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highmem: add kernel-doc for memcpy_*_folio()
This was inadvertently skipped when adding the new functions. Link: https://lkml.kernel.org/r/20240124181217.1761674-1-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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@ -439,6 +439,13 @@ static inline void memzero_page(struct page *page, size_t offset, size_t len)
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kunmap_local(addr);
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}
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/**
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* memcpy_from_folio - Copy a range of bytes from a folio.
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* @to: The memory to copy to.
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* @folio: The folio to read from.
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* @offset: The first byte in the folio to read.
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* @len: The number of bytes to copy.
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*/
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static inline void memcpy_from_folio(char *to, struct folio *folio,
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size_t offset, size_t len)
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{
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@ -460,6 +467,13 @@ static inline void memcpy_from_folio(char *to, struct folio *folio,
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} while (len > 0);
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}
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/**
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* memcpy_to_folio - Copy a range of bytes to a folio.
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* @folio: The folio to write to.
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* @offset: The first byte in the folio to store to.
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* @from: The memory to copy from.
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* @len: The number of bytes to copy.
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*/
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static inline void memcpy_to_folio(struct folio *folio, size_t offset,
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const char *from, size_t len)
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{
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