maps4: move is_swap_pte
Move is_swap_pte helper function to swapops.h for use by pagemap code Signed-off-by: Matt Mackall <mpm@selenic.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -42,6 +42,12 @@ static inline pgoff_t swp_offset(swp_entry_t entry)
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return entry.val & SWP_OFFSET_MASK(entry);
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}
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/* check whether a pte points to a swap entry */
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static inline int is_swap_pte(pte_t pte)
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{
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return !pte_none(pte) && !pte_present(pte) && !pte_file(pte);
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}
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/*
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* Convert the arch-dependent pte representation of a swp_entry_t into an
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* arch-independent swp_entry_t.
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@ -115,11 +115,6 @@ int putback_lru_pages(struct list_head *l)
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return count;
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}
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static inline int is_swap_pte(pte_t pte)
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{
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return !pte_none(pte) && !pte_present(pte) && !pte_file(pte);
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}
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/*
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* Restore a potential migration pte to a working pte entry
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*/
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