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maple_tree: move up mas_wr_store_setup() and mas_wr_prealloc_setup()
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Subsequent patches require these definitions to be higher, no functional
changes intended.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Sidhartha Kumar <[email protected]>
Reviewed-by: Liam R. Howlett <[email protected]>
Cc: Matthew Wilcox (Oracle) <[email protected]>
Cc: Suren Baghdasaryan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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sidkumar99 authored and akpm00 committed Sep 2, 2024
1 parent 19138a2 commit 3cc6f42
Showing 1 changed file with 48 additions and 48 deletions.
96 changes: 48 additions & 48 deletions lib/maple_tree.c
Original file line number Diff line number Diff line change
Expand Up @@ -4227,6 +4227,54 @@ static inline void mas_wr_store_entry(struct ma_wr_state *wr_mas)
mas_wr_modify(wr_mas);
}

static void mas_wr_store_setup(struct ma_wr_state *wr_mas)
{
if (!mas_is_active(wr_mas->mas)) {
if (mas_is_start(wr_mas->mas))
return;

if (unlikely(mas_is_paused(wr_mas->mas)))
goto reset;

if (unlikely(mas_is_none(wr_mas->mas)))
goto reset;

if (unlikely(mas_is_overflow(wr_mas->mas)))
goto reset;

if (unlikely(mas_is_underflow(wr_mas->mas)))
goto reset;
}

/*
* A less strict version of mas_is_span_wr() where we allow spanning
* writes within this node. This is to stop partial walks in
* mas_prealloc() from being reset.
*/
if (wr_mas->mas->last > wr_mas->mas->max)
goto reset;

if (wr_mas->entry)
return;

if (mte_is_leaf(wr_mas->mas->node) &&
wr_mas->mas->last == wr_mas->mas->max)
goto reset;

return;

reset:
mas_reset(wr_mas->mas);
}

static inline void mas_wr_prealloc_setup(struct ma_wr_state *wr_mas)
{
struct ma_state *mas = wr_mas->mas;

mas_wr_store_setup(wr_mas);
wr_mas->content = mas_start(mas);
}

/**
* mas_insert() - Internal call to insert a value
* @mas: The maple state
Expand Down Expand Up @@ -5358,54 +5406,6 @@ static inline void mte_destroy_walk(struct maple_enode *enode,
mt_destroy_walk(enode, mt, true);
}
}

static void mas_wr_store_setup(struct ma_wr_state *wr_mas)
{
if (!mas_is_active(wr_mas->mas)) {
if (mas_is_start(wr_mas->mas))
return;

if (unlikely(mas_is_paused(wr_mas->mas)))
goto reset;

if (unlikely(mas_is_none(wr_mas->mas)))
goto reset;

if (unlikely(mas_is_overflow(wr_mas->mas)))
goto reset;

if (unlikely(mas_is_underflow(wr_mas->mas)))
goto reset;
}

/*
* A less strict version of mas_is_span_wr() where we allow spanning
* writes within this node. This is to stop partial walks in
* mas_prealloc() from being reset.
*/
if (wr_mas->mas->last > wr_mas->mas->max)
goto reset;

if (wr_mas->entry)
return;

if (mte_is_leaf(wr_mas->mas->node) &&
wr_mas->mas->last == wr_mas->mas->max)
goto reset;

return;

reset:
mas_reset(wr_mas->mas);
}

static inline void mas_wr_prealloc_setup(struct ma_wr_state *wr_mas)
{
struct ma_state *mas = wr_mas->mas;

mas_wr_store_setup(wr_mas);
wr_mas->content = mas_start(mas);
}
/* Interface */

/**
Expand Down

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