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mm: frontswap: split out function to clear a page out
Signed-off-by: Sasha Levin <levinsasha928@gmail.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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parent
f9f08103eb
commit
611edfed29
1 changed files with 9 additions and 6 deletions
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@ -114,6 +114,12 @@ void __frontswap_init(unsigned type)
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}
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EXPORT_SYMBOL(__frontswap_init);
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static inline void __frontswap_clear(struct swap_info_struct *sis, pgoff_t offset)
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{
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frontswap_clear(sis, offset);
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atomic_dec(&sis->frontswap_pages);
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}
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/*
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* "Store" data from a page to frontswap and associate it with the page's
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* swaptype and offset. Page must be locked and in the swap cache.
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@ -145,10 +151,8 @@ int __frontswap_store(struct page *page)
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the (older) page from frontswap
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*/
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inc_frontswap_failed_stores();
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if (dup) {
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frontswap_clear(sis, offset);
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atomic_dec(&sis->frontswap_pages);
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}
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if (dup)
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__frontswap_clear(sis, offset);
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}
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if (frontswap_writethrough_enabled)
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/* report failure so swap also writes to swap device */
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@ -191,8 +195,7 @@ void __frontswap_invalidate_page(unsigned type, pgoff_t offset)
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BUG_ON(sis == NULL);
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if (frontswap_test(sis, offset)) {
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frontswap_ops.invalidate_page(type, offset);
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atomic_dec(&sis->frontswap_pages);
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frontswap_clear(sis, offset);
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__frontswap_clear(sis, offset);
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inc_frontswap_invalidates();
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}
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}
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