Commit eb7709c5 authored by Miaohe Lin's avatar Miaohe Lin Committed by Linus Torvalds
Browse files

mm/swap: remove unused local variable nr_shadows 

Since commit 55c653b71e8c ("mm: stop accounting shadow entries"),
nr_shadows is not used anymore.

Link: https://lkml.kernel.org/r/20210520134022.1370406-3-linmiaohe@huawei.com


Signed-off-by: default avatarMiaohe Lin <linmiaohe@huawei.com>
Reviewed-by: default avatarMatthew Wilcox (Oracle) <willy@infradead.org>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent bb243f7d

mm/swap_state.c

+0 −5
Original line number Diff line number Diff line
@@ -114,8 +114,6 @@ int add_to_swap_cache(struct page *page, swp_entry_t entry, 
	SetPageSwapCache(page);



	do {

		unsigned long nr_shadows = 0;



		xas_lock_irq(&xas);

		xas_create_range(&xas);

		if (xas_error(&xas))
@@ -124,7 +122,6 @@ int add_to_swap_cache(struct page *page, swp_entry_t entry, 
			VM_BUG_ON_PAGE(xas.xa_index != idx + i, page);

			old = xas_load(&xas);

			if (xa_is_value(old)) {

				nr_shadows++;

				if (shadowp)

					*shadowp = old;

			}
@@ -260,7 +257,6 @@ void clear_shadow_from_swap_cache(int type, unsigned long begin, 
	void *old;



	for (;;) {

		unsigned long nr_shadows = 0;

		swp_entry_t entry = swp_entry(type, curr);

		struct address_space *address_space = swap_address_space(entry);

		XA_STATE(xas, &address_space->i_pages, curr);
@@ -270,7 +266,6 @@ void clear_shadow_from_swap_cache(int type, unsigned long begin, 
			if (!xa_is_value(old))

				continue;

			xas_store(&xas, NULL);

			nr_shadows++;

		}

		xa_unlock_irq(&address_space->i_pages);