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highmem: add kernel-doc for memcpy_*_folio()

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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>
This commit is contained in:
Matthew Wilcox (Oracle) 2024-01-24 18:12:15 +00:00 committed by Andrew Morton
parent 73954d379e
commit 9af47276ed
1 changed files with 14 additions and 0 deletions
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14
include/linux/highmem.h
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@ -439,6 +439,13 @@ static inline void memzero_page(struct page *page, size_t offset, size_t len)
kunmap_local(addr);
}
/**
* memcpy_from_folio - Copy a range of bytes from a folio.
* @to: The memory to copy to.
* @folio: The folio to read from.
* @offset: The first byte in the folio to read.
* @len: The number of bytes to copy.
*/
static inline void memcpy_from_folio(char *to, struct folio *folio,
size_t offset, size_t len)
{
@ -460,6 +467,13 @@ static inline void memcpy_from_folio(char *to, struct folio *folio,
} while (len > 0);
}
/**
* memcpy_to_folio - Copy a range of bytes to a folio.
* @folio: The folio to write to.
* @offset: The first byte in the folio to store to.
* @from: The memory to copy from.
* @len: The number of bytes to copy.
*/
static inline void memcpy_to_folio(struct folio *folio, size_t offset,
const char *from, size_t len)
{