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Commit 698dd4ba authored by Matt Mackall's avatar Matt Mackall Committed by Linus Torvalds
Browse files

maps4: move is_swap_pte 



Move is_swap_pte helper function to swapops.h for use by pagemap code

Signed-off-by: default avatarMatt Mackall <mpm@selenic.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 82455257

include/linux/swapops.h

+6 −0
Original line number Diff line number Diff line
@@ -42,6 +42,12 @@ static inline pgoff_t swp_offset(swp_entry_t entry) 
	return entry.val & SWP_OFFSET_MASK(entry);

}



/* check whether a pte points to a swap entry */

static inline int is_swap_pte(pte_t pte)

{

	return !pte_none(pte) && !pte_present(pte) && !pte_file(pte);

}



/*

 * Convert the arch-dependent pte representation of a swp_entry_t into an

 * arch-independent swp_entry_t.

mm/migrate.c

+0 −5
Original line number Diff line number Diff line
@@ -115,11 +115,6 @@ int putback_lru_pages(struct list_head *l) 
	return count;

}



static inline int is_swap_pte(pte_t pte)

{

	return !pte_none(pte) && !pte_present(pte) && !pte_file(pte);

}



/*

 * Restore a potential migration pte to a working pte entry

 */