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mm/swap: remove unused local variable nr_shadows

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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: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Miaohe Lin 2021-06-28 19:37:03 -07:00 committed by Linus Torvalds
parent bb243f7dc6
commit eb7709c5f3
1 changed files with 0 additions and 5 deletions
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5
mm/swap_state.c
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@ -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);