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authorMatthew Wilcox (Oracle) <willy@infradead.org>2022-01-14 14:06:44 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2022-01-15 16:30:28 +0200
commit020e87650af9f43683546729f959fdc78422a4b7 (patch)
tree5221a7d305f8546de0953d159efb852b5101b752 /mm/swapfile.c
parentd283d422c6c4f0264fe8ecf5ae80036bf73f4594 (diff)
mm: remove last argument of reuse_swap_page()
None of the callers care about the total_map_swapcount() any more. Link: https://lkml.kernel.org/r/20211220205943.456187-1-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Reviewed-by: William Kucharski <william.kucharski@oracle.com> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/swapfile.c')
-rw-r--r--mm/swapfile.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c
index e64207e2ef1d..31d13a393cf0 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1668,12 +1668,8 @@ static int page_trans_huge_map_swapcount(struct page *page, int *total_mapcount,
* to it. And as a side-effect, free up its swap: because the old content
* on disk will never be read, and seeking back there to write new content
* later would only waste time away from clustering.
- *
- * NOTE: total_map_swapcount should not be relied upon by the caller if
- * reuse_swap_page() returns false, but it may be always overwritten
- * (see the other implementation for CONFIG_SWAP=n).
*/
-bool reuse_swap_page(struct page *page, int *total_map_swapcount)
+bool reuse_swap_page(struct page *page)
{
int count, total_mapcount, total_swapcount;
@@ -1682,8 +1678,6 @@ bool reuse_swap_page(struct page *page, int *total_map_swapcount)
return false;
count = page_trans_huge_map_swapcount(page, &total_mapcount,
&total_swapcount);
- if (total_map_swapcount)
- *total_map_swapcount = total_mapcount + total_swapcount;
if (count == 1 && PageSwapCache(page) &&
(likely(!PageTransCompound(page)) ||
/* The remaining swap count will be freed soon */