the opportunity to remove l_mas from being used anywhere but in the maple_subtree_state. Signed-off-by: Liam R. Howlett --- lib/maple_tree.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/lib/maple_tree.c b/lib/maple_tree.c index be855f204bcf7..e17f0b6723a85 100644 --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -2751,7 +2751,7 @@ static void mas_spanning_rebalance(struct ma_state *mas, static noinline void mas_wr_spanning_rebalance(struct ma_state *mas, struct maple_subtree_state *mast, unsigned char height, - struct ma_wr_state *l_wr_mas) + struct ma_wr_state *wr_mas) { struct maple_big_node b_node; MA_STATE(l_mas, mas->tree, mas->index, mas->index); @@ -2760,7 +2760,7 @@ static noinline void mas_wr_spanning_rebalance(struct ma_state *mas, memset(&b_node, 0, sizeof(struct maple_big_node)); /* Copy l_mas and store the value in b_node. */ - mas_store_b_node(l_wr_mas, &b_node, mast->orig_l->end); + mas_store_b_node(wr_mas, &b_node, mast->orig_l->end); /* Copy r_mas into b_node if there is anything to copy. */ if (mast->orig_r->max > mast->orig_r->last) mas_mab_cp(mast->orig_r, mast->orig_r->offset, @@ -3454,7 +3454,6 @@ static void mas_wr_spanning_store(struct ma_wr_state *wr_mas) MA_STATE(l_mas, NULL, 0, 0); MA_STATE(r_mas, NULL, 0, 0); MA_WR_STATE(r_wr_mas, &r_mas, wr_mas->entry); - MA_WR_STATE(l_wr_mas, &l_mas, wr_mas->entry); /* * A store operation that spans multiple nodes is called a spanning @@ -3494,25 +3493,23 @@ static void mas_wr_spanning_store(struct ma_wr_state *wr_mas) r_mas.last = r_mas.index = mas->last; /* Set up left side. */ - l_mas = *mas; - mas_wr_walk_index(&l_wr_mas); + mas_wr_walk_index(wr_mas); if (!wr_mas->entry) { - mas_extend_spanning_null(&l_wr_mas, &r_wr_mas); - mas->offset = l_mas.offset; - mas->index = l_mas.index; - mas->last = l_mas.last = r_mas.last; + mas_extend_spanning_null(wr_mas, &r_wr_mas); + mas->last = r_mas.last; } /* expanding NULLs may make this cover the entire range */ - if (!l_mas.index && r_mas.last == ULONG_MAX) { + if (!mas->index && r_mas.last == ULONG_MAX) { mas_set_range(mas, 0, ULONG_MAX); return mas_new_root(mas, wr_mas->entry); } + l_mas = *mas; mast.orig_l = &l_mas; mast.orig_r = &r_mas; - mas_wr_spanning_rebalance(mas, &mast, height + 1, &l_wr_mas); + mas_wr_spanning_rebalance(mas, &mast, height + 1, wr_mas); } /* -- 2.47.3