Re: [PATCH 02/20] mm: zswap: inline and remove zswap_entry_find_get()

From: Nhat Pham
Date: Tue Jan 30 2024 - 11:24:35 EST


On Mon, Jan 29, 2024 at 5:42 PM Johannes Weiner <hannes@xxxxxxxxxxx> wrote:
>
> There is only one caller and the function is trivial. Inline it.
>
> Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
> ---
> mm/zswap.c | 17 ++---------------
> 1 file changed, 2 insertions(+), 15 deletions(-)
>
> diff --git a/mm/zswap.c b/mm/zswap.c
> index 173f2e6657de..cf864aaa214d 100644
> --- a/mm/zswap.c
> +++ b/mm/zswap.c
> @@ -559,19 +559,6 @@ static void zswap_entry_put(struct zswap_entry *entry)
> }
> }
>
> -/* caller must hold the tree lock */
> -static struct zswap_entry *zswap_entry_find_get(struct rb_root *root,
> - pgoff_t offset)
> -{
> - struct zswap_entry *entry;
> -
> - entry = zswap_rb_search(root, offset);
> - if (entry)
> - zswap_entry_get(entry);
> -
> - return entry;
> -}
> -
> /*********************************
> * shrinker functions
> **********************************/
> @@ -1708,13 +1695,13 @@ bool zswap_load(struct folio *folio)
>
> VM_WARN_ON_ONCE(!folio_test_locked(folio));
>
> - /* find */
> spin_lock(&tree->lock);
> - entry = zswap_entry_find_get(&tree->rbroot, offset);
> + entry = zswap_rb_search(&tree->rbroot, offset);
> if (!entry) {
> spin_unlock(&tree->lock);
> return false;
> }
> + zswap_entry_get(entry);

Neat.
Reviewed-by: Nhat Pham <nphamcs@xxxxxxxxx>

> spin_unlock(&tree->lock);
>
> if (entry->length)
> --
> 2.43.0
>