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mm: remove lookup_swap_cache() 

All callers have now been converted to swap_cache_get_folio(), so we can
remove this wrapper.

Link: https://lkml.kernel.org/r/20220902194653.1739778-39-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2022-09-02 20:46:34 +01:00 committed by Andrew Morton
parent 5a423081b2
commit cb691e2f28
3 changed files with 2 additions and 22 deletions
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2
mm/memcontrol.c
View File

@ -5569,7 +5569,7 @@ static struct page *mc_handle_swap_pte(struct vm_area_struct *vma,
return NULL;
/*
* Because lookup_swap_cache() updates some statistics counter,
* Because swap_cache_get_folio() updates some statistics counter,
* we call find_get_page() with swapper_space directly.
*/
page = find_get_page(swap_address_space(ent), swp_offset(ent));

10
mm/swap.h
View File

@ -41,9 +41,6 @@ void clear_shadow_from_swap_cache(int type, unsigned long begin,
unsigned long end);
struct folio *swap_cache_get_folio(swp_entry_t entry,
struct vm_area_struct *vma, unsigned long addr);
struct page *lookup_swap_cache(swp_entry_t entry,
struct vm_area_struct *vma,
unsigned long addr);
struct page *find_get_incore_page(struct address_space *mapping, pgoff_t index);
struct page *read_swap_cache_async(swp_entry_t entry, gfp_t gfp_mask,
@ -107,13 +104,6 @@ static inline struct folio *swap_cache_get_folio(swp_entry_t entry,
return NULL;
}
static inline struct page *lookup_swap_cache(swp_entry_t swp,
struct vm_area_struct *vma,
unsigned long addr)
{
return NULL;
}
static inline
struct page *find_get_incore_page(struct address_space *mapping, pgoff_t index)
{

12
mm/swap_state.c
View File

@ -369,16 +369,6 @@ struct folio *swap_cache_get_folio(swp_entry_t entry,
return folio;
}
struct page *lookup_swap_cache(swp_entry_t entry, struct vm_area_struct *vma,
unsigned long addr)
{
struct folio *folio = swap_cache_get_folio(entry, vma, addr);
if (!folio)
return NULL;
return folio_file_page(folio, swp_offset(entry));
}
/**
* find_get_incore_page - Find and get a page from the page or swap caches.
* @mapping: The address_space to search.
@ -430,7 +420,7 @@ struct page *__read_swap_cache_async(swp_entry_t entry, gfp_t gfp_mask,
int err;
/*
* First check the swap cache. Since this is normally
* called after lookup_swap_cache() failed, re-calling
* called after swap_cache_get_folio() failed, re-calling
* that would confuse statistics.
*/
si = get_swap_device(entry);