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authorMatthew Wilcox (Oracle) <willy@infradead.org>2024-08-21 20:34:37 +0100
committerAndrew Morton <akpm@linux-foundation.org>2024-09-03 21:15:44 -0700
commit32f51ead3d7771cdec29f75e08d50a76d2c6253d (patch)
tree6e0a9b32d4ee97c7bbcb41d6228dc12390f92067 /include
parent6f394ee9ddb4bd1879e42c9c8648a37f650bea99 (diff)
mm: remove PageSwapCache
This flag is now only used on folios, so we can remove all the page accessors and reword the comments that refer to them. Link: https://lkml.kernel.org/r/20240821193445.2294269-5-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mm_types.h2
-rw-r--r--include/linux/page-flags.h11
2 files changed, 4 insertions, 9 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 2419e60c9a7f..6e3bdf8e38bc 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -109,7 +109,7 @@ struct page {
/**
* @private: Mapping-private opaque data.
* Usually used for buffer_heads if PagePrivate.
- * Used for swp_entry_t if PageSwapCache.
+ * Used for swp_entry_t if swapcache flag set.
* Indicates order in the buddy system if PageBuddy.
*/
unsigned long private;
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 71444223d630..b31d2c50b6f0 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -574,15 +574,10 @@ static __always_inline bool folio_test_swapcache(const struct folio *folio)
test_bit(PG_swapcache, const_folio_flags(folio, 0));
}
-static __always_inline bool PageSwapCache(const struct page *page)
-{
- return folio_test_swapcache(page_folio(page));
-}
-
-SETPAGEFLAG(SwapCache, swapcache, PF_NO_TAIL)
-CLEARPAGEFLAG(SwapCache, swapcache, PF_NO_TAIL)
+FOLIO_SET_FLAG(swapcache, FOLIO_HEAD_PAGE)
+FOLIO_CLEAR_FLAG(swapcache, FOLIO_HEAD_PAGE)
#else
-PAGEFLAG_FALSE(SwapCache, swapcache)
+FOLIO_FLAG_FALSE(swapcache)
#endif
PAGEFLAG(Unevictable, unevictable, PF_HEAD)