The patch titled
Subject: mm/huge_memory.c: remove unused variable 'count'
has been added to the -mm tree. Its filename is
mm-thp-check-total_mapcount-instead-of-page_mapcount-fix.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-thp-check-total_mapcount-instead-of-page_mapcount-fix.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-thp-check-total_mapcount-instead-of-page_mapcount-fix.patch
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------------------------------------------------------
From: Pu Lehui <pulehui@xxxxxxxxxx>
Subject: mm/huge_memory.c: remove unused variable 'count'
mm/huge_memory.c:2663:6: warning:
variable `count' set but not used [-Wunused-but-set-variable]
2663 | int count, mapcount, extra_pins, ret;
| ^~~~~
This variable is not used in function , this commit
remove it to fix the warning.
Link: https://lkml.kernel.org/r/20210514065912.71734-1-pulehui@xxxxxxxxxx
Signed-off-by: Pu Lehui <pulehui@xxxxxxxxxx>
Cc: Yang Shi <shy828301@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/huge_memory.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/mm/huge_memory.c~mm-thp-check-total_mapcount-instead-of-page_mapcount-fix
+++ a/mm/huge_memory.c
@@ -2660,7 +2660,7 @@ int split_huge_page_to_list(struct page
struct deferred_split *ds_queue = get_deferred_split_queue(head);
struct anon_vma *anon_vma = NULL;
struct address_space *mapping = NULL;
- int count, mapcount, extra_pins, ret;
+ int mapcount, extra_pins, ret;
pgoff_t end;
VM_BUG_ON_PAGE(is_huge_zero_page(head), head);
@@ -2737,7 +2737,6 @@ int split_huge_page_to_list(struct page
/* Prevent deferred_split_scan() touching ->_refcount */
spin_lock(&ds_queue->split_queue_lock);
- count = page_count(head);
mapcount = total_mapcount(head);
if (!mapcount && page_ref_freeze(head, 1 + extra_pins)) {
if (!list_empty(page_deferred_list(head))) {
_
Patches currently in -mm which might be from pulehui@xxxxxxxxxx are
mm-thp-check-total_mapcount-instead-of-page_mapcount-fix.patch
